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Articles tagged with "metal"
Results: 184
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Using a hand-held plasma cutter: Exploring techniques for cutting, gouging, & maintenanceNeed to learn some techniques for cutting, piercing, and gouging with a hand-held plasma cutter? Read on for six steps to follow when cutting; information about gouging; and tips on maintenance.
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How to avoid the top 10 problems in plasma cutting: Practical tips you can use right nowAttention to detail at the outset can save plasma cutting operators a load of trouble during production.
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Plasma pleases plentyTechnological developments in lasers are positioning them as an attractive alternative to plasma. But fabricators are still sticking with plasma cutting for many applications where speed and cost-effective operation are concerns.
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Optimizing consumable life in mechanized plasma cutting: Identifying and correcting typical problemsIf you don't stay on top of torch maintenance and replacing consumables, an efficient cutting process can quickly become a lot more expensive to operate.
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What is your facility cut out for? Circular and band saw purchases depend on application requirementsWhat cutting equipment you buy depends very heavily on what area of industry you are supplying, throughput requirements, and, not least, finances. Don't let preconceived notions prevent you from making the very best possible decision.
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Cutting to the chase: ArrayArray
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Take the old with the new - Selecting saw blades with new technologies in mindNew methods for cutting tube and pipe have been introduced to welding shops in the last few years—methods designed not only to cut metal, but also to cut costs.
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Band sawing bundled shapesBundled side by side or top to bottom, thin-walled structural metal shapes pose a productivity dilemma for sawing shops. Band saw efficiency typically is measured in cubic inches of stock removed per minute, and the most efficient cuts are those made in large, solid pieces.
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Pursuing a plate-cutting saw: Employees team up to make a buying decisionMetal Cutting Service, City of Industry (Los Angeles), Calif., specializes in sawing metals. President David Viel explained the company's strategy: "We do not buy or sell anything, we just add value to others' products." Although it does very little advertising, the 26-employee company has customers throughout the U.S., Europe, and Asia, even though the cost to ship material can be substantial.
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Cutting to the chase Sawing structural and architectural tubing: Sawing structural and architectural tubingThis article examines common fabrication processes for structural and architectural tube. It specifically focuses on cutting, sawing, miter cutting, bundle sawing, and cambering.
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Analyzing shear features: Basic knowledge can impact productivity, safetyUnderstanding shears is a matter of understanding shear features, including design and drive systems. This article offers information about evaluating shears and includes a list of 20 enhancements and explains each of them.
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8 ways to keep your shear in top shapeImproving uptime and reducing maintenance when using shears for high production could mean following a few key steps.
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Exploring complementary cutting methods: Comparing capabilities of laser, plasma, EDM to waterjet technologyThe various cutting methods available to fabrication shops today can be both a little daunting and very beneficial. Choice is good--learn how to make the most of the diversity all your choices offer to you.
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Fabricating technology advancements drive new plate finishing trendsThe same industry forces of nature—globalization, economic conditions, quality demands, and safety and environmental regulations—that are pressuring metal fabricators to do more, better, and faster with less are blowing no less forcefully on finishing fabricators.
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Blast Cleaning Equipment: What you need to know before buyingIf you are a fabricator of metal parts that need to be primed or painted, then you more than likely will have to prepare the part surface before finishing to produce the desired end result.
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Choosing the right coated abrasive for plate finishing applications: A look at grain propertiesMost plate fabricating companies need to select a coated abrasive to finish their parts. This selection process can be intimidating, as well as confusing, because so many types of coated abrasives are available.
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Folding technology makes sweeping changes: New developments in 200-year-old technologySchwenkbiegemachinen, or swing bending machines, have been in use for more than 200 years. European manufacturers began to power them with electrical or hydraulic power after World War II, when an enormous amount of sheet metal was used in the reconstruction of Europe.
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Hydroforming of tubes, extrusions, and sheetRecent advances at the University of Stuttgart and acfross the industry have opened doors for hydroforming all kinds of materials and shapes.
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Using hydroforming aluminum components versus steel stampings: The contender gains points, but the champion is still in the fightThis article examines two transitions that are occurring in the automotive industry—the change from stamping to hydroforming, and the substitution of aluminum where steel was used previously.
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Effective simulation of hydroforming: Current capabilities and requirements for the futureSimulation is used in the hydroforming process to replace the experimental investigation and tests required in a real tryout process.
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Dealing with internal pressure in free hydraulic bulging: Predicting results with FEAFor hydraulic tube bulging, direct pressure control is the most commonly used process. Pressure control allows engineers to determine the correct capacity hydraulic system and, more importantly, prevent tube rupture. However, inflow control, or control of the volume of fluid inside the tube, theoretically could be another viable hydroforming process. Finite element analysis has shown that inflow control could allow engineers to more accurately predict deformation behavior and therefore enhance the hydroforming process.
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Examining the effects of push assist on the formability of aluminum tubesIt is well-known that tube has become an important material for hydroforming hollow components. The increasing complexity of product structures, particularly in the automotive industry, often requires one or more forming operations before a tube actually is hydroformed. Prebending is one of these forming processes used to prepare tubes for the so-called prebent tube hydroforming.
