Stamping Articles


Filter Content

Meeting global challenges through employee rewards

August 8, 2006 | By A.A. Imberman

Arco Industries Inc. bought a 15-year-old, 500-ton Tranemo hydraulic punching press with an antiquated control system. For about one-quarter the cost of a new press, Arco was able to rejuvenate an obsolete press by providing it with contemporary levels of control and productivity.

Continue Reading

Die Science: Unique forming short cuts

August 8, 2006 | By Art Hedrick

Die designers often are faced with how to make a part feature that is unique and possibly difficut to form. Short cuts are discussed for twisting a part, creating a return flange, and making a 90-degree bend.

Continue Reading

Draw forming, Part III

August 8, 2006 | By Edmund Herman

The connections between product conditions and product input variables for draw forming must be made through the intermediary transformation characteristics: plastic strains and displacements. So all product requirements must be redefined as the changes (or transformations) required of those two characteristics.

Continue Reading

21st century stamping material specifications

July 11, 2006 | By Edmund Herman

Advanced technology in the metal stamping industry has rendered obsolete traditional methods of selecting, specifying, and supplying material. Using modern technology to quantify materials can reduce the occurrence of material variation exceeding the die and process capabilities and make die development a much more efficient process.

Continue Reading

The modern mechanical press

July 11, 2006 | By Dennis Boerger

End-user demands for new product configurations, materials, and press capabilities continue to have an impact on the metal forming arena. Mechanical press design improvements and flexibility are keeping up with stampers' changing applications.

Continue Reading

Die Science: The process of fineblanking

July 11, 2006 | By Art Hedrick

Fineblanking can achieve flatness and cut edge characteristics that are unobtainable by conventional stamping and punching methods. Fineblanking is described in relation to conventional methods to encourage a better understanding of its benefits and limitations.

Continue Reading

Draw forming, Part II

June 16, 2006 | By Edmund Herman

In draw forming, measurement and quantification are essential to ensuring part quality for the customer. However, the product requirements and the product input variables have different metrics and different conceptual meanings, which seems to defy direct engineering. Three processing variables can be adjusted during production to ensure the part is formed correctly.

Continue Reading

Implementing Press Automation

June 13, 2006 | By Dean C. Phillips

To compete in a global market, all stampers need adapt their manufacturing processes. By mixing automation with electronic controls, job shops can increase output and exceed past manufacturing goals.

Continue Reading

A closer look at self-piercing riveting

June 13, 2006 | By Yingjie Xu

Self-piercing riviting, an alternative sheet joining method, is being used more to join aluminum sheets. The finite element method can be employed to study the SPR process and joints, perhaps even leading to the elimination of physical testing of these mechanical joints.

Continue Reading

Die Basics 101: Part VIII

June 13, 2006 | By Art Hedrick

Figure 1 Part VII of this series introduced two basic types of metals used to manufacture stamped parts—ferrous, metals that contain iron, and nonferrous, metals that do not contain iron. This article discusses the specific mechanical properties of these metals in more detail.The metal's...

Continue Reading

Die Science: Die building

June 13, 2006 | By Art Hedrick

In any stamping process including progressive dies, transfer dies, or line dies, three factors are essential to consider when processing a piece of flat metal into a finished part: What is the metal? What is the metal's thickness? What are the part tolerances?

Continue Reading

Evaluating dry film lubricants for automotive applications Part I

June 13, 2006

In recent studies, dry-film lubricants have been shown to give better lubrication conditions compared to oil-based liquid lubricants. This factor, as well as savings in the amount of lubricant used, has helped increase the use of dry-film lubricants in the automotive industry for forming of aluminum and high-strength steel stamped parts.

Continue Reading

Evaluating dry film lubricants for automotive applications Part II

June 13, 2006

The ironing test developed at the ERC/NSM reproduces production conditions of contact pressure up to 94 kilopounds per square inch (KSI) and temperatures up to 300 degrees F to quantitatively evaluate lubricant performance.

Continue Reading

Microwelding: Then and now

May 15, 2006 | By Stephanie Vaughan

Like the molds he repairs, Five Star Tool Welding owner Joe Canfield finds that the welding equipment he uses at his company is getting smaller and smaller. Over the years GTAW equipment has evolved to better meet the needs of its tool and die welding users.

Continue Reading

New handling instructions

May 9, 2006 | By Dan Davis

In 2005 precision stamper Weiss-Aug of East Hanover, N.J., achieved a reject rate of less than 1 part per million. The company credits the success to meticulous planning and almost flawless execution. Such an approach applies for Weiss-Aug even when it comes to uncoiling metal.

Continue Reading