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Stamper performs subassembly superbly

May 21, 2015

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DieMasters Inc. grew from a small diemaker shop to a 100-employee stamping contractor. The company added value to its bottom by making assemblies, which now comprise 70% of its revenue. The assemblies are a metaphoric representation of the company itself, which makes products diverse in every way possible—size, type, market, materials, complexity. While Diemasters’ success is the result of a concerted effort, President and CEO Virgil DeLay pulls the company together and keeps the band on cue with a well-defined production system.

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Vision-guided robots consolidate their place in the press shop

May 13, 2015

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Advancements in robotic technology are extending their functionality and improving their performance. Often a robot is expected to do more than move from programmed position A to position B; it must operate “smarter” and act upon other inputs, such as vision systems or force feedback. The applications for integration of vision systems and robots are almost endless but the most common application is vision guidance for the robot

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Large-bed servo press line enhances auto supplier’s efficiency

May 12, 2015

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Automotive supplier of seating components Paul Craemer GmbH of Herzebrock-Clarholz, Germany, replaced two presses lines requiring press-to-press automation with one 35-foot tall, 48- by 25-ft. servo transfer press.

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Ask the Expert: Increasing progressive-stamping tooling life with the right lubricant

April 15, 2015

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I get a lot of questions regarding how to maximize the life of progressive-stamping tooling, but no one response fits all. We talk a lot about tooling materials, heat treatment, and coatings. But time and again, stamping lubrication is treated as relatively insignificant. Stampers put little...

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Ask the Expert: The continuing challenge of die maintenance

April 15, 2015

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Q: I have been trying to locate the die maintenance check list printed in a STAMPING Journal® article several years ago, which also included the 10 Tooling Laws. I am hoping you can lead me to it. A: You will find the check list at the end of this article. But even with a maintenance check...

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Ask the Expert: Determining stock width for stamping a part in a progressive die

April 14, 2015

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Q: How do I define the width of the metal stock required to stamp a part in a new progressive die? A: You need to consider a lot of factors when determining stock width for stamping a part in a progressive die. I assume your question on the stock width is so you can estimate the raw material...

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Ask the Expert: Fixing die shortcomings

April 14, 2015

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Q: We have a large stamping tool running in a 300-ton press. A changeover tool makes a left part and a right part, each of which is about 0.1 in. thick and shaped like a peanut. One-half of the part (lengthwise) is coined offset one material thickness in depth in addition to a number of other...

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Improving the performance of transfer dies

April 1, 2015

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The use of high-strength work materials has dramatically increased the performance requirements on the stamping and forming tools. The selection of the proper tool steel grade at each transfer die station plays a large role in optimizing productivity. The tooling’s performance may be enhanced further with the addition of a coating.

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WorldAutoSteel Guidelines for AHSS shed light on lightweighting

March 25, 2015

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Advanced high-strength steels are made differently in the steel mill, and they need to be processed differently in part manufacturing. WorldAutoSteel released forming and welding guidelines intended to help the users of these products work through the differences.

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5 ways to get the most out of your servo press

March 13, 2015

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To make the best use of servo technology, you must have the best practices, best people in place with ongoing training and support. The first step in getting more out of the servo press is understanding your current processes and their pain points; know your press's capabilities; and understand the critical tolerances for the part--and how servo presses can help overcome limitations.

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R&D Update: Heat generation in forming of AHSS

March 10, 2015

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Advanced high-strength steel (AHSS) materials are multiphase steels that contain martensite, bainite, and/or retained austenite. The use of AHSS materials in the automotive industry is increasing every day, because these steels provide strength and satisfy functional requirements at reduced weight....

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Die Science: Step-by-step troubleshooting of stamping dies, Part I

March 6, 2015

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Opinions on how to troubleshoot a stamping operation are not in short supply at any production stamping or die-building shop. I’m not trying to stereotype diemakers, designers, or technicians, but their decisions often are made based on insufficient data. Statistically speaking, if I...

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Die Science: Step-by-step troubleshooting of stamping dies, Part II

March 6, 2015

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In Part I of this article, which appeared in the January/February 2015 issue, I discussed the first two basic steps in troubleshooting: Identify problems with the part and verify the die and press setup parameters. Following are the remaining seven steps in the process. Step 3—Reassess and...

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Ask the Stamping Expert: Stamping thin, hard stainless steel

March 6, 2015

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Q: We recently received an order for domed spring washers stamped from 0.0010-inch-thick 301 1/2 hard stainless steel. The parts are about 0.250 in. OD and have two 0.006-in.-diameter pierced holes on a 0.150-in.-dia. circle centered on the part. We usually do not stamp anything less than 0.010 in....

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R&D Update: Examining lubricant performance in forming of AHSS

February 5, 2015

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Lubrication plays an important role in stamping, as it reduces friction at the tool-workpiece interface. Reducing that friction also reduces die and tool wear in large-volume production, which in turn increases tool life. It also allows smoother flow of the sheet material into the die cavity and...

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