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Punching tips

December 13, 2001

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The 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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Bending tube with an all-electric machine

December 13, 2001

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This 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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When sparks fly ...

December 13, 2001

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This article combines examples of fires caused by inadequate protection from welding with information on heat-resistant textiles and how they can be used to provide that protection.

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The basics of uncoiling

December 13, 2001

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A 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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Pairing a servo feed with a pull-through straightener

December 13, 2001

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This 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.

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It's all about precision, craftsmanship

December 13, 2001

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A 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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Hydraulic workholding from scratch

December 13, 2001

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Hydraulic 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.

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Radiographic and ultrasonic weld inspection

December 13, 2001

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This article outlines the differences in radiographic and ultrasonic weld inspection, the two most common methods if nondestructive testing. It gives an overview of both methods, including how they are used.

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Punch Die Stripper

Keeping pace with today's punching requirements

December 13, 2001

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This 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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Cutting through the obstacles

December 11, 2001

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Of all the materials that can be cut on industrial band saw machines, structural steels—such as pipe and tubing, plate, angle and channel iron, and I beams—are all among the most common and challenging.

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Fabricating precision parts for automobiles

November 29, 2001

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The Association of Southeast Nations (ASEAN) trade ministers have agree to move ahead with a closer economic partnership with Australia and New Zealand as an initiative amid the global economic slowdown. This article describes how some Malaysian companies are addressing productivity and cost issues.

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Making the most of the daily grind

November 29, 2001

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The 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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Designing presses and dies with FEA

November 29, 2001

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To develop or find a new tool and perhaps a new press to make a part, managers need information about the tonnage requirement, which mean they will need to know more about how the part will form and the loads it will impart into the press and tooling also. Linear or nonlinear finite element analysis (FEA) can find the information so managers can make an informed decision. With FEA, a fabricator uses a computer-aided design system to develop a model of the part, and then the computer divides the part into many small parts. The FEA software then applies standard stress analysis equations to each side of every part.

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Gettin' down with downtime

November 29, 2001

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Reducing 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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Using existing tooling for new product applications

November 29, 2001

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The 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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