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Tier 1 supplier builds four-stage competitive strategyF & P Manufacturing Inc., a tier-one automotive components supplier, focused on four areas when it developed a hydroforming line for manufacturing Honda Accord engine cradles. These areas were eliminating end scrap, decoupling the bending machines from the manufacturing line, reducing cycle time, and palletizing parts.
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Making the most of hydroforming: Pursuing product potential and possibilitiesHydroforming has become a competitive metal forming method and has succeeded in many applications because of its weight- and cost-saving attributes, elimination of joining operations, and ability to offer part design for confined spaces.
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Hydroforming heats up: New techniques and equipment push industry forwardHydroforming was one of the fastest-growing metal forming technologies during the 1990s. Most of U.S. industry cooled down during and after the recession of 2001, but things have been heating up lately, and the world of hydroforming is no exception. The North American Hydroforming Conference and Exhibition (Sept. 29 – Oct. 1 in Dayton, Ohio), which was sponsored by the Tube & Pipe Association, International® (TPA), and the Society of Manufacturing Engineers (SME), showcased new techniques, equipment, and applications that are moving the industry forward.
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Handling metal stamping wastes: Protecting the environment - - and your businessMetal stamping companies are required to comply with a number of regulations relating to the collection, transport, treatment, and disposal of the wastes they generate. As a result, each company must learn which materials are classfied as hazardous and how to comply with detailed regulations.
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Handling appliance steel: Tips for processing surface-sensitive materialsSavvy stampers are purchasing new equipment or modifying and retrofitting existing equipment to include prefinished materials features. By paying close attention to equipment, tension practices, material processing methods, and material handling, stampers can participate in the market for surface-sensitive materials.
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Anchor's a way down the road to improvement: Texas fabrication shop solves material handling dilemmaA Fort Worth, Texas-based fabricator found that it was spending thousands in moving material from one building to the next for various operations. The company embarked on several expansion projects and invested in new equipment to help remedy the situation.
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Mixed Metals Reactions: Danger in the ductworkUnder controlled conditions, aluminum and steel powders can be mixed to create a chemical reaction to produce heat for welding. If you mix these materials under uncontrolled conditions, you will want to call the fire department.
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The structure of metalLet's start with the obvious: Molten metals have no particular structure. The atoms that make up that metal are just whipping around helter-skelter—at a high rate of speed—with no real orderly, defined pattern.
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Welding cold-rolled steel to cast iron |
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Predicting the service life of galvanized steelZinc, which has been used to hot-dip-galvanize steel for 250 years, provides 50 to 75 years of corrosion protection in many environments. Empirical data collected about hot-dip galvanized (HDG) steel field performance from 1940 to 1980—in environments ranging from industrial to marine to suburban—indicates that zinc can prevent base steel corrosion more than other surface treatments. Because of zinc's long-lasting protection, projects require no maintenance and therefore no maintenance costs.
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Stretching metal's forming limits with HSP lubricants: Forming aluminum, high-strength steel without tooling upgrade |
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Phases, structures, and the influences of temperatureWhen you heat or cool a piece of metal to a specific temperature, that metal goes through what's called a phase change, in which its crystal structure changes. Sometimes the change is obvious. For example, when a piece of metal melts, it goes through a phase change when the crystal structure breaks down and the metal goes from solid to liquid. When it solidifies it's also a phase change, as the structure re-forms from liquid to solid.
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Considering thermal processes for dissimilar metals: Joining steel to aluminum in heat-intensive applicationsKnowing how to weld dissimilar metals is becoming more and more important. One reason is that it's often impossible for one material to provide the optimum chemical, physical, and mechanical characteristics needed for an application. For this reason, as well as cost efficiency, technology specialists are experimenting with different joining processes to weld bimetal joints optimally.
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Combating plate corrosion: Improving corrosion resistance through welding, fabrication methods |
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Making steels strongerWhen it comes to modifying a steel's strength and hardness, it's important to not confuse hardness with hardenability and remember that hardenability characteristics are important because they help identify how much a specific steel will harden during welding.
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Welding's effect on strengthening steelWelding can severely influence strengthened or hardened metals, depending on the hardening technique used. Because of this, post-weld heat treatment is often very helpful in maintaining weld joint strength because it softens or tempers any martensite or bainite that formed in the HAZ.
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Keeping pace with today's punching requirements: Advancements in tool design, metallurgy lead to more accurate holes, improved part qualityThis article provides the basics on how the punch, die, and stripper work; how to perform material thickness calculations on various materials; how different applications affect punching quality; how fully guided tooling counters lateral forces; and how metallurgy, coatings, and maintenance affect tooling.
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Punching tips: The easiest solution to slug management is to keep the tooling in good conditionThe author discusses what not to do to manage slug ejection. He mentions several tooling maintenance errors that he has made over the years, as well as what machine operators can do if they want to experience slug ejection difficulties. He concludes by stating that the easiest solution to slug management is to keep the tooling in good condition and to use the correct die clearance for the material.
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Getting more punch life: Alternate tooling alloy and coating reduce friction, heat buildupAugur Metal Products, a sheet metal fabricator that manufactures components for OEMs, punches large stainless-steel sheets for commercial separators. Its punches required sharpening after punching 10 to 15 sheets until it changed to Mate punches made from DuraSteel™ tooling with Maxima® coating and dies made with Mate's Slug Free® design. The new tooling allows the company to exceed 40 sheets between sharpenings and increase press speed by 20 percent.
