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The heat is off

March 7, 2006

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To make a complex heat exchanger shell, a company produces a prototype model using the hydroforming process, analyzing fatigue, thinning, and cycle times to decide if the process will prove to be cost-effective.

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Staying grounded

March 7, 2006

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Because a typical arc welding setup may consist of several electrical circuits, it's critical to apply and maintain proper grounding methods within the welding area to promote electrical safety in the workplace.

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The need to feed aluminum

March 7, 2006

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While using aluminum can present challenges in any welding application, knowing the right questions to ask beforehand will help aid success. Issues include knowing what aluminum filler metal to use, how to store it, and what options are available to help eliminate feeding problems.

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How to avoid slit-in coil slitting problems

March 7, 2006

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Problems that can arise during metal slitting include poor edge quality, edge burr, edge wave, camber, crossbow, knife marks, and slit width that is out of specification. Some slitting problems can be attributed to poor metal quality; however, it is much more common for the problems to be caused by other variables and factors during the slitting process.

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Optimizing CO2 laser use: Part II

March 7, 2006

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As explained in Part I of this two-part series, many factors can affect laser processing efficiency. This article explains basic laser beam delivery requirements; discusses laser gases and supply methods; and lists common problems caused by using incorrect pressure, flow, and laser speed.

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Head of her class

March 7, 2006

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At a time when it's becoming more and more difficult to find skilled workers, it's encouraging to read about people like 18-year-old Jessica Jelinski who are studying and pursuing careers in metalworking. Jelinski is putting her welding training to good use winning competitions and working on interesting projects.

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Straightening mistakes

March 7, 2006

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As a consultant to the industry, the author has had the opportunity to discuss coil straightening and leveling with many people. In this article, he reviews 12 common misconceptions he has heard from those people.

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Stamping complex parts

March 7, 2006

By adding sophisticated hydraulic deep-draw press technology, Tools Inc. was able to greatly enhance its in-house forming and production capabilities.

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Anodizing aluminum

March 7, 2006

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Manufacturing deep-drawn aluminum containers requires various fabrication steps and provides many opportunities to pollute. Anomatic Corp. provides an overview of its fabricating and finishing steps and describes its efforts at environmentally responsible manufacturing.

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Plasma cutting with a robot

March 7, 2006

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Robotic plasma arc cutting can make cutting and weld preparation operations more flexible once you know which equipment, controls, and shielding gas will work best for your application.

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A new way to weld sheet metal

March 7, 2006

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Nu-Way Industries Inc., Des Plaines, Ill., learned that remote laser welding demonstrates impressive advantages over traditional resistance and arc welding for its applications.

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Taking the danger out of bottom bending

March 7, 2006

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It is all too easy to ruin a tool or upset a ram if bottom bending is done incorrectly, which is why many manufacturers do not recommend bottom bending when using their equipment or tooling. Understanding V-die selection and the effects of your decisions should be first and foremost in any bending operation, including bottom bending.

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Guidelines for tungsten electrodes

March 7, 2006

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Choosing one of the six commonly available tungsten electrodes is a crucial first step in successful gas tungsten arc welding (GTAW). In addition, tip preparation is critical. The electrode choices are pure tungsten, 2 percent thoriated, 2 percent ceriated, 1.5 percent lanthanated, zirconiated, and rare earth. The end preparations are balled, pointed, and truncated.

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A tale of two welders

March 7, 2006

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George Bright and David Anthony were two welders with the same goal: to upgrade their GTAW system. Learn about their experiences and gain some insight into what you need to know to upgrade from an air-cooled to a water-cooled GTAW system.

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Factory orders fell sharply in January

March 6, 2006

New orders for manufactured goods in January, down following three consecutive monthly increases, decreased $18.9 billion or 4.5 percent to $398.2 billion, the U.S. Census Bureau reported today....

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