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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Press Parts

How to run presses faster without increasing scrap

July 29, 2008

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The catch to operating at higher production speeds is that metalformers often see jumps in scrap rates and accelerated wear-and-tear on the press and tooling. New, and some tried-and-true, mechanical press technologies help metalformers strike a balance between high speed and high precision.

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Advanced Stamping Feed Lines

Die shop transitions to production stamper

July 29, 2008

Third-generation die maker company, Die-Tech Industries needed automated press feeding equipment to help handle its transition from a die shop using tryout presses to one running full production.

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PVD Chromum Nitride Coating

Selecting, using tool coatings to stamp AHSS

July 29, 2008

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Proper selection and use of tool coatings in HSLA and AHSS forming applications will extend tool life and yield the best part results.

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Active leveling control interface

Applying parallelism technology in hydraulic presses

June 17, 2008

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Active leveling control (ALC) counteracts the negative effects of off-center loading; significant breakthrough shock common with high-strength steels (HSS); and reverse shock loading associated with nitrogen springs in dies.

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Die part hard marks

Reading progressive die strip — Part II

June 2, 2008

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Editor's Note: This is the second part of a two-part article about reading progressive-die strips. Part I, which appeared in the May issue, covered the causes of pilot hole distortion and mismatched cuts. Hard marks, otherwise known as coin marks, occur when metal is severely squeezed between two...

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Die part hard marks image

Reading progressive die strips — Part II

June 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. This Part II of a two-part series discusses hard marks, poor die design, and coil-related problems.

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Aida Stamping Press

Driven to integrate

May 13, 2008

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Changes come often in the steel industry--a business that sticks around long enough might eventually bear little resemblance to the version established at its inception. This is the case for Parkview Metal Products, Lake Zurich, Ill. The company opened in 1950 as a tool and die shop in Chicago, later moving and shifting its focus to automotive, electronic, and grill components. The company believes its culture is changing for the better and plans to continue developing its 5S initiatives, increasing its on-time delivery, and reducing its scrap rate.

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Quick die change components

How to implement quick die change

May 13, 2008

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Know you need to implement quick die change in your shop, but don't know how? Start here.

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Press window transfer system

Retrofitting a prog-die press for transfer operations

May 13, 2008

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Converting a current press to a transfer press requires altering the press, transfer dies, and the transfer system. Some presses are suitable for conversion, some are not. With a proper transfer retrofit, an old press can become a fully programmable state-of-the-art transfer press.

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Progressive die strips

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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Sensor driven errorproofing

Where sensors make sense

April 15, 2008

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Sensor-driven errorproofing can help metal stamping shops prevent the production of bad parts. In addition, it can save tens of thousands of dollars in lost production due to crashed dies and downtime. How? Sensors detect the presence of metal—as material being fed into the press, being positioned, or ejected from the press as a stamped part or slug.

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Coil automation

Rolling to market - Part II

April 15, 2008

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A variety of methods help push a roll forming operation's efficiency. Various coil handling methods offer different levels of efficiency and automation, each suiting certain applications. The key is to analyze an operation, calculate the time spent handling coil, and then determine the best level of coil handling automation to fit.

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Stamped struts shocks

Sensors clear the way for high-speed stamping

April 15, 2008

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When you stamp 100 million automotive parts annually, as does Tennessee Stampings LLC, Portland, Tenn., you might accept die collisions as just part of the "traffic statistics." Not so. Before the dies ever hit the high-speed presses, they are properly sensored to prevent downtime, accelerate production.

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B-Pillar simulation model

Lubrication and galling in stamping of galvanized AHSS

April 15, 2008

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Forming of galvanized AHSS involves higher contact pressures at the tool-workpiece interface compared to forming mild steel. Under these severe interface conditions, improper selection of lubricants, tool materials and tool coatings may result in high scrap rates and galling in stamping production.. Based on SDT results, polymer-based lubricant with EP additives and water-soluble DFL were found to be most effective, Synthetic lubricants showed also reasonably small frictional responses with a PVD coated die in forming GA coated strips.

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