Dieology LLC

Art Hedrick

Contributing Writer
Dieology LLC
8730 10 Mile Rd. SE.
Rockford, MI 49341


Phone: 616-894-6855
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.

Die Science: How to destroy a die in 7 easy steps (or, how to work every Sunday)

January 7, 2016

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Art Hedrick applies humor to a not-so-funny problem.

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Die Science: How to destroy a press

January 6, 2016

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It’s amazing how many stampers and tool and die shops negate the importance of the press. Shops often “maintain” a press when it stops working. In other words, they repair the press, but they don’t maintain it regularly. I could have just as easily named this article “How to select...

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Die Science: Training new tool- and diemakers

November 27, 2015

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I must get two or three calls a week from companies needing tool- and diemakers, die maintenance specialists, or die repair specialists. The demand for skilled labor has skyrocketed in the last year or so. Unfortunately, most of the time I can’t help them. The Dwindling Talent Pool...

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Die Science: The top 5 drawing die violations

October 6, 2015

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Deep-drawing failures—from splitting to scoring to shock lines—often are a result of common engineering mistakes. These problems can occur whether you are using a single-station drawing die, multiple drawing stations, or drawing reductions. Let’s take a look at the five most common...

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Die Science: Drawing and stretching

July 1, 2015

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When I conduct training seminars on drawing and stretching, I usually bring with me a variety of unusual parts made using those processes. Often, attendees ask how to stretch the metal into a shape such as a deep can or deeply formed part without splitting the metal. I simply answer: “We don’t....

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Die Science: Slug pulling—Causes and solutions

June 11, 2015

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Slug pulling in a stamping die can be costly and frustrating. One pulled slug can cripple production. What Is Slug Pulling? When a pierce punch creates a hole, it also produces scrap, called the slug. When the slug sticks to the face of the punch during withdrawal or comes out of the button...

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Die Science: Step-by-step troubleshooting of stamping dies, Part I

March 6, 2015

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Opinions on how to troubleshoot a stamping operation are not in short supply at any production stamping or die-building shop. I’m not trying to stereotype diemakers, designers, or technicians, but their decisions often are made based on insufficient data. Statistically speaking, if I...

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Die Science: Step-by-step troubleshooting of stamping dies, Part II

March 6, 2015

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In Part I of this article, which appeared in the January/February 2015 issue, I discussed the first two basic steps in troubleshooting: Identify problems with the part and verify the die and press setup parameters. Following are the remaining seven steps in the process. Step 3—Reassess and...

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Die Science: Attempting to defy the laws of physics, Part II

May 10, 2011

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It is almost unrealistic to expect some stamped part part features, such as hole position and flatness, to remain within a small tolerancing zone.

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Die Science: Attempting to defy the laws of physics, Part I

March 11, 2011

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The forms and positional tolerances called out on product designs often defy the physical abilities of the product's material. Proper product and process design, as well as pressure clamping, can help maintain strict tolerances.

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DIEVESTIGATION: Deep-drawing and stretching variables – Part II

December 13, 2010

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This article continues the discussion of deep-drawing and stretching variables begun in Part I by describing friction, thermal expansion, metal topography, and forming speeds and how they affect metal forming operations.

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Steel coils

Deep-drawing and stretching variables – Part I

October 21, 2010

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Ever wonder why one out of every 500 or so of your deep-drawn or stretched parts splits? Why you can’t make a part consistently? The answer lies in the variables of these operations—variables all metal formers must deal with.

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Die quoting engineers

DIEVESTIGATION: Diemaking, from concept to reality

August 9, 2010

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Just what is involved in die building? Whether you are a die builder or a stamping company that uses dies, this overview can help you understand the many steps required to take a die from concept to production.

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Deep Drawn part

DIEVESTIGATION: Important considerations when designing deep-drawn parts

June 16, 2010

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What is deep drawing? What part parameters require the process? What must you consider when designing a deep-drawn part, and when should you consider an alternate process, such as spinning?

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Drawing and Stretching Diagram

DIEVESTIGATION: Draw or stretch? That is the question

April 13, 2010

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When designing a part, you must decide which is the best way to form it. Should you draw it or stretch it? That depends on several factors, including forming depth.

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