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Articles tagged with "speed"
Results: 69
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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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Band saw cutting of tube and pipe: Tips for blade selection and machine settingsProduction quantities of cut tube and pipe can be produced economically with a band saw. However, the choice of which blade to use is very important in maintaining a low cost per cut.
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Cutting exotic alloys: Circular saw helps shop land aircraft tubing projectCutting tubing with a circular cutoff saw is a common metal fabrication operation. This type of saw can produce a smooth finish that requires little secondary finishing.
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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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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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Not your father's abrasive jet: Technological advances, attention to common woes give fabricators options for precision cuttingThe advances made in abrasive jet cutting in recent years have negated much of the downside formerly associated with the technology.
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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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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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The importance of storage planningMaterial and equipment storage can be a major concern for fabricators. Therefore, it is important to establish the purpose of a storage system and understand clearly what it needs to accomplish.
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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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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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Six dangerous misconceptions about crane safety: Knowing the facts could save your lifeKnowing how cranes should be used, and how they should not be used, is critical to crane safety. Overload, side pull, limit switches, secondary braking devices, using the reverse direction for speed control, and daily inspections are surrounded by myth and mystery in the workplace.
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Tips on Lean Manufacturing: Mastering the stop 'n' go of your shop's work flowMastering the flow of work through your shop is your most important taks if you are attempting Toyota's approach to lean manufacturing.
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Looking to the future: Steel supplier designs facility based on regional current, future needsA growing manufacturing base in the Southeast spurred Thompson Steel in the mid-1990s to research what type of equipment to purchase for its new facility in Fountain Inn, S.C. The steel supplier had been shipping coils of slit steel from its plants in Baltimore; Franklin Park, Ill.; and Rome, Ga., almost daily to several customers in the area.
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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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The basics of uncoiling: A review of standard equipmentA review of the basic components of a coil handling system which covers servo drive roll feeds, cradles and reels, straighteners and combination units.
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High-Speed Feeding Techniques - Reviewing the Facotrs that Affect Process SpeedsGripper or roll-type feeds operate on the principle of feeding force, which is a product of the coefficient of friction between the grippers or feed rolls and the material being fed. Reviewing each force as a factor of the feeding equipment or feeding conditions helps in evaluating the feeding process.
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Examining press feeding options: Considerations that determine a feed's effectivenessPress- and servo-driven roll feeds and gripper feeds are almost as common to the stamping industry as sheet metal and dies. Knowing how to use them effectively may not be so common.
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Maximizing a coil fed press: Variables that influence production speed, setupCoil-fed stamping presses are nothing new, but coil feeding processes have changed a lot since the days when press feeders were driven mechanically by crank motion. Influencing these processes are differences between transfer and progressive tooling.
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Appliancemaker reduces downtime with stamping press feed system: Inconsistent feeds caused die jams, inconsistent partsThe Whirlpool Co. builds refrigerators at its facility in Fort Smith, Ark. The company stamps the appliance parts—large and small, galvanized, cold-rolled, and aluminum—on approximately 35 presses. The majority of its stamping presses are straight-side machines, although some are open-back inclinable (OBI), and a few are hydraulic.
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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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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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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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Standardizing finger tooling: Modular systems provide alternative to dedicated transfer toolingModular, adjustable, articulated finger tooling for transfer presses may provide the flexibility you need to increase productivity and efficiency in your stamping operation.
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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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Taking the heat, keeping the current: Heat sinks provide thermal conductivity, electrical isolation |
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Virtual tryout: Simulation software simplifies progressive die troubleshooting |
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High-tech presses: Servo technology meets mechanical presses |
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Using Monitoring Systems to Improve Stamping 'Batting Average'What do baseball players, weather forecasters, and typical stamping plants have in common? Most are less than 60 percent effective.
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Achieving straight-side capabilities in a gap-frame press: New developments in motion and frame technologyRecent changes in tooling technologies, material specifications, part quality requirements, and inventory levels have driven the demand for new developments in the way a mechanical press operates. This article discusses how link motion and bridge-frame structures help stampers. This includes a description of what link motion is and how it works, and how bridge frame presses affect frame deflection.
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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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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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Gettin' down with downtime: Reducing unprofitable die changeover timeReducing the time it takes to change dies it important to all stampers, especially for custom stampers that run small-quantity jobs. This article summarizes the ways in which automation has helped in this process and then covers two die change methods that are used in a quick change system: the standardized clamping system and the V-notch, or key, system.
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Resisting cracking, deformation, and premature wear: Powder metallurgical steels provide an alternative to conventional tool steelsWant to know how powder metallurgical tool steels are produced and how their properties provide the material's toughness and wear resistance? Read on.
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Protecting dies against press system faultsThe need for die protection has existed ever since the first die was produced. The most elementary form of protection has always been an alert, dependable operator. However, an operator cannot always react to a problem before it damages a die.
