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.
|
|
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.
|
|
Selecting a table for abrasive jet machining |
|
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.
|
|
Eliminating final trim shearing of hydroformed tubeThe most common way to establish tube length after hydroforming is by cutting or shearing the tube to a specified dimension; however, cutting out this step can reduce scrap. A new method designed to eliminate this step combines forming the end of a tube to resemble its final form with using a hydroform die to correct end position variations off the bender. While this approach eliminates the final shear trim operation, it also presents new challenges.
|
|
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.
|
|
Working safety with metalworking fluids: How to protect workers from their harmful effectsThis article examines the hazards associated with metalworking fluids. Health effects, including skin and respiratory disorders and cancer, are addressed. A look at engineering and administrative controls that can be implemented to ensure the safe use of metalworking fluids is included.
|
|
Defibrillators—Should you have one in your workplace?This article explores the facts about AEDs, the legalities surrounding their use by laypersons, and guidelines for implementing an AED program in the workplace.
|
|
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.
|
|
Take control of safetyWelders are among the millions of workers who face respiratory hazards every day in the workplace. Confined spaces, solvents, and gas emissions, as well as welding, grinding, and soldering, may expose workers to airborne hazards.
|
|
Reflection—Getting the most from experienceLeaders, what have you learned about yourself, your employees, and your company in the past year? What were your business blessings? What did you learn about your leadership style or methods? What do you intend to take into the new year, and what will you leave behind?
|
|
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.
|
|
Common barricades on the road to leanThe number of opportunities to steer your company wrong during a move toward lean manufacturing are myriad. Knowing a few of the common ones may help you achieve your goals without a lot of headaches.
|
|
Overcoming organizational paralysisParalysis – what a horrible thought. What if you found yourself in a situation in which you had partial or complete loss of motion and sensation in your body?
|
|
Tuning a piano—making the most of your best resources |
|
Shedding light on negativity—Part 1 |
|
Shedding light on negativity—Part 2 |
|
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.
|
|
Pairing a servo feed with a pull-through straightener: Applications for noncosmetic stamped partsThis article explores the possibility that servo feeds can be used with pull-through straighteners as opposed to a conventional feed line that uses a powered straightener. Using the servo-PTS (pull-through straightener) can save money on equipment and material. The only limitation may be marking the material so noncosmetic applications are recommended.
|
|
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.
|
|
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.
|
|
Contract stamper increases die life and draw die productivity: Link-drive presses, value-added services, and employee initiative keep the company competitive |
|
Metal stamping and electromagnetic forming: New process improves material formability, reduces wrinklingThis article describes the development of electromagnetic forming (EMF) and how EMF works.
|
|
Hydraulic workholding from scratch: How to select and set up componentsHydraulic clamps are used in place of manual or toggle clamps to hold the workpiece or tool in place during stamping. This article examines the four steps that comprise the selection and installation of a hydraulic workholding system: cylinder selection, cylinder force and stroke, power source selection, and system connection.
|
|
Hydraulic presses make their mark |
|
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.
|
|
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.
|
|
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.
|
|
Designing progressive dies: Reviewing the basics of progressive toolingDecisions and compromises must be made when designing progressive dies to produce a part. Knowing ahead of time what this process entails just might help you.
|
|
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.
|
|
Incorporating available technology into die design: Tools of the trade are evolvingDesigning progressive dies has increasingly become a high-tech process. The more able an operation is to use computer technology, the more able it is to use the latest advances in the field in its own designs.
|
|
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.
|
|
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.
|
|
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.
|
|
Tooling tricks of the trade: A few tips for extending die life |
|
Choosing the proper steel to minimize abrasive adhesive tool wearThe most disruptive type of failure in any tooling application is when the tool cracks. To prevent this type of failure in cold-work applications, it's important to select the correct steel.
|
|
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.
|
|
Do your tubes seam good enough? Using eddy current testing to make sureEddy current testing offers several features that makers of welded tube may find to their liking—in particular, high throughput speeds and sensitive flaw detection.
|
|
Solving the mysteries of the fin pass—Part 2Editor's Note: This article is the second part of a two-part series about fin passes. Part I, which appeared in the March issue, discussed their location, what they do, and how they do it. Part II focuses on troubleshooting.
|
|
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.
|
|
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.
|
|
Art From the Forge: Finding new sources for inspirationThose of you who are busy fulfilling commissions for gates, fences, staircases, and the myriad items that keep food on the table might want to look at artwork created by people whose backgrounds are based in the arts. Metalworkers often are so tuned to traditional designs that they are unaware of a swelling modern movement that could generate new ideas, new visions, and new clients.
|
|
Automated welding for job shopsA robotic weldingsystem represents a significant capital investment for a job shop.
|
|
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
|
|
Understanding weld discontinuities |
|
Brake Line: Press Brakes and More: Planning to cut corners on safety?Press brake safety is a common sense issue.
|
|
In search of the perfect bend: Advancements in press brake angle measurement and bend springback systemsPress brake manufacturers have made tremendous advances in the art of machine design and manufacturing.
|