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Mill coolant system design: Lubrication is more than meets the eyeWhat kind of coolant system you construct for your tube mill or roll forming operation is just as important as what type of coolant you use.
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Roll formers look for a win: Industry players hope to score with customization, better technology |
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How important is roll forming lubrication compatibility?At first glance, it doesn't seem that the compatibility of the lubricant used in the roll forming process needs much attention. You'd better look again. It may surprise you that the chemical and physical properties of the roll forming lubricant leave fingerprints in at least six different areas of the operation.
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Selecting the right materials for roll forming—Part 2: How mechanical properties affect productionThis is the second part of a two-part article. Read Part I. If you examine the mechanical properties of several materials, including carbon steel, alloyed steel, stainless steel, as they relate to roll forming, you'll gain an understanding of the influence of some primary metal processes on roll forming.
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A good start makes a difference: How to set the entrance guide elevation for best results in roll formingUnderstanding the relationship between the elevation of the entrance guide and the shape of the roll formed strip is crucial to satisfactory roll forming. The entance guide elevation, if improperly set, can cause the strip to bow and twist as it leaves the first forming pass. Setting the elevation properly can help to eliminate additional stress and strain at the strip edges that cause bow and twist.
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Thermal spray safety and OSHA compliance: Protecting operators from ultraviolet light, fumes, dust, compressed air, gasesOSHA has regulations for both facets of thermal spray environment, and shops should be aware of some practical safety tips for how to comply with those regulations.
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How to avoid getting burned by hot work: Preventing losses and insuring safetyMaintaining a safe work environment in facilities in which hot work, such as welding, is done can be easier said than done. Measures such as preventive safety, safety zones, and fire watches can keep employees safe and worker's comp time down
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Stamp of Approval: Full-court press safety: How to maintain an effective safety program end to endIf you want a safe press operation, look beyond the machinery. Don't be surprised to find the keys to a good safety program well outside the confines of the pressroom.
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A breath of fresh air: ArrayArray
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Dressing for success and other welding safety tipsWhether we are attending a social occasion or dressing for the job, we all give some thought about what we are going to wear.
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Protecting yourself from gases and fumes: 10 tips for healthier lungsWelding gases, fumes, and smoke can cause both short-term and long-term health hazards for welders. Presented here are 10 ways to help ensure welders are kept safe.
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One system does not fit all: Ventilation equipment becomes more specific to improve the welding environmentVentilation systems come in a variety of types for different types of welding processes and varying fabrication facility setups. The emphasis on proper application of these systems and best use of the components used in them comes from an increased interest in cleaner air for the welder.
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Respirator selection as a business decision: How to choose the right equipment for your weldersSeveral technical articles have addressed respiratory diseases associated with welding activities and when a respirator should be used to help prevent these diseases. Once an employer concludes that respiratory protection is the appropriate option for a particular application, the next step is selecting the right respirator.
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A breath of fresh air - Taking a look at in-plant filtration systems: Taking a look at in-plant filtration systemsThe article explains how to carry out a facility and process evaluation and discusses the basics of in-plant air filtration system selection.
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Maximizing your scrap's value: Diligence in preparation and tracking pays offThe more uniform and contaminant-free that scrap is when fabricators provide it to recyclers, the more fabricators can benefit. This article addresses the two principles for selling scrap to recyclers: know what you're selling vs. what you're getting paid for, and incorporate sorting & cleaning into your production stream.
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Building a better business model: Strategic planning basics for automotive stampers to improve profitJust what is a strategic business model, and how can it be developed and used by an automotive stamping supplier wanting to boost its bottom line?
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Managers are not necessarily leadersOften we are told that leadership is the key to the success of any business or organization. What is leadership? Is it the same as management? And whatseparates would-be or so-so leaders from world-class leaders?
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Pushing plate processing productivity: To speed up fabricating efforts, remove time wasteProductivity increases when manufacturing processes are executed as quickly as possible. Maximizing productivity also means minimizing the nonproductive segments of the manufacturing cycle. When all the time associated with manufacturing—the fabricating process itself, non-process in-cycle time, out of cycle waiting time, downtime, and secondary operations—is minimized that productivity is maximized.
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Beating 'world' pricing: Nu-Way Industries finds the formula to take on competition from ChinaDuring the depths of the manufacturing slowdown that has cost the fabricated metal products sector nearly 300,000 jobs since 2000, Steven Southwell, president of Des Plaines, Ill.-based Nu-Way Industries Inc., faced a depressing challenge from one of his multinational OEM customers??either meet the ??total cost of acquisition? achieved in China or purchase the part from the Chinese supplier, inventory it, and incorporate it into the family of parts supplied by Nu-Way.
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A most excellent fabricator: Pride, passion, and perseverance—these p's help separate BEGNEAUD Manufacturing Inc. from the rest of the podA South Louisiana fabricator believes success in his fabricating endeavors involves a pride in workmanship, a passion in the craft, and perseverance in being the best. After 11 building expansions, Don Begneaud can say he has found a winning business philosophy.