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Bending tube with an all-electric machine: Characteristics and capabilitiesThis article discusses the ins and outs of all-electric tube bending machines, discussing the challenges, performance characteristics, and typical options of all-electric benders.
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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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Cutting tube in a recut operation: How to decide on a method and equipmentThis piece, which originally appeared in TPJ-The Tube & Pipe Journal in 1997, explains how to decide whether to cut tubing on the production line or cut it later in a recut operation. Discusses various types of recutting equipment and focuses on the dual-blade shear cutting method.
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The growing use of orbital tube welding: Quality, repeatability, and documentation drive the technologyAlthough orbital tube welding has been used in aerospace, semiconductor, and other high-purity applications for a long time, general industrial markets just now are beginning to view it as a viable and economical option for joining stainless steel tubing.
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Choosing the right robotic weld cell for your operationYour company's first robot may cause more trouble than expected. This doesn't mean that the robot will not work, but it is a piece of
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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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Flying high with orbital welding: Equipment, applications, and joint designs for aerospace componentsOrbital welding first was developed in the late 1960s by a group of engineers from McDonnell Douglas to join aerospace tubes. These engineers were aware of the problems associated with producing repeatable welds for their critical applications.
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Increasing tube mill welding speed: Examining technology for tube producersThis article reviews processes that were technological advances in tube welding years ago but still have a bearing on how tube producers do their jobs today.
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Skiving strip edges for tube and pipe producing: New equipment developments address coil preparation challengesEdge treatment of coil strip before it enters a tube and pipe mill, called skiving, is a rapidly advancing technology. Improving the coil edge before it is welded helps increase the quality of the seam join and helps prevent rejected tube or pipe.
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Achieving faster, more efficient tube mill changeoversTube mill changeovers involve more than just tooling. Several variables
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Exploring the welded tube making process: The basics for fabricatorsThis article is aimed not at tube producers, but at fabricators of tubing, to provide an overview of the process.
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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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Using existing tooling for new product applications: Evaluating the tooling's capabilities and limitationsThe article outlines factors for consideration when changing material type, grade, coatings, efficient speed requirements, specialty shapes, etc. Special consideration is given to the difference in speed between the minor relief angle and the root diameter.
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Comparing single-cut and dimple-free tube mill cutoffs: When to employ each systemThis article covers the application of single-cut and dimple-free cutoff shear technologies as they are applied to contemporary high-speed tube mills.
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Inline gauge control in welded tube production: Reducing conversion lossesReducing scrap when converting strip to finished tube is a huge step in bettering your bottom line.
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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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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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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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Getting the best results in gas-shielded FCAW: Filler metals play a crucial role in the process |
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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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Designing for successful robotic arc welding automationFor a fabricator to enjoy the benefits afforded by a robotic welding system, the parts to be welded and the system itself must be designed properly.
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Robotic arc welding gets smart in real time: Immediacy of information can benefit shop floorsWhether you're dealing with low part counts or wild welding variables or the challenges of just-in-time production, monitoring software can help smooth your operation.
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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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Shielding gas consumption efficiency-- Part I: Spend a penny, save a dollarInstalling a bulk delivery system in your welding shop is perhaps the best way to save money
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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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Spinning your wheels?: Separate grinding wheel facts from mythsGrinding wheels used in welding and fabrication are strong, tough tools, but many in the industry have called them "rocks" or "stones," implying that they're unbreakable.
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Four factors to consider when purchasing a grinder: You get what you pay forCost often is a deciding factor when you purchase a grinder. However, the saying "you get what you pay for" can be true when you're talking about tools. The price tag alone doesn't always reflect some of the more important factors--performance level, cost to operate, and tool life--that make a grinder worth its cost.
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Three optional techniques for beveling: Understanding the advantages and drawbacks of eachMany fabricators use standard plasma cutters and abrasives to create beveled edges. Along with these traditional methods, welders also have the option of using three alternative beveling techniques: punch and nibble, peeling and shearing, and milling and routing. Each has advantages and drawbacks.
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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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Job shop reduces costs, improves laser's output: Laser regulator minimizes gas contaminationToday's job shop market is characterized by unrelenting competitive pressure for laser processing services. Job shops are expanding into niche services such as multiaxis laser processing and thick plate applications to differentiate themselves from their competitors. Others are performing additional services such as forming, welding, painting, and assembly to add value.
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The business of lasersAs we all know, the laser industry has seen easier times. Economic and market pressures have changed the competitive landscape for laser cutting equipment, and the changes are likely to continue. Both lasermakers and laser users need to adapt to the changes in the laser market, and the companies that recognize and adapt first are likely to be those that succeed.
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Cutting through five myths about modern lasers: The truth behind laser cutting technologyWhether you're operating a 10-year-old laser machine or evaluating the purchase of a new one, staying up-to-date on current laser cutting technology and techniques can be the key to maintaining a competitive edge.
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