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Controlling double sheet in stamping operations

July 13, 2004 | By Fred Goronzy

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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Acoustic emission monitoring for stamping presses

July 13, 2004 | By Ferdinand Oppel

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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Dangerous curves

June 8, 2004 | By Kathleen McLaughlin

Provocative lines and innovative materials are the hallmarks of luxury car manufacturer Jaguar Cars Ltd.Jaguar has reaped the benefits of aluminum since 1922, when the company, then known as the Swallow Sidecar Co., designed sidecars out of lightweight aluminum panels. Since then the company has...

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Spraying it right

June 8, 2004 | By Stan Reineke

For coil-fed applications, spray cabinets can be mounted to the feeder to accommodate passline changes.Most stampers understand the need for lubricants, but many apply as little as possible so they don't have to deal with the mess. Others take an opposite approach and flood the tool and...

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Advanced lubricant technology for high-strength steel

June 8, 2004 | By Brad Jeffery

Figure 1As if the recent rise in steel prices weren't enough, now automotive stamping suppliers are faced with the difficult task of getting high-strength steel (HSS) to form parts with tooling designed for mild steel.In an effort to reduce vehicle weight and improve gas mileage, automotive...

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Sink-making secrets

June 8, 2004 | By Art Hedrick

Figure 1Double drawn stainless steel sinkSink photo courtesy of Polarware.Have you ever looked at a deep-drawn double-bowl sink and wondered how it's made? After all, one deep-drawn shell is right next to the other. Where does the metal come from to achieve the height?Figure 1shows a classic...

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Using Monitoring Systems to Improve Stamping 'Batting Average'

May 4, 2004 | By Pat Ontrop

What do baseball players, weather forecasters, and typical stamping plants have in common? Most are less than 60 percent effective.

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Sizing up pallet decoilers

May 4, 2004 | By Michael Grabow

The primary reason for purchasing a decoiler is to increase production. By correctly sizing the machine for your needs, you can increase production and the bottom line.

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Eliminating slug pulling during piercing operations

May 4, 2004 | By Art Hedrick

Author's Note: Before I get into the meat of this article, I would like to let my readers know how much I appreciate their loyalty to STAMPING Journal® and the Die Science column.STAMPING Journalnow is published monthly, and I am delighted to announce that I will be writing the Die Science...

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Saving time and reducing waste with quick die change

May 4, 2004 | By Herb Kamphausen

Quick die change is not just a way of setting up dies; it's a mindset for the elimination of waste.

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Stamping tools for UHSS get tougher

April 6, 2004 | By Ed Severson, Brett Krause

The automotive industry wants to develop cars that are lighter, stronger, and less costly to manufacture. One way it can achieve these goals is to construct body panels, suspension components, structural members, and frames using ultrahigh-strength steels (UHSS). Increasing an automotive part's...

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Sizing up servo presses

April 6, 2004 | By James Landowski

Servo-powered presses will not replace all flywheel mechanical presses. Each technology has its advantages and disadvantages, depending on the stamping application.

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Next-generation synthetic forming fluids

April 6, 2004 | By Bob Trivett

Successful metal forming, stamping, and deep drawing depend on three basic elements: the metal substrate, tooling, and lubrication.

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Pitch notch or not? Factors to consider when designing progressive dies

April 6, 2004 | By Art Hedrick

Figure 1In today's competitive global market, stampers are looking for ways to reduce tooling and stamping cost by any means possible. Pitch notches, often referred to as French notches, are used commonly to prevent overfeeding and mis-hits in progressive dies. More often than not, however, using a...

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Venturing Into the World of 3-D Die Design

March 11, 2004 | By Robert W. Harper

2-D, or not 2-D; that is the question. Whether 'tis nobler to venture out into a brisk, bold, new world of 3-D or to stick with old, reliable methods in 2-D.

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