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'It's gonna be painful' Metal industry players note little to reassure them in days aheadManufacturers were hurting before September. How do things look now? Well ... they could be better, industry players say.
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An industry perspective: Good news (productivity), bad news (poor supply chain management)On the positive side, job shops continue to be innovative and improve productivity; materials and software are improving; entry-level positions normally can be filled.
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Pinpointing future laser welding marketsAficionados of laser welding technology at times must feel a little like telephone vendors beamed back to 1603. They know almost everyone is going to use them in the future, but getting buy-in today can be like hawking loans at 25 percent-lots of interest and few takers.
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March for manufacturingAs the "jobless" recovery continues, the job cleansing of the U.S. manufacturing base tops 2.7 million. These millions now without jobs remain faceless, statistical footnotes to mainstream media reports about how the recession ended in 2001, production is on the rise, and how job losses are singularly attributable to productivity gains. The outsourcing of the American dream for small manufacturers proceeds unabated.
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Meeting ISO 14001 requirements: Leveraging advanced forming lubricant technologyAs of July 2003 all 5,000-plus Ford Motor Company suppliers were required to be ISO 14001-certified. In 2002 General Motors required all of its suppliers to implement environmental management systems (EMS) that conform to ISO 14001. The trend will continue for the auto industry and others.
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Competing in the global arena |
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Changing the way they do business: Bridge, structural fabricators have to think about process choicesDealing with work loads, delivery schedules, and many other responsibilities doesn't leave managers with much time to consider factors that justify equipment improvements.
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Overcoming the skilled labor shortageThe labor force of tomorrow needs to embrace manufacturing today if the industry is going to attract and keep the workers it needs in the future.
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Inspecting for and correcting coil reel damageWritten in a question-and-answer format, this article offers tips for inspecting and correcting damage to coil reels. Descriptions of several tests are offered, including arbor or reel runout, lost motion, final indicator, and segments straightness tests. Frequently encountered problems such as coilers that break constantly, telescoping coils, and marred material are also addressed.
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Protecting surface-sensitive materials in coil processing: ArrayArray
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Flatness in coil processing operations: New turns in the leveling processMost flat-rolled coil processing operations use some sort of roller leveling technology. Operations people understand what these machines can do to improve the quality of the product they produce. In the competitive marketplace, customers demand and get more that just flat sheets or slit coils.
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Finding the best splice for your light-duty conveyor: The mechanical fastener optionOne way to increase your stamping operation's productivity is to get all the uptime you can from the belt conveyors that carry materials, parts, and finished and packaged products throughout your plant. As moving, wearing equipment, conveyors naturally demand a certain amount of downtime for maintenance and parts replacement. However, keeping those events as infrequent and brief as possible is what uptime is all about.
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Protecting surface-sensitive materials in coil processing - Three potential danger areasAs manufacturers worldwide strive to reduce costs and streamline their production processes, the market for surface-sensitive materials continues to expand. Surface-sensitive materials include all prepainted steel products and nonferrous decorative materials, such as copper, brass, and stainless steel.
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Handling the RushThink delicate: an antique vase, velvet gloves, the sweet sound of string music.Then imagine a typical stamping operation: bam-bam, metal on metal, all day long.
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Contract stamper increases die life and draw die productivity: Link-drive presses, value-added services, and employee initiative keep the company competitive |
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Metal stamping and electromagnetic forming: New process improves material formability, reduces wrinklingThis article describes the development of electromagnetic forming (EMF) and how EMF works.
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Exploring upgrades in stamping presses: The top 10 improvements in the past 50 yearsThe years have brought a host of improvements to stamping presses as technology has made presses more efficient, safer, and easier to use.
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The importance of the n value in sheet formingStrain hardening is represented by the exponent n in the flow stress equation, which approximates the relation between true stress and true strain during plastic deformation of a metal. The constant n plays a crucial role in sheet metal forming, and this brief article describes its effects.
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Meet the Press: Deciding when to consider hydraulic power for your stamping operationThe article briefly covers stamping terms and discusses press considerations for those purchasing a hydraulic blanking, stamping, or deep drawing press.
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Experimenting with flexible blank holder force control: Prototype shows promise for difficult-to-form materialsThe quality of deep drawn sheet metal products is determined largely by the rate at which a sheet is drawn into a die. Varying blank holder force (BHF) as a function of time or the press stroke is of great importance.
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Robotic press tending: vailable equipment and its effects on press productivityRobots offer an alternative to automatic transfer presses in applications in which parts must be reoriented (tilted, rotated, or flipped) as they are moved between operations. When selecting a robot for press tending, three of the many features to be considered are size, flexibility, and mountion options.
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Auto industry demands shape the future of stampingAs the stamping industry heads into a new century, it continues to be driven primarily by the automotive industry.
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Troubleshooting your stamping operationA common thread runs through all effective troubleshooting approaches: the skill of observation. Learn to use it to your advantage.
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Increasing stamping press productivity in the appliance industry: Advances in press technology and materials leave their markAn appliance plant with 80 to 100 presses in opeation is likely to buy new presses regularly. Under these circumstances, it makes good sense to pursue aggressive productivity goals inch by inch through steady advances in such prosaic concerns as machiner ergonomics, prventive maintenance, tooling efficiency, and material quality.
