Stamping

Whether you're using a high-speed stamping press to make simple parts at breakneck speeds or doing something really tricky, like deep drawing a material that puts up a lot of resistance, the information in this technology area is sure to help. The articles, case studies, and press releases cover stamping presses, lubricants, and materials.

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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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Automotive assembly line

Preventative maintenance as a way of life

November 29, 2001

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The author relates his experience as preventive maintenance (PM) coordinator at a Big 3 automaker. The purpose of preventative maintenance is to gain control of the processes. This begins with data collection on die sets, die failure and material handling damage that will identify weak areas in the stamping process. The author's team began with one set of dies and eventually its PM program was so successful that it was implemented throughout the entire plant.

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Part nesting and die design tips for reducing and utilizing scrap in stamping operations

November 15, 2001

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You 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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Meet the Press

November 15, 2001

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The article briefly covers stamping terms and discusses press considerations for those purchasing a hydraulic blanking, stamping, or deep drawing press.

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Link drive presses

Contract stamper increases die life and draw die productivity

November 15, 2001

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Jancox Stampings has remained competitive by investing in link drive mechanical presses from PTC, offering value-added assembly services, and encouraging employee initiatives. The article discusses how the presses work and how reduced speed reduces springback (which allows the company to meet the...

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Cryogenics—Putting the Freeze on Wear Answering Some Commonly Asked Questions

October 25, 2001

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While cryogenics has been around for awhile, alot of shops don't know how to use the process to their advantage. Knowing a few basics may help your shop turn that around.

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Maxwell Magneform

Metal stamping and electromagnetic forming: New process improves material formability, reduces wrinkling

October 25, 2001

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This article describes the development of electromagnetic forming (EMF) and how EMF works.

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C-Frame Stamping Presses

Achieving straight-side capabilities in a gap-frame press

October 25, 2001

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Recent 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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Installing and maintaining coil cradles and reels

October 11, 2001

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The installation procedures that can help to prolong the life of coil cradles and reels are outlined in this article. Specific steps to maintain cradles and reels are also included.

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The importance of the n value in sheet forming

October 11, 2001

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Strain 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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Coil reel

Inspecting for and correcting coil reel damage

October 11, 2001

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Written 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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Spread center flatteners

Correcting shape problems in flat-rolled coil

October 11, 2001

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Various shape defects can be encountered in flat-rolled ferrous and nonferrous strip. Knowing their mechanics and origins and how to correct them can be very useful in times of need.

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Die design  figure 1

Die design for double bending

October 11, 2001

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Knowing how steel tends to react when it is bent in a single operation can help you do the job right the first time.

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Incorporating available technology into die design: Tools of the trade are evolving

September 17, 2001

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Designing 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.

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Designing large die sections with reparability in mind

September 17, 2001

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The article explains how EDM has been used to simplify die making as well as some design considerations for minimizing deflection during production.

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