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

Eliminating slug pulling during piercing operations

May 4, 2004 | By Art Hedrick

Author's Note: Before I get into the meat of this article, I would like to let my readers know how much I appreciate their loyalty to STAMPING Journal® and the Die Science column.STAMPING Journalnow is published monthly, and I am delighted to announce that I will be writing the Die Science...

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Stamping | Articles

Pitch notch or not? Factors to consider when designing progressive dies

April 6, 2004 | By Art Hedrick

Figure 1In today's competitive global market, stampers are looking for ways to reduce tooling and stamping cost by any means possible. Pitch notches, often referred to as French notches, are used commonly to prevent overfeeding and mis-hits in progressive dies. More often than not, however, using a...

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Stamping | Articles

Selecting a stamping die pressure system, Part II

February 12, 2004 | By Art Hedrick

Selecting a stamping die's pressure system can be a critical decision. Many questions must be answered to determine what type of pressure system best suits your application. This article is Part II of a two-part series that focuses on the different systems available, as well as the advantages and...

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Stamping | Articles

Selecting a stamping die pressure system, Part I

December 11, 2003 | By Art Hedrick

This article is part one of a two-part series that focuses on the different stamping die pressure systems available, as well as the advantages and disadvantages of each. The article also discusses some of the controlling factors that contribute to system selection.

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Stamping | Articles

Controlling bend angles

October 9, 2003 | By Art Hedrick

Bend angles are among the most frustrating geometric features to control in metal stamping. This is due primarily to two factors – the inconsistency of the mechanical properties in the metal being bent and the die design.

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Stamping | Articles

Die geometry for embossing and stretching

August 28, 2003 | By Art Hedrick

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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Stamping | Articles

Toolmaker tricks

August 14, 2003 | By Art Hedrick

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 | Articles

Designing high-strength steel stamped parts for formability

June 12, 2003 | By Art Hedrick

The use of high-strength steel to manufacture automobiles and other transportation vehicles has increased dramatically. The material's strength allows manufacturers to reduce vehicle weight substantially and increase fuel efficiency, without sacrificing performance.

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Stamping | Articles

Establishing a die setup recipe for progressive dies

April 10, 2003 | By Art Hedrick

Setting up a stamping die is one of the most critical steps in a successful stamping process. It's a fact: More damage is done to a die, especially a progressive die, in the first 10 hits than in the next 10,000 hits. Most die damage happens during initial setup, when the material is being fed into the die. Mistakes such as misfeeds, pilot piercing, double metal, sheared cutting sections, and stock hang-ups often occur.

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Shop Management | Articles

Drawing on the strength of people

April 10, 2003 | By Art Hedrick

During the recent economic downturn, sheet metal stampers, die shops, and some job shops experienced layoffs and some closed their doors. However, a few stampers have remained profitable despite uncertain economic times.

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Shop Management | Articles

Psychology for the tool room

March 13, 2003 | By Art Hedrick

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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Stamping | Articles

Why use sheet hydroforming dies?

February 13, 2003 | By Art Hedrick

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

Stamping | Articles

Reducing Negative Tonnage

November 21, 2002 | By Art Hedrick

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

Stamping | Articles

Taking advantage of simulation technology

October 24, 2002 | By Art Hedrick

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

Stamping | Articles

Deep drawing aluminum—not as hard as it looks

October 10, 2002 | By Art Hedrick

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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