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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Choosing the proper steel to minimize abrasive adhesive tool wear

September 25, 2003

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The most disruptive type of failure in any tooling application is when the tool cracks. To prevent this type of failure in cold-work applications, it's important to select the correct steel.

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Hydraulic presses make their mark

September 25, 2003

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Just like hydraulics technology itself, the market for presses based on it is fluid and dynamic. And for the first time in a while, the tide may be turning in favor of its practitioners.As many manufacturers report prosperity and strong prospects for it in the near future, the hydraulic press...

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Protecting surface-sensitive materials in coil processing - Three potential danger areas

August 28, 2003

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As manufacturers worldwide strive to reduce costs and streamline their production processes, the market for surface-sensitive materials continues to expand. Surface-sensitive materials include all prepainted steel products and nonferrous decorative materials, such as copper, brass, and stainless steel.

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Die geometry for embossing and stretching

August 28, 2003

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Stretching or embossing, not to be confused with drawing, is the process in which the part's geometry is obtained by stretching the metal into a forming cavity.

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Using binder force control, force modulation, to improve part quality, stamping efficiency

August 28, 2003

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Editor's Note: This column was prepared by the staff of the Engineering Research Center for Net Shape Manufacturing (ERC/ NSM), The Ohio State University, Professor Taylan Altan, director.Binder, or blank holder, force control is an important variable in the stamping process. Constant blank holder...

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Toolmaker tricks

August 14, 2003

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It is not unusual for me to perform a few magic tricks when holding a conference on stamping die drawing, troubleshooting, or processing. Later on, I may disclose the magicbehind the trick. I do this for a couple of reasons: first, to entertain the conference attendees, and second, to show them that there is no such thing as magic, only physics.

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Stamping out bad parts

August 14, 2003

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Sheet metal manufacturers are under constant pressure to improve and document quality while reducing costs. Furthermore, original equipment manufacturers are shifting responsibility for quality inspections to suppliers, adding extra burdens. New, complex product designs and rigorous processes, such as deep drawing and the growing use of exotic materials, are placing greater demands on both quality assurance and development departments.

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What's driving your press?

August 14, 2003

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Mechanical presses are challenged to provide high-speed production with a greater number of hits per minute, smaller batch runs, and quicker die changes.

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Virtual tryout

August 14, 2003

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In this era of global warp speed and virtual reality, calculating the deep draws of progressive dies or the springback of metal is performed by simulation software instead of the earlier trial-and-error method. These software programs essentially replace the artistic methods of diemaking with...

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Die width selection

July 24, 2003

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Most designers and engineers usually place very little importance on achieving the correct inside radius of a formed part. Why? Because the functionality of the part is unaffected if the specified inside radius is 0.062 in. and actual measured inside radius is 0.078 in. So why do we care about...

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Improving blank edge conditions

July 24, 2003

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A blank, stamped in the first station of a progressive stamping operation, usually is subject to subsequent forming processes to form a designated part. If the blank is subject to straining, deformation, bending, stretching, or lateral expansion in later stations, its edge condition should be carefully examined.

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Taking the heat, keeping the current

July 24, 2003

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A DaimlerChrysler powertrain control module cover/heat sink assembly needed to be thermally conductive yet electrically isolated. The populated circuit board—one with all components in place—had to be bonded to the heat sink and postcured in a vacuum laminating press. The entire module...

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Maximizing a coil fed press

July 24, 2003

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Coil-fed stamping presses are nothing new, but coil feeding processes have changed a lot since the days when press feeders were driven mechanically by crank motion. Influencing these processes are differences between transfer and progressive tooling.

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Taking an integrated build approach to stamping tool tryout

June 26, 2003

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Market pressures to reduce tooling costs are pressing the tool and die industry to seek lower-cost tooling solutions. This column discusses different build approaches and the merits of an integrated build for trying out stamping dies (and molds) as part of the manufacturing validation process.

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Tooling tricks of the trade

June 26, 2003

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Just make it work!" they scream. "I don't care how Just make it work!"As a tooling professional (whether you are a tool- and diemaker, engineer, press operator, or any other member of the team responsible for operating and maintaining that die), you quickly find that "making it work" is...

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