Dieology LLC

Art Hedrick

Contributing Writer
Dieology LLC
8579 River Oak Circle
Greenville, MI 48838


Phone: 616-225-2170
www.dieology.com
Contact via email
Author of the "Die Science" column in STAMPING Journal®, Art also has written technical articles on stamping die design and build for a number of trade publications. A recipient of many training awards, he is active in metal stamping training and consulting worldwide.

Psychology for the tool room

March 13, 2003

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As a consultant for the sheet metal stamping industry, I have had the opportunity to visit numerous stamping plants, die shops, and engineering facilities. One comment I often hear during these adventures is how arrogant or "know-it-all" some of the toolmakers or engineers are.

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Why use sheet hydroforming dies?

February 13, 2003

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Most automobile manufacturers have looked for alternatives to the steel traditionally used in car production; hence, the introduction of high-strength steel.

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Grip flow parts

Reducing Negative Tonnage

November 21, 2002

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Over time negative tonnage can cause significant press and die damage. Understanding the factors that influence the amount of negative tonnage can help you control it.

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One step forming simulation

Taking advantage of simulation technology

October 24, 2002

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One of the most valuable high-tech tools introduced in the last decade has been finite element analysis (FEA) simulation software that stamping tool makers can use to test forming conditions and design dies in the virtual world. This reduces tooling and product design time and saves costs of prototyping and experimentation to find the right design. Training the tool designer or process engineer how to use simulation software can provide a quick ROI and improve the bottom line.

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Aluminum car design figure 1

Deep drawing aluminum—not as hard as it looks

October 10, 2002

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Keeping a couple key tips in mind can help you turn aluminum stamping from a source of frustration to a source of income and satisfaction in a hurry.

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Good design, set-up, maintenance can keep dies out of repair shop

June 26, 2002

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Take this old maxim to heart: A stitch in time saves nine. The same goes for die maintenance and repair.

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Draw punch diagram

Getting the most from your deep-drawn material

March 14, 2002

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Learning how to get every bit of flow out of your metal while minimizing scrap -- doesn't that sound like a good idea?

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Coil set

Forming high-strength materials

January 31, 2002

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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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The HOW, WHAT, and WHY of liquid impact forming

January 24, 2002

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Liquid impact forming, a patented process developed by Greenville Tool & Die Co., Greenville, Mich., uses a conventional stamping press with a liquid medium to manufacture parts that otherwise would require hydroforming.

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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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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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Know your bending basics—Part II

July 26, 2001

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When trying to make a good 90 degree bend with sheet metal, there's more than on way home. Just make sure your method can accommodate improvisation.

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Draw ratio chart

Key design principles for successful deep drawing

May 30, 2001

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Successful deep drawing depends on many factors. Ignoring even one of them during die design and build can prove disastrous.

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Know your bending basics—Part I

May 15, 2001

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Knowing how metal bends and what factors come into play during bending—especially wipe bending—can make a positive difference in your stamping operation.

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Die design for flat parts: Achieving perfection in a difficult task

February 19, 2001

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Flatness is one of the most difficult part characteristics to achieve in a conventional stamping die.

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