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Appliance industry takes a shine to powder blank technologyAmong European, Pacific Rim, and U.S. appliance makers and other manufacturers with large-scale, appliance-grade finishing requirements, the use of powder blank line coating systems has grown steadily during the past 10 years.
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Dieless NC formingDieless NC forming or incremental sheet forming is a numerically controlled incremental process that can produce complex shapes from various materials. The process is based on localized plastic deformation in the sheet metal blank. It was developed as an alternative manufacturing method to prototype sheet metal stampings and produce panels in small lot sizes.
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Designing high-strength steel stamped parts for formabilityThe use of high-strength steel to manufacture automobiles and other transportation vehicles has increased dramatically. The material's strength allows manufacturers to reduce vehicle weight substantially and increase fuel efficiency, without sacrificing performance.
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Stamping 101: Chicago-area training facility offers a hands-on educationTo promote real-world stamping training, the Tooling & Manufacturing Association (TMA) wanted to create a resource whereby stampers could receive a consistent, recognized, hands-on education on the industry's most current equipment.
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Predicting springback in air bending, straight flangingAll businesses tied to the metal forming industry are scrambling to find areas in which they can lower costs without sacrificing quality. Adding to this burden are a tight cash flow and a lack of financial resources to invest in process improvement equipment. Therefore, the savings must come from doing more with less.
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Advanced lubricant technology for high-strength steel |
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Advanced lubricants improve high-strength steel forming: New data uncovers measured results |
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Key design principles for successful deep drawingSuccessful deep drawing depends on many factors. Ignoring even one of them during die design and build can prove disastrous.
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Know your bending basics—Part 1Knowing how metal bends and what factors come into play during bending -- especially wipe bending—can make a positive difference in your stamping operation.
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Forming high-strength materialsVarious shape defects can be encountered in flat-rolled ferrous and nonferrous strip. Knowing their mechanics and origins and how to correct them can be very useful in times of need.
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Controlling flow and obtaining stretch in deep draw operationsAddressing the difficulties in obtaining a wrinkle-free stamped part requires a good understanding of metal flow and how it is affected by draw beads
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Measuring Lubricants' Impact on Metal FormabilityToday more than ever, the metal forming industry is economically challenged. Everyone is scrambling to find new ways to lower process costs without sacrificing quality. In the case of metal formability, a lot is at stake. With metal prices and operating overhead continuing to rise, any downtime or wasted material significantly impacts the bottom line.
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Cryogenics—Putting the Freeze on Wear Answering Some Commonly Asked QuestionsWhile cryogenics has been around for awhile, alot of shops don't know how to use the process to their advantage. Knowing a few basics may help your shop turn that around.
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Die Design for flat parts: Achieving perfection in a difficult taskFlatness is one of the most difficult part characteristics to achieve in a conventional stamping die.
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Part nesting and die design tips for reducing and utilizing scrap in stamping operationsYou might be able to gain a competitive edge by learning how to reduce the amount of engineered scrap, or that material that was inteded to be scrap rather than scrap created because of defective piece parts.
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Rising expectations spark new approach to draw die development: Reconciling demands for increased quality at lower costsA recently formulated approach to draw die development incorporates simultaneous engineering to identify and address potential problems before dies are built.
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Cutting die-related costs: Where to look to save moneyDemands for cheaper, better, and faster tooling for stampings and the pace of business continue to escalate. This trend is not going to reverse itself.
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Establishing a die setup recipe for progressive diesSetting up a stamping die is one of the most critical steps in a successful stamping process. It's a fact: More damage is done to a die, especially a progressive die, in the first 10 hits than in the next 10,000 hits. Most die damage happens during initial setup, when the material is being fed into the die. Mistakes such as misfeeds, pilot piercing, double metal, sheared cutting sections, and stock hang-ups often occur.
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Applying and handling die lubricants: How to control lubricants for better housekeepingThe two main reasons for applying die lubricant are to reduce friction and dissipate heat. Heat can build up between the tool surface and metal, causing the lubricant to break down. This results in metal-to-metal contact and galling.
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Tooling tricks of the trade: A few tips for extending die life |
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Taking an integrated build approach to stamping tool tryoutMarket pressures to reduce tooling costs are pressing the tool and die industry to seek lower-cost tooling solutions. This column discusses different build approaches and the merits of an integrated build for trying out stamping dies (and molds) as part of the manufacturing validation process.
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Improving blank edge conditionsA blank, stamped in the first station of a progressive stamping operation, usually is subject to subsequent forming processes to form a designated part. If the blank is subject to straining, deformation, bending, stretching, or lateral expansion in later stations, its edge condition should be carefully examined.
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Toolmaker tricksIt is not unusual for me to perform a few magic tricks when holding a conference on stamping die drawing, troubleshooting, or processing. Later on, I may disclose the magicbehind the trick. I do this for a couple of reasons: first, to entertain the conference attendees, and second, to show them that there is no such thing as magic, only physics.
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Die geometry for embossing and stretchingStretching or embossing, not to be confused with drawing, is the process in which the part's geometry is obtained by stretching the metal into a forming cavity.
