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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Regaining flatness in stamped parts

December 7, 2004

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Of all the geometric tolerances that are difficult to achieve, flatness is one of the hardest. Most stampers probably would much rather try to make a complex-shaped, thin, high-strength steel deep-drawn part than hold a small-tolerance part requiring a tight flatness.Achieving part flatness is a...

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High-performance coating helps stamper fight downtime

December 7, 2004

Depending on the severity of the application, some stamping dies require frequent reconditioning or recoating. However, some coating processes are done at such high temperatures that the dies become distorted and unuseable, requiring further regrinding. Omni Mfg. encountered this problem in stamping a heavy-duty hinge. It then discovered FortiPhy UltraEndurance™ from Phygen Inc., which increased the hit count on its dies from 20,000 to 200,000 between recoatings. The coating is applied at a relatively low temperature, so distortion is not a factor.

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Launching a successful die protection program

November 9, 2004

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As I entered the clean, well-lit Midwest factory one day, I found several relatively new presses and feeder systems. The shop floor appeared to be well-organized, with material steadily flowing into and away from the presses. The employees seemed to know their jobs and were on task.But when I...

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Making a case for in-die tapping

October 12, 2004

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Never before has competition been greater in the metal stamping industry, both domestically and worldwide.

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Using forming assessment tools to make wise die-buying decisions

October 12, 2004

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Establishing a good buying procedure is a critical aspect of the tool purchasing process. All too often tool supplier expectations are not communicated and executed effectively. Miscommunication can cause you to purchase a die that doesn't produce good parts, needs constant attention, wears out prematurely, or has other problems.

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Servo-driven mechanical presses meet HSS head-on

October 12, 2004

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A recent mechanical stamping press innovation, the servo drive is designed to meet challenges related to stamping high-strength steels (HSS).

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Keep on stamping

September 14, 2004

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To be competitive in a global economy, U.S. stampers must provide defect-free parts, reduce waste, and eliminate downtime while contending with increasing raw material costs and limited availability of some metals. Because stampers have no control over the supply side of the market, they must focus...

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Survival of the fastest

September 14, 2004

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Because metal fabricators and OEMs have increasingly strict requirements, many suppliers of sheets and blanks must provide high-quality metal stock in terms of flatness, finish, and dimensional accuracy. Competition for every bid is tight, making it easy to take the quality for granted. If every...

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Chemical-free cleaning of HSP lubricants

September 14, 2004

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New requirements for clean, dry parts drive the need for efficient, flexible workcell parts cleaning.

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Slitting ultrahigh-strength steels

August 10, 2004

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The automotive industry's search for stronger and lighter materials spawned new steel grades to meet higher strength-to-weight ratio requirements. While these materials allow automotive engineers to design lighter and stronger components, they present stampers and coil processors with some...

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Sequence scheduling in automotive scheduling

August 10, 2004

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Although automakers' demands on automotive stampers fluctuate, under normal conditions, the variation in quantities of parts required is 20 percent or less. Most of the time the variation is substantially lower, although seasonal changes, such as holidays and plant shutdowns, can have an impact on...

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Preventive maintenance for hydraulic presses

August 10, 2004

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Ask 10 stampers what preventive maintenance is, and you'll probably get 10 different answers.Why? Because not all presses require the same maintenance.To keep all of your shop's equipment in good working condition, try developing and implementing a written routine preventive maintenance schedule.An...

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Tackling cutting and piercing problems in stamping operations

August 10, 2004

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Figure 1Poor cutting section designCutting problems, such as die sections breaking, slugs jamming and pulling, and burrs, are common stamping challenges. Many of these problems are caused by poor die design. Others are caused by poor maintenance techniques, improper setup, and poor scrap...

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Acoustic emission monitoring for stamping presses

July 13, 2004

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Sheet metal forming companies face constantly increasing demands for higher production speeds from their machinery and more complex parts. At the same time customers demand higher standards of quality and stringent price controls, even as production volumes swell.Figure 1If a deviation from...

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Controlling double sheet in stamping operations

July 13, 2004

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Almost everyone has experienced a double-sheet problem. Copiers, printers, and fax machines sometimes feed two sheets, which then jam the machines and have to be removed. While two sheets of paper seldom cause major harm to office equipment, two sheets of metal can cause major damage to tools and...

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