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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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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American Standard's facility

A new standard in forming bathtubs

October 9, 2007

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The main hurdle to automating American Standard's bathtub forming line in its Salem, Ohio, facility was integrating new material handling tools into the older press line.

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Ridin the storm out

Ridin' the storm out

October 9, 2007

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While other automotive suppliers are struggling or going under, Tier II supplier of ride control components Tennessee Stampings established a lean program that merited a regional manufacturs' award and helped them grow 23 percent per year.

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Ridin' the storm out Part III

October 9, 2007

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Automotive Tier II supplier of ride control components Tennessee Stampings installed an 800-ton transfer press to get to get new business from European customers, and expanded its facility to accommodate the new press, as well as a new underground conveyor system.

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Stamping quality defects

Dissecting defects - Part I

October 9, 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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Rotary rocker benders

Die Basics 101: Part XVI

October 9, 2007

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Part XV of this series described several bending methods—wipe, coin, relief, pivot, and V. It also discussed springback and how to compensate for it when using these methods. This article focuses on other bending processes. Keep in mind that the key to success is to design the bending process so...

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Clean straightening head

For flawless cosmetic finish, start at the head

October 9, 2007

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Stamping cosmetic parts in coil feed lines can be challenging. Cleaning the coil feeding head properly can eliminate waste or scrapped parts caused by debris and contamination.

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Retrofit Rxfor automaker's aging press

October 9, 2007

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An automotive OEM's 4,000-ton transfer press produces parts with difficult draws, such as pickup door panels, in the 1,600-ton first station. Facing problems finding obsolete parts for repair and also considering crucial performance requirements in that first drawing operation, the automaker had Schuler Inc. upgrade the press with a modular hydraulic bed cushion.

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Adhesive Galling

Finding, addressing the root cause of die galling failures

October 9, 2007

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There is no best tool steel type, coating, or way of keeping the punches from breaking. The best solution for each of these problems can be found by collecting specific data with respect to why each of the problems occurs

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Stamping manufacturing

6 ways to focus on slitting lines

September 11, 2007

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By improving entry coil storage, coil inside diameter (ID) changes, slitter tooling changeover, scrap handling, and strip tensioning, you can slitting line efficiency.

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