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Investing in lubricants: Increasing your profits 7 percent by changing metalsAll businesses tied to the metal forming industry are scrambling to find areas in which they can lower costs without sacrificing quality. Adding to this burden are a tight cash flow and a lack of financial resources to invest in process improvement equipment. Therefore, the savings must come from doing more with less.
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Controlling bend anglesBend angles are among the most frustrating geometric features to control in metal stamping. This is due primarily to two factors – the inconsistency of the mechanical properties in the metal being bent and the die design.
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Selecting a pressure system for a stamping dieAuthor's Note: Before I begin, I would like to take this opportunity to express my sincere thanks to thefabricator.com's readers. I hope you have enjoyed the stamping articles, and I am excited about writing for 2004. I also would like to wish all of you a great holiday season as well as a prosperous and successful year. Best holiday wishes!Art
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Gaining from friction and formability data: Beating rising steel prices and offshore competitionAs steel prices rise and offshore competition increases daily, steel and overhead optimization are driving U.S. metal stamping and forming companies. Companies that survive and thrive are taking a different approach to managing change and cost and are discovering savings in areas never seriously considered before.
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Selecting a stamping die pressure system, Part II |
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Magnetic pulse welding for tubular applications: Discovering new technology for welding conductive materialsA review of how magnetic pulse welding works, in what applications it can be used, and what considerations users must take to perform it properly.
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Focusing on tube cutting lasers: Tube fabricators, producers see the lightState-of-the-art laser technology for cutting metal tubes includes capabilities for cutoff, beveling, and cutting an infinite variety of shapes such as holes, slots, and notches. In this article, manufacturers of laser cutting equipment discuss the state of advancements such as automated loading and unloading of parts; simplified programming; automatedinspection of finished parts; and lights-out operation.
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Batter up! Turning an aluminum tube into a baseball batThe roar of the crowd, the shouts of the umpire, the crack of the bat hitting the ball—these are the unmistakable sounds of a baseball game. Over the last few decades, however, one of those sounds has changed; now the bat tends to make a ping that resonates when it hits the ball. It's the sound of aluminum rather than wood making contact with the ball.
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Pour me a mandrel: Bending tubes, pipes, and other forms with low-melting-point alloysTo reduce weight and cost for all types of products, design engineers often specify tubes and pipes with thinner walls instead of the previously used heavier-walled tubes and pipes. Shorter tube or pipe lengths also achieve the same objectives, but usually they require sharper or more complex bends. These designs make the tube bender's task more difficult.
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The wrinkle-wiper for tube bends: How to choose and use wiper diesA wiper die is a piece of tooling used in tube bending that helps keep the bend from wrinkling. While there are many reasons and ways to use a wiper die in a tube bending maching, you should also know what types are available, their differences, and how to choose the right one for your application.
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Getting a handle on work-related hand injuriesThe hand is one of the most complex parts of your body. It enables you to execute simple or complex jobs that cannot be performed by any other part of the body. Without your hands, it would be extremely difficult to do even those routine tasks that we take for granted every day.
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Using finite element analysis to roll-form tubesRoll forming is a common method for producing steel tubes. It is a continuous process in which a strip is guided through several sets of rolls that form the strip into the desired shape. After the final shape is achieved, tube edges are welded together to form a closed section. After the welding operation, the tube is sized through another set of rolls to obtain the required diameter.
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Using a gel-type tube lube: Manufacturer decreases waste, improves lubrication |
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Structural tube on campus: Aluminum bridge spans science departmentsCentral Washington University in Ellensburg, Wash., is known for its strong science programs. "Flying Bridge," a structure designed by artist and sculptor Ed Carpenter, physically and metaphorically spans the biology and chemistry departments in the university's new Dean Science Building. Carpenter, who designed the bridge with engineering consultation from Peterson Structural Engineers Inc., teamed up with Albina Pipe Bending Co. Inc. to tackle the project's material bending and fabrication requirements.
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Low-tech system mechanizes pipe welding: Backing device allows GMAW on open rootWelding technology has changed dramatically over the last few decades. Although skilled welders always will be needed in manufacturing, mechanical welding devices can provide improvements over manual welding in terms of repeatability and throughput.
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Managing rotary-draw tube bending: Best practices minimize variation and downtimeEditor's Note: This article is adapted from a conference presentation made by the author at a previous TPJ Symposium.
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Producing quality ASTM A249 and ASME SA 249 pressure tubesDetails are everything when you're manufacturing stainless steel pipe to exacting specifications.
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Making seamless tubing with a floating mandrel mill |
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Achieving faster, more efficient tube mill changeoversTube mill changeovers involve more than just tooling. Several variables
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Solving Problems on the Tube MillTube mill operators face a variety of challenges everyday in their efforts to produce high-quality tubing in a cost effective and productive way.
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Laser welding of stainless pressure tubesNot all laser welded tubes are created equal. Know what to look for in the final product to ensure that you're buying quality and not just an imposter.
