Stamping Articles

Whether you're using a high-speed stamping press to make simple parts at breakneck speeds or doing something really tricky, like deep drawing a material that puts up a lot of resistance, the information in this technology area is sure to help. The articles, case studies, and press releases cover stamping presses, lubricants, and materials.

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Transfer die rails

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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Leveler machine

New generation of levelers tames high-strength steels

December 11, 2007

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A new generation of levelers is equipped to meet today's demands to flatten the high-strength materials.used more prevalently in the automotive industry than ever. To tame the coil set, crossbow, twist, and edge camber in high-strength steel (HSS) coil, higher leveling forces and new concepts are needed.

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Primary flux

Optimizing a single probe, gap-tolerant, double sheet detector system

December 11, 2007

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Detecting the presence of two sheets in a press feeding operation uses scientific principles, but the process is not an exact science. A typical press-feeding situation involves an air gap between the detector and the first sheet in the stack or an air gap between the top two sheets, and these air gaps reduce the detector's effectiveness. Understanding the capabilities of the detector and the limitations imposed by imperfect conditions can help stampers set up an effective double-sheet detector system.

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Oil sampling

8 Things you should know about your hydraulic press

December 11, 2007

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What should you do to keep your hydraulic press running? Know your press--when it is working properly or when it needs attention. You can extend press life and maximize your investment by keeping your eyes and ears tuned and by performing 8 preventative maintenance steps.

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Car bodies

Tooling for forming high-strength material

December 11, 2007

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The demands are increasing for forming with higher-strength work materials, particularly for automotive applications because of their lighter weights. It can be a challenge to find a tool steel material that does not chip, crack, or wear when used on high-strength steels. This article compares various tool steel materials and how they stand up to the challenge.

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Stamped component figure 1a

Dissecting defects - Part III

December 11, 2007

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Editor's Note: This article is part of a three-part series. Part I categorizes defect types and discusses the factors that affect formed part quality; Part II covers various destructive and nondestructive tests for evaluating incoming material; and Part III is an introduction to process monitoring systems.

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Choosing between feeding your new stamping line coil or blanks?

December 11, 2007

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Stampers today need to process more grades and types of material than ever before, yet are under relentless pressure to reduce costs. They increasingly rely on systems integrators and equipment suppliers to design and install versatile stamping lines with quick-change capabilities. A notable case was that of a truck frame and chassis components manufacturer. It worked with vendors to develop a line that processes material up to 0.280 in. thick and 72 in. wide, in a range of yield strengths, in three forms – coil, blanks, or sheet.

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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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Dissecting defects

December 11, 2007

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Dissecting Defects is a three-part series.

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Rolling bolster die changes

Metalforming lessons learned abroad

November 6, 2007

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After World War II, equipment manufacturing companies in Asia and Europe designed production systems that were more flexible in nature than systems in the U.S., which were designed for high-volume production. Today this trend is hitting U.S. shores, and U.S. stampers are looking overseas for inspiration in finding ways to work more efficiently.

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Lubricant Waste

Reducing lubricant waste

November 6, 2007

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The best strategy for waste reduction is to reduce waste generation. Stampers have several strategies available, such as switching to metalworking fluids formulated for long life and instituting a fluid management and maintenance program.

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Compression deformation diagram

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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Untreated Staking Punch

Seeking tooling longevity

November 6, 2007

BorgWarner Inc., a drive-train developer and manufacturer of four-wheel-drive and traction control parts for the automotive industry, was having a problem with punches used to deform the ends of shafts (axles) in the reduction carrier and differential carrier.

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Stamped parts image

Stamping with third-generation dry-film lubricants

October 9, 2007

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A third-generation dry-film lubricants consist primarily of blends of various polar and low- to nonpolar plymers with different molecular weights. They are designed to form extremey thin, highly cohesive bonds to the metal surface. This article explains how they differ from previous generations of dry-film lubricants and presents several application examples.

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