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Manufacturer revives stamping department with overhaul, press rebuild

November 11, 2015 | By Kate Bachman

Quality Industries made a U-turn on its decision to let its stamping department stall and has reignited the department’s restart with a press retrofit, quick die change (QDC) equipment, and a new press.

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Servomechanical press makes foray into hot stamping

October 26, 2015 | By Aitor Ormaetxea, Gorka Ibañez

As corporate average fuel economy (CAFE) standards require increasingly lighter vehicles, stamping manufacturers look for innovative ways, such as hot stamping, to form increasingly harder metals. Hydraulic presses have been the default technology for hot-stamping presses. Now servo-mechanical presses have entered the arena that hydraulic presses previously soloed, offering improved energy efficiency, cycle time, and reliability.

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How lubricant roller application systems reduce friction without the oil slick

October 22, 2015 | By Kyle Billin

Applying the right amount blots waste, cost. Roller lubrication systems apply lubricants in a consistent film across the coil.

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Freeing space for metal fabrication

October 19, 2015 | By Tim Heston

In a few years Performance Stamping may well be a very different company. It recently cleared away inventory to free space not for more stamping, but for metal fabrication.

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Zigzagging your way to material savings

October 8, 2015 | By Robert Allred i

Zigzag feeds are being used increasingly for some applications. Stampers can achieve multi-out results using a one-out die.

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R&D Update: Determining flow stress data by combining uniaxial tensile and biaxial bulge tests

October 8, 2015 | By Ali Fallahiarezoodar, Taylan Altan, Ph.D.

In the sheet metal forming industry, finite element (FE) simulation is an important tool for fabricators predicting metal flow, optimizing geometry, and selecting process variables before developing new dies. The accuracy of the simulation results depends highly on the accuracy of the input...

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Die Science: The top 5 drawing die violations

October 6, 2015 | By Art Hedrick

Deep-drawing failures—from splitting to scoring to shock lines—often are a result of common engineering mistakes. These problems can occur whether you are using a single-station drawing die, multiple drawing stations, or drawing reductions. Let’s take a look at the five most common...

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Ask the Stamping Expert: What is the best method for selectively removing burrs from stamped holes?

October 5, 2015 | By Thomas Vacca

Q: We receive high-volume, high-precision, low-cost stamped parts from a vendor. The oval-shaped parts come with burrs that we need to remove from the inner holes, but we cannot round the outside part edges. The cold-rolled steel parts have two sets of holes with different diameters stamped through...

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Metal stamper takes to the lake

September 8, 2015 | By Dan Davis

Kenmode Precision Metal Stamping, Algonquin, Ill., displays strong design and manufacturing skills in the creation of a cardboard catamaran for the 31st America’s Cardboard Cup Regatta at Crystal Lake, Ill., earlier this summer.

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R&D Update: Forming aluminum alloys at elevated temperatures, Part II

July 1, 2015 | By Taylan Altan, Ph.D., Long Ju

Elevated-temperature (ET) forming of aluminum can be accomplished isothermally or nonisothermally. In isothermal warm forming, the die, blank holder, and punch are heated. In nonisothermal deep drawing, the die and blank holder are heated, and the punch may or may not be cooled. The die and punch...

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Die Science: Drawing and stretching

July 1, 2015 | By Art Hedrick

When I conduct training seminars on drawing and stretching, I usually bring with me a variety of unusual parts made using those processes. Often, attendees ask how to stretch the metal into a shape such as a deep can or deeply formed part without splitting the metal. I simply answer: “We don’t....

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Ask the Stamping Expert: How can I evaluate the performance of recycled lubricant in-house?

June 29, 2015 | By Thomas Vacca

Q: I have an issue regarding the consumption of stamping lubricant in our facility. The toolroom is requesting to use only new lubricant rather than recycled, as well as a richer lubricant mix in some tools. This is increasing our lubricant and disposal costs. Is there a test that I can perform...

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R&D Update: Forming aluminum alloys at elevated temperatures, Part 1

June 11, 2015 | By Taylan Altan, Ph.D., Long Ju

To reduce vehicle weight, automotive manufacturers are using advanced high-strength steels (AHSS) and aluminum alloys, formed at room temperature, as well as hot stamping of boron steels. A few OEMs and Tier 1 suppliers also have started warm forming aluminum alloys, usually 5000 and 6000 series,...

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Die Science: Slug pulling—Causes and solutions

June 11, 2015 | By Art Hedrick

Slug pulling in a stamping die can be costly and frustrating. One pulled slug can cripple production. What Is Slug Pulling? When a pierce punch creates a hole, it also produces scrap, called the slug. When the slug sticks to the face of the punch during withdrawal or comes out of the button...

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Ask the Stamping Expert: Upfront spending reaps long-term savings

June 10, 2015 | By Thomas Vacca

Q: The cost of building new progressive dies has gone up substantially in the past few years. I am struggling, and in many cases lose money, on my tool builds. How is the industry expected to cope? A: This is a common problem throughout the metal stamping arena. It’s not easy to remain...

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