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Managing environmental risk in tube, pipe production: What you need to know about state and federal regulations |
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Measuring wall thickness in seamless tube, cast-iron pipe: Lasers meet ultrasonics |
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Cutting to the chase: ArrayArray
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Structural adhesives form strong bond with signage: 10 questions about joining metal to metal, metal to plasticsSign-makers have long sought a way to improve durability and aesthetics and reduce the labor-intensive steps associated with welding, taping, and fastening. Today's adhesives can structurally bond metals to plastics with unique design, production and costs benefits, thereby making them an alternative to welding and mechanical fasteners for sign industry fabrication.
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Choosing a GMAW machine for occasional aluminum welding |
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GMAW vs. FCAW for beginners: Choose the best process for your small operationThere are several pros and cons to using the gas metal arc welding process versus the flux cored arc welding process in compact applications.
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Considering the benefits of pulse spray transfer GMAW |
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Advantages of plasma welding: Often-overlooked PAW offers speed and affordabilityPlasma arc welding sometimes offers greater welding speed than gas tungsten arc welding at lower cost than laser beam welding.
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Secrets of Using GTAW for Tools and Dies: One retired fabricator share the basics of how he added this services to his shopTool and die welding can be a very lucrative service for a fab shop. However, tool and die welders are about as rare as brain surgeons because of a general lack of knowledge about the process and because of the extra expense it brings to a shop. This article offers a basic understanding of what's needed to add this service to your fab shop.
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It's all about precision, craftsmanship: Shop makes commitment to solid welding practicesA case study looking at how Superior Joining Technologies Inc. got into the microwelding business, the welding equipment they use, how the meet customer requirements, and how they use a solid foundation in welding to keep up with today's stringent requirements.
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Gun Control: GTAW torch design innovations enhance productivity, qualityThis article discusses improvements to the GTAW torch that should enhance the productivity and quality of welding operations. It specifically discusses the welding gun's affect on ergonomics and cooling capacity.
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Examining the GTAW environment: Choosing the right electrode and booth for your applicationThe author outlines basic components of a welding booth suitable for GTAW, and offers possible solutions to a decline in availability of the thoriated tungsten used in a GTAW electrode. He also offers ideas for providing a clean air supply for the GTAW operator.
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Joining aluminum with GTAW: Advice for the noviceAluminum is a real challenge to weld, especially for beginners. A knowledge of the gas tungsten arc welding equipment that is available to do the job as well as required accessories, preparation tips, and proper techniques is a good thing to have before jumping in.
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The fundamentals of gas tungsten arc welding: Preparation, consumables, and equipment necessary for the processLearning the fundamentals of the GTAW process will increase the welder's ability to produce quality weldments. Knowing the correct consumables, equipment, and preweld preparation necessary will help the welder troubleshoot welding problems.
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Using inverter technology: FAQs about inverter-based plasma cuttersBusinesses feel a constant pressure to gain an advantage and control their processes better. However, the decision to embrace new technology often leaves them feeling vulnerable. In the realm of hand-held metal cutting operations, one such decision is choosing between traditional technology and an inverter-based plasma cutting system.
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Mastering the art of welding—it's all about proper technique |
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Choosing the right oxyfuel gas and supply systemMixing oxygen with fuel gases for brazing, cutting, heating, and welding metal has been around since the early 1900s. Oxyfuel processes have remained in use over the years despite the introduction of other metal fabrication processes, such as arc welding, plasma cutting, and laser materials processing. Finding the most economical method for supplying oxyfuel gases requires a basic understanding of the process.
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The history of welding according to MartyThis is a welding history synopsis, as seen by me. If you are a history or English professor, you might want to stop reading at this point; it ain't gonna be pretty.
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Getting the best results in gas-shielded FCAW: Filler metals play a crucial role in the process |
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Titanium—You can weld it! |
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Arc Welding 101: ArrayI am building a 400-gallon paint tank and I'm having trouble with leaks when using gas metal arc welding (GMAW).
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Arc Welding 101 - Paint tank troubles: Paint tank troublesI am building a 400-gallon paint tank and I'm having trouble with leaks when using gas metal arc welding (GMAW).
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Whale watching: A doctor's love of whales leads to a complex welding projectMetal artist James Berry constructed a large whale display by making healthy use of Gas Metal Arc Welding. Here's how he did it, and why.
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It happens 'under the hood': Chicago-area builder of water gardens becomes sculptorRick Walsh isn't your typical artisan, nor are his works typical welding pieces. But his personal evolution as both an artist and a welder illustrate the innovation and persistence of any successful welding operation.
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Reviving the past: Welding students restore ironwork to Victorian-era YMCA building |
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Riding on the cusp of something great: When Colorado artist's career hits plateaus, he climbs themKevin Robb's sculptures seem to defy gravity, arrest time, encroach space. Each sculpture is a moment freeze-framed; each element seems to be impossibly suspended.
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Found art: Welding artist finds inspiration in industrial, natural formsWatching the sparks fly as his dad welded a temperamental posthole digger mesmerized Derek Arnold. "I found the immediacy of something so permanent absolutely fascinating," he said. "I knew I wanted to weld."A hands-on welding education on the family farm drove Arnold to take his skills and creativity to the next level. In 1993 he graduated from the Maryland Institute College of Art in Baltimore. "I've been welding regularly since my freshman sculpture class," he said.
