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.

Stamping | Articles

Die Science: Estimating die cost

December 2, 2016 | By Art Hedrick

Before receiving a contract to design and build a die, the building shop must quote a price to the customer. Because every die usually is a one-of-a-kind tool, the process of quoting tooling cost is not always easy. The person estimating this cost must have a good understanding of sheet metal...

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Stamping | Articles

Die Science: The basics of troubleshooting die problems

October 10, 2016 | By Art Hedrick

In my career as a consultant, I have experienced numerous die-related problems. Some were complex, and some were easy to solve. But most were solved by following basic die design and troubleshooting guidelines. For a stamping die to function properly, you have to follow three basic die design...

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Stamping | Articles

Die Science: How many hits does it take to get to the end of a tool’s life?

July 7, 2016 | By Art Hedrick

Recently I was asked at a training session to state the average life of a stamping die. The person asking was from the costing department of a large automotive firm. He said he needed to know because he was getting different answers from different individuals in the organization—anywhere from...

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Stamping | Articles

Reading progressive die strip — Part II

June 16, 2016 | By Art Hedrick

Editor's Note: This is the second part of a two-part article about reading progressive-die strips. Part I, which appeared in the May issue, covered the causes of pilot hole distortion and mismatched cuts. Hard marks, otherwise known as coin marks, occur when metal is severely squeezed between two...

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Stamping | Articles

Die Science: Developing forming dies - Part III

June 16, 2016 | By Art Hedrick

Editor's Note: This is third installment of a three-part series that discusses die development for producing nonuniform, contoured parts by breaking the process down into eight steps. Part I covers the part material, its form, and its function. Part II discusses length-of-line analysis and tip...

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Stamping | Articles

Die Science: Developing forming dies - Part II

June 16, 2016 | By Art Hedrick

Editor's Note: This is first installment of a three-part series that discusses die development for producing nonuniform, contoured parts by breaking the process down into eight steps. Part I covers the part material, its form, and its function. Part II discusses length-of-line analysis and tip...

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Stamping | Articles

Die Science: Solving punch breakage problems - Part III

June 16, 2016 | By Art Hedrick

Numerous factors contribute to the premature failure of piercing and cutting punches. In addition to problems with the punches, such as tool steel or problems caused by EDM and grinding, the press can cause problems through deflection, and bridge strippers also can cause punch breakage.

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Stamping | Articles

Die Science: Designing dies 2-D or 3-D?

June 16, 2016 | By Art Hedrick

Both 2-D and 3-D die design packages have advantages and disadvantages, which are discussed here, but true success lies in the designer's ability, not the software's.

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Stamping | Articles

Die Science: Fundamentals of drawing

June 8, 2016 | By Art Hedrick

Columnist Art Hedrick goes back to basics about drawing, offering a comparison of drawing and casting, an explanation of flow and control.

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Stamping | Articles

Die Science: Understanding deep-drawing and stretching variables for best results

March 4, 2016 | By Art Hedrick

Numerous variables affect the success of a deep-drawing or stretching process. Some are major and some minor, but you’ll need to take all into consideration when designing, building, and troubleshooting a drawing or stretching operation. Sheet and Coil Material Material is a major...

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Stamping | Articles

Die Science: How to destroy a press

January 6, 2016 | By Art Hedrick

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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Stamping | Articles

Die Science: Training new tool- and diemakers

November 27, 2015 | By Art Hedrick

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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Stamping | Articles

Die Science: The top 5 drawing die violations

October 6, 2015 | By Art Hedrick

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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Stamping | Articles

Die Science: Drawing and stretching

July 1, 2015 | By Art Hedrick

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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