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R&D Update: Servo press forming applications - Part II

April 10, 2007 | By Taylan Altan, Ph.D.

Servo presses are classified into two main types based on their drive systems: direct drives with high-torque, low-speed servomotors, or low-torque, high- speed servomotors.

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Steel thixoforming

April 10, 2007 | By Todd Helms

The demand for lightweight, high-strength components is increasing at the expense of traditional steel parts. Emerging technologies, such as steel thixoforming, may help reverse this trend. Thixoformed steel parts are significantly lighter than equally strong parts formed by conventional means.

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Die Basics 101: Part XIII

April 10, 2007 | By Art Hedrick

Figure 1 Pinch trimming die design Various specialty metal cutting methods are used in stamping operations. Among them are pinch, breakout, and shimmy. Pinch Trimming Pinch trimming is a special method in which the vertical walls of a drawn or stretched vessel are cut by pinching...

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Line tension roll

A guide to fabric slitting line tension rolls

April 10, 2007 | By Jim Rusczyk, Douglas Goetz

Coil processors have several choices in the rolls they use to put tension on the coil. One of these choices is a pair of nonwoven rolls. They act like sponges in that they remove lubricants, dirt, and metal fines from the metal. Understanding how nonwoven rolls are constructed and how they work can help coil processors extend their service life.

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Die Science: Developing forming dies - Part I

April 10, 2007 | By Art Hedrick

Determining the best die geometry to produce multicontoured formed parts can be difficult. A full understanding of the drawing and stretching process is necessary, as well as a good understanding of all tooling factors to make complex geometries.

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Multicut blanking line

Reducing scrap, inventory costs with coil optimization software

April 10, 2007 | By Lloyd Wolf

Coil optimization software is a valuable tool that fabricators can use to attack the problems of high scrap and high inventory. It offers the ability to quickly and easily make sound decisions regarding the purchase and use of master coil sizes. By using computers and specialized optimization algorithms, fabricators can minimize manual selection of coil sizes.

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R&D Update: Servo press forming applications - Part I

March 13, 2007 | By Taylan Altan, Ph.D.

A servomotor gives a press slide motion flexibility in terms of accurate speed, motion, and position control. This flexibility produces infinite slide motion variations that may improve part quality and operations such as painting and assembly during one press stroke.

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Roller leveler

Roller leveling 101

March 13, 2007 | By Brownie Cox

Every metal coil has unique characteristics. Leveling is achieved by precisely bending metal strip back and forth as it's passed through a series of small-diameter offset rolls.

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Tool steel damage

Die Science: Tips for grinding and wire machining tool steel

March 13, 2007 | By Art Hedrick

How tool steel is machined can make a big difference in its performance and life. A poor grinding job might look good, but unseen stress can cause premature failure.With the correct grinding and wire burning techniques, tool steel results can be optimized.

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Blanking line controller

Automotive blanker presses on

March 13, 2007 | By Dan Davis

Amidst the bad news associated with Ford Motor Co., good news is surfacing in Jeffersonville, Ind., home of Kasle Metal Processing. The company is using a software tool to ensure it is operating as efficiently as possible as it heads into one of its busiest months ever.

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Vertical dereeler

The big payoff

February 19, 2007 | By Tim Malarky

Traditional coil slinging and hoisting for vertical dereelers and positioning them in coil cradles requires extra personnel and is time consuming because production must be stopped. When a line isn't running—it's not making any money. To keep your line moving, consider a pallet uncoiler.

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Draw Forming, Part VII

February 13, 2007 | By Edmund Herman

Setting the processing variables is different between the net shape and non-net shape processes. While non-net shape variables have to be programmed constantly to change the tool's position in space to follow the unique shape of the part being made, the shape of the part for the draw forming net shape process is built into the die.

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Roller lubrication system

Cleaning up

February 13, 2007

Excessive fluid on finished parts, which required secondary cleaning operations, and additional cleaning of floors, aisles, and racks in the areas where parts were moved and stored were remedied by installing a roller system with a programmable controller.

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Die protection

Protecting metal stamping dies

February 13, 2007 | By Karen Keller

One of the most difficult problems to overcome in any die protection application is protecting the components from the environment in which they must function. In a typical stamping application, oils, coolants, and other liquids and lubricants often are present that can wreak havoc on components.

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spring pins

Die Basics 101: Part XII

February 13, 2007 | By Art Hedrick

Slug pulling, which occurs when scrap metal—the slug—sticks to the punch face upon withdrawal and comes out of the button, or lower matrix, is a serious problem that can damage parts and dies. Various methods can help reduce the occurrence of slug pulling. Air Vents Putting air vents in...

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