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.
Sheet metal stamped parts

Sheet Metal Stamping 101, Part I

April 14, 2009

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Metalworking professionals who possess diverse proficient skills have an edge in a tight job market. In this first installment in a series, tool-and-die expert Art Hedrick presents an overview of the metal stamping industry and describes the various careers available in the sector.

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Survival—Are factors other than the economy dragging down your operation?

February 10, 2009

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Art Hedrick, longtime consultant to the sheet metal stamping industry, has observed three internal factors that can negatively affect an operation. In this economic climate in which so much is at stake, you want to make sure that your business does not suffer from these self-destructive characteristics.

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Revealing the Magic — Using data and conducting experiments to solve metal forming problems

December 14, 2008

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Effective stamping professionals rely on scientific principles and not magic to determine and correct production problems. Find out how to troubleshoot wrinkles and rips and take corrective action by following a basic procedure that can be modified to troubleshoot almost any stamping issue.

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Joint preparation diagram

Buying time—by welding

October 28, 2008

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You're almost at the end of a production run and your stamping die fails. What do you do? Replace the failed component? Attempt a repair? How do you decide which option is best? These questions—along with basic guidelines for repairing a die by welding—are answered in this article.

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Minster Stamping Press

3 deadly tool design sins

August 12, 2008

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Among the many factors to consider when designing and building a stamping die are the material to be processed, the press that will run the die, and specified part tolerances. Inadequate knowledge of these factors can contribute to die failure and production and quality problems.

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Part checking fixture

Measuring forming severity

June 17, 2008

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Determining a part's forming severity, something that is critical for a successful stamping operation, takes into account various data. This article discusses the different types of data and how each is obtained. It also compares circle grid analysis to square grid analysis.

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Progressive die strips

Die Science: Reading progressive die strips — Part I

May 1, 2008

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Looking at the results of a process—in this case, the strip produced in the die—certainly can lead to good data indicating the root cause of a problem. Distorted, elongated pilot holes, mismatched cuts are common defects. Distorted pilot holes can be the result of a poor carrier design. An improperly set up feed release can cause misfeeds, pilot hole elongation, and bent, broken, or galled pilots, as well as poor part location and gauging.

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Cold Forming Tooling Diagram

Getting the most from your cutting punches: Part II

April 29, 2008

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Many factors influence tool steel selection. Part Iof this article focused on selecting the right cutting clearance. Part II discusses properties to look for in tool steel and the importance of heat treating, preparation for production, coatings, lubricants, and the press on which the tool...

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Extrusion die design

Die Science: Successful extruding - Part II

April 15, 2008

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Die design and building is a critical part of a successful extrusion process. ironing—vertically squeezing the metal between the punch and the die to increase the surface area—helps refine the extruding process, as does preforming.

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Die Science: Successful extruding - Part I

March 15, 2008

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Extrusion is the process in which a continuous radial stretch flange is created by expanding a hole. Of all of the factors controlling the success of an extruding operation, material type and its mechanical properties are the most influential. Materials exhibiting good stretch capability and stretch distribution characteristics are best suited for extruding.

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Die cutting diagram figure 1

Getting the most from your cutting punches: Part I

February 12, 2008

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Selecting the right cutting clearance and tool for an application is among the challenges stampers face. Material properties and other factors influence this decision. Following some basic guidelines presented in this article can help you select or design the best tool for your needs.

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Transfer die rails

Die Science: Stamping 101 - Die basics

January 15, 2008

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This article introduces beginning toolmakers, die maintenance technicians, engineers, and press technicians to tool and die components and their functions

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Die Science: Why is it Dieology, not Dieologism?

December 11, 2007

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Successful dieworkers are very methodical and data-driven in the way they approach a problem. They carefully study each problem, determine its root cause, and take both short- and long-term corrective action.

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Die Drawing process

Die Basics 101: Part XVII

December 11, 2007

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Part XVI of this series wrapped up the discussion of bending in stamping operations. This article focuses on drawing. What Is Drawing? Drawing is a metal forming process in which a product is made by controlling sheet metal flow into a cavity and over a punch. The process of deep drawing means...

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Compression deformation diagram

Die Science: Piercing, cutting aluminum sans slivers

November 6, 2007

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Slivers are the result of the aluminum interfacing with the cutting sections or punches. To reduce the production of slivers the severity of friction at the point where the two surfaces interface must be reduced. The general rule for cutting materials is the softer the metal the smaller the cutting clearance.

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