Stamping Articles

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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Straight to the point

December 13, 2005

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The straightener, when set properly, removes the coil set, or curvature of the rolled material. If the machine is used or set incorrectly, the coil set can remain in the material, even after being struck in presses with capacities to hundreds of tons. This can cause a variety of problems: out-of-tolerance parts, difficult feed operations that can disrupt and slow performance, and, to some extent, additional wear and tear on feed line components and tooling.

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Coil feed line considerations when stamping HSS

December 13, 2005

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With its higher tensile and yield strengths, HSS is stronger at any given gauge than conventional "mild" steels. Initially, lighter-gauge HSS was used to replace heavier-gauge mild steel to reduce weight in many automotive parts, and this continues to be the most widely used application for HSS. However, as a new trend to run thicker and thicker gauges of HSS continues, stamping fabricators are evaluating their press feeding and coil handling equipment, as well as press tonnage capacities and die designs to ensure that these harder parts can be formed effectively. The dynamics of HSS have a bearing on feeding, straightening, and coil handling equipment.

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R&D Update: Evaluating dry film lubricants for automotive applications Part III

November 8, 2005

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In recent studies, dry-film lubricants have been shown to give better lubrication conditions when compared to oil-based liquid lubricants. This factor, as well as savings in the amount of lubricant used, has helped increase the use of dry-film lubricants in the automotive industry for forming of aluminum and high-strength steel stamped parts

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Die maintenance. Die repair.

November 8, 2005

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Unnecessary die repair stems from several basic shortcomings, namely poor die design, setup procedures, tool design, and maintenance techniques.

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Knockout punch

November 8, 2005

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The system Sanmina-SCI uses to produce rails for Sun Microsystems' large servers is a key factor in Sanmina-SCI's competitiveness when it comes to processing a large, heavy-gauge, complet part, delivered in large volume on an as-needed basis for computer server systems and other similar applications.

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Okay with tool coating

November 8, 2005

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"Okay Industries, New Britain, Conn., serves diverse market segments including medical, automotive, electronics, defense, and specialty industrial. The stamper produces a roller finger follower for automotive applications. There are 14 stations on the die. The TD process is used on three of them," DeVecchis said. "It has given us better product quality, less scrap, faster throughput, longer die life, and reduced die dressing."

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Quick die change and the trend toward larger presses

November 8, 2005

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Through the use of such tools as T-tables, die carts, and rolling bolster systems, stamping companies can help increase the uptime of their pressroom operations, increase levels of operational safety, and improve their bottom lines.

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Cushioning the blow

November 8, 2005

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Hercules Machine Tool & Die Co. has intalled a fully programmable hydraulic cushion onto a mechanical press in hopes that it can cut down on try-out time and attract more business involving specialty stamped parts

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Pairing the right hydraulic press with your application

October 11, 2005

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Choosing the right hydraulic press for your application is crucial. Identifying the right press capability up front can eliminate additional costs and startup delays. Four primary hydraulic press return capabilities are return on position, return on pressure, return on pressure with dwell capability, or combinations of the three. Shown is a press with return on pressure capabilities.

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Total transfer knowledge

October 11, 2005

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Transfer systems can deliver flexibility to perform a variety of tasks for current requirements, yet deliver the capability to carry the company at a competitive level over the long haul.

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Die basics 101: Part IV

October 11, 2005

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Stamping dies can comprise many components. This article discusses the basic components, including die plates, shoes, die sets, guide pins, bushings, heel blocks, heel plates, screws, dowels, and keys. This article is one of a 16-part series on the fundamentals of stamping. Descriptions of all the articles in this series, and links to them, can be found at the end of this article.

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Collaboration in the stamping industry

October 11, 2005

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What is the best way to determine the optimum combination of application, design, and costs? An effective collaborative process makes the difference. Teamwork and open communication throughout the process — from prototyping to production — ensure the best design and most efficient manufacturing process, which can save millions of dollars in large projects.

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Blanking questions have you on the edge?

October 11, 2005

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Reducing the damaging effects of fractures, burnishing, burrs, and rollover improves subsequent forming processes. The blanked edge condition can be improved by adjusting the punch and die clearance tolerance, shaving the area of the defected blanked edge, designing an appropriate contact profile of the tool and die, and understanding the mechanical properties of the sheet metal used.

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AHSS Tooling Requires Greater Protection

September 13, 2005

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Tools are subject to extreme wear during AHSS forming. Using the right lubricant can help increase tool life.

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Taking a look at automated spray control:

September 13, 2005

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Spray systems often are regarded as simple on-off valve and regulation systems. In reality, though, spray nozzles are precision components designed to yield very specific performance under specific process conditions. Just because nozzles are spraying doesn't mean that they are spraying precisely, and precision spray performance makes a difference in throughput, quality, and bottom-line profits

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