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Articles tagged with "sheet"
Results: 23
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Using plasma arc cutting to clean-cut stainless steel sheet and plate: Variables to considerTo clean-cut stainless steel sheet and plate, fabricators first must choose the right CNC cutting equipment and then set the correct process-related variables. Precise machine motion controls, torch-to-material distance control, and the correct plasma and assist gases all are crucial to producing weld-ready plasma-cut edges on all stainless steel thicknesses.
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Putting a spark into cutting productivity: Exploring the friction alternativeThere are many ways to cut sheet, plate, tubing, and structural shapes, ranging from a hand hacksaw to power shears and lasers.
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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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Designing a hydroforming press for research, production: Press accommodates sheet hydroformingA new type of hydroforming press was recently developed for sheet applications. The new press incorporates data acquisition and control features for research purposes. Current press frame designs for tube and sheet forming are uneconomic for large forces. This press achieves a clamping force of 100 mN, which is absorbed by a single cast frame with a circumferential pretensioning system.
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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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Stretching metal's forming limits with HSP lubricants: Forming aluminum, high-strength steel without tooling upgrade |
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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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How important is sheet and plate steel flatness?: Fabricators are specifying temper-passed, leveled steel to remove coil memoryThis article examines flatness of steel, discussing the outcome of combining temper passing and leveling in the same line. It also provides the outcomes of experimentation on steel that has been leveled, temper passed, and both. Furthermore, it gives a few real world examples of who is using this process and what they are saying about it.
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Roll formers look for a win: Industry players hope to score with customization, better technology |
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Sheet hydroforming in automotive applicationsSheet hydroforming can be used in the automotive industry for forming alloys with low formability and prototype applications, among other handy applications.
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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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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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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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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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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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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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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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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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Adaptive bending: Achieving accurate first-piece bending resultsAdaptive bending allows press brake operators to measure a bend angle during the forming process and feed the information to the numerical control. The article discusses springback and how to determine it and the fact that when air bending, 90 percent of problems result during initial setup, and only 10 percent result from springback. It also discusses using an angle control system, methods of measuring angles, and requirements for angle measurement systems.
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