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.

Metals/Materials | Articles

Die Science: Guidelines for forming high-strength material

April 11, 2006 | By Art Hedrick

High-strength materials are becoming more common in stamping, especially for the aircraft and space industries. Although they all have their own specific features, they have some common characteristics and typical reactions to stretching and drawing.

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Stamping | Articles

Die Basics 101: Part VII

April 11, 2006 | By Art Hedrick

Previous articles in this series focused on stamping dies and production methods. This article discusses stamping materials—both ferrous and nonferrous.To process, design, and build a successful stamping die, it is necessary to fully understand the behavioral characteristics of the specific...

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Stamping | Articles

Die basics 101: Part VI

February 7, 2006 | By Art Hedrick

Previous articles in this series discussed common stamping die components. This article focuses on less common specialty components found only in certain dies, most of which are available from various suppliers.Figure 1Inidie Tapping UnitsImage courtesy of Danly IEM.In-die Tapping UnitsMany dies...

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Stamping | Articles

Die basics 101: Part V

December 13, 2005 | By Art Hedrick

Many specialty components can be used in dies, but the most commonly used are die plates, shoes, die sets, guide pins, bushings, heel blocks, heel plates, screws, dowels, and keys—all of which were explained in Part IV of this series. This article focuses on other common components—pads,...

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Stamping | Articles

Die maintenance. Die repair.

November 8, 2005 | By Art Hedrick

Unnecessary die repair stems from several basic shortcomings, namely poor die design, setup procedures, tool design, and maintenance techniques.

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Stamping | Articles

Die basics 101: Part IV

October 11, 2005 | By Art Hedrick

Stamping dies can comprise many components. This article discusses the basic components, including die plates, shoes, die sets, guide pins, bushings, heel blocks, heel plates, screws, dowels, and keys. This article is one of a 16-part series on the fundamentals of stamping. Descriptions of all the articles in this series, and links to them, can be found at the end of this article.

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Stamping | Articles

Die Basics 101: Part III

August 9, 2005 | By Art Hedrick

Many factors come into play when choosing a production method for stamping. This article discusses and explains the advantages and disadvantages of line dies, transfer dies, and progressive dies. This article is one of a 16-part series on the fundamentals of stamping. Descriptions of all the articles in this series, and links to them, can be found at the end of this article.

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Stamping | Articles

Die Basics 101: Part II

June 14, 2005 | By Art Hedrick

Figure 1EmbossingAll forming operations deform sheet material by exposing it to tension, compression, or both. Most part defects, such as splits and wrinkles, occur in forming operations. Successful sheet metal forming relies heavily on the metal's mechanical properties. The metal being formed must...

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Stamping | Articles

Die Basics 101: Part I

April 11, 2005 | By Art Hedrick

This article is one of a 16-part series on the fundamentals of stamping. Descriptions of all the articles in this series, and links to them, can be found at the end of this article.

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Punching and Other Holemaking | Articles

Solving pierce punch breaking and chipping problems

February 8, 2005 | By Art Hedrick

Figure 1Having a pierce or perforating punch chip, or worse yet break, can cause severe die damage. It also can result in nonconforming parts because of burrs or undersize holes. Broken punch pieces can fall into the die and crush pads, as well as forming and cutting sections. This article...

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Stamping | Articles

Listening to your parts

January 11, 2005 | By Art Hedrick

Figure 1Even if the scoring is the reason for the split, that doesn't mean that resolving the galling issue will ensure a robust process.I recently had the chance to engage in some very interesting conversation with the head of the sheet metal formability lab for a very large automotive stamper....

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Stamping | Articles

Cams, cams, and more cams

December 7, 2004 | By Art Hedrick

How do you choose a store-bought cam for your stamping operation? Hundreds of cam designs are available today from numerous suppliers. Choosing the one that best fits your needs, as well as your budget, sometimes can be very confusing.

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Stamping | Articles

Regaining flatness in stamped parts

December 7, 2004 | By Art Hedrick

Of all the geometric tolerances that are difficult to achieve, flatness is one of the hardest. Most stampers probably would much rather try to make a complex-shaped, thin, high-strength steel deep-drawn part than hold a small-tolerance part requiring a tight flatness.Achieving part flatness is a...

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Shop Management | Articles

Successful stamping: It's a 'we' thing

November 9, 2004 | By Art Hedrick

As a consultant and educator, I travel to numerous die shops and stamping plants, and almost all of them have the same basic request:"Can you show these tooling guys how to make the dies run better?"I hear comments like "We sure have a lot of downtime and scrap, not to mention the usual problems...

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Stamping | Articles

Using forming assessment tools to make wise die-buying decisions

October 12, 2004 | By Art Hedrick

Establishing a good buying procedure is a critical aspect of the tool purchasing process. All too often tool supplier expectations are not communicated and executed effectively. Miscommunication can cause you to purchase a die that doesn't produce good parts, needs constant attention, wears out prematurely, or has other problems.

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