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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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Ensuring a plant's electrical system safety

November 29, 2001

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This article takes a look at using infrared thermography in the plant setting to detect potential fire hazards. It discusses who can provide the service, what sorts of problems it can detect, and generally explains how the problems discovered when using this technology should be handled. It also uses an actual inspection as a basis for the discussion.

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Mobilizing equipment-saving time and talent

November 29, 2001

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It's hard to believe that machines such as press brakes and hardware-setting equipment can move around on wheels or be moved by forklift and still function correctly. But I can tell you from experience that it is true and can be done.

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Hydroforming Y-shaped stainless steel exhaust components

November 29, 2001

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T-shapes and Y-shapes are the most commonly hydroformed exhaust system components for automobiles. This article reports on the investigation into the metal flow in Y-shape hydroforming by the Engineering Research Center for Net Shape Manufacturing (ERC/NSM) at The Ohio State University, which conducted several experiments using the tooling available at the SPS research center in Aalen, Germany.

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Maximizing your scrap's value

November 29, 2001

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The 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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