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Washington women weld at the 'Y': Students learn by doing in their community |
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Metal Art Takes on the Fireplace: Jim Truett’s custom fireplace screens are both functional and beautifulMetal art takes on many forms, from wall hangings to picture frames to fireplace screens. Just ask Jim Truett, a district sales manager for Miller Electric Mfg. Co. by day and artist in his spare time from his Huntsville, Utah, home.
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Entry arch and gates based on history use modern technologies |
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Not your average museum—a metal art mecca |
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Welding aluminum tailored blanks with Nd:YAG lasers for automotive applicationsThe increased average power at the workpiece delivered by a 4-kilowatt, continuous-wave Nd:YAG laser source can be used for tailored blank welding of aluminum alloys
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How to Kill a Robotic Project in Five Easy StepsHow would you like to fail utterly in your quest to modernize your shop with robotic weldingequipment? Look no further—we've got all the bad advice you need right here.
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Is robotic welding right for you?: Making an informed decisionThis article examines robotic welding and discusses the considerations behind choosing to use (or not use) welding robots. It answers the questions what comprises a robotic welding installation, what costs are associated, and what industries are best suited for robotic welding.
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Making the most of the daily grind: How to choose and use abrasives for welding and fabricating applicationsThe article divides grinding equipment into three application categories: welding/heavy metal removal; metal fabrication and construction; and light metal removal, finishing, and sharpening. It also discusses grits and grains and operator safety.
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Which wire do you require?: How to select a gas-shielded welding electrodeAre you looking for ways to improve quality, raise productivity, and save costs in your current welding operations? If you haven't examined the various electrode choices, you could be missing an opportunity to take your production welding to the next level.
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Selecting a shielding gas for joining stainless steel: The right choice is critical for success |
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Producing side-impact profiles: Automotive body part combines roll forming, punching, laser weldingThe ramming machine bores into the side of the new automobile at a speed of 50 kilometers (31 miles) per hour. Within a fraction of a second, sensors situated all over the test dummy signal details of the stress load. Shortly afterward the overall results of the Euro-NCAP crash test will appear in all the specialized automobile magazines.
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Understanding weld discontinuities |
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What you don't know about spot welding: Some lesser-known uses of resistance welding equipmentResistance welding equipment has many uses that many people often don't think about. Everyday items that some may not associate with resistance welding owe their very existence to this versatile process.
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Design tips for sheet metal: Bend relief, small holes, hole distortion near bends, and minimum flange widthsThe article discusses making small holes and when to use a punch or laser cutter, inside radius measurements and how they differ depending on whether you are coining or air bending on a press brake, and adding bend relief to prevent tearing material.
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Selecting a new press brakeProspective buyers of press brakes are advised to consider their purchase in terms of its end use, the amount of deflection likely to occur in a give machine, the inside radius of their parts, and several other factors before speding their money.
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The Brakes: Press Brakes and You -- Preventing common mistakes on press brakesMost common mistakes made while operating press brakes can be avoided with a little diligence and awareness of where others have gone astray.
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The Brakes- Press Brakes and You -- How to get the most out of your press brakeProblems with your press brake imperil what could be the most valuable machine you have. Take pains to ensure the health of this valuable piece of equipment.
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Brake Line: Press Brakes and More: Planning to cut corners on safety?Press brake safety is a common sense issue.
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Press brakes: the quest for a happy ending: Manufacturers, users hope technology is the ticketScreen some press brake owners and manufacturers these days, and it's like they're all reading from the same script:
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Hot spots for U.S. metal fabricated exportsIncreased global competition for customers on their home turf has driven U.S. metal fabricators to throw their nets wider to international markets. With this in mind, fabricators should look at the lists of the countries purchasing the most U.S. metal fabricated tools, machinery, products, and partially assembled goods as a road map to export opportunities.
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Improving bending operations: Advanced bending technology reduces setup time, improves part accuracyThe Ottenweller Company Inc. is a heavy sheet fabricator that produces fabrications and assemblies for construction and agricultural equipment manufacturers and heavy-duty truck builders. The family-owned business employs 150 and operates from a 120,000-square-foot facility in Fort Wayne, Ind.
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Repair Brazing: Fixing Faulty Jobs and worn-out componentsBrazing has myriad uses for shop repairs. Knowing what seperates a proper brazing job from a poop one can save you alot of headaches and produce some slick results in the process.
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The challenges of laser cutting: Overcoming some common obstaclesLasers can be used to process expensive alloys as well as traditional materials such as stainless steel. However, knowing the strengths and weaknesses of laser processing is the key to determining whether or not a laser is the right choice for cutting.
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The art of laser cutting: Will recent advancements meet future challenges?Laser cutting continues to grow in popularity with sheet metal fabricators. With developments in speed, cutting quality, and manufacturing economy in laser cutting, today's manufacturers have more options than ever before from which to choose the optimal manufacturing method for their specific applications.
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Laser cell system gives job shop the home field advantageContract manufacturer CGI Automated Manufacturing Inc., Cicero, Ill., fabricates parts as an outsource resource for vertical manufacturers. The company started out as a stamping operation, then added other fabrication technologies, including welding, press brake forming, drilling, punching, rolling, shearing, and cutting.
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A breath of fresh air: ArrayArray
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