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Choosing tungsten electrode type, size for aluminum GTAW

February 27, 2003

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I've heard different opinions about which size and type of tungsten electrode I should use to gas tungsten arc weld (GTAW) aluminum. Could you clear up this subject for me?As you know, we use direct current electrode negative (DCEN), or straight polarity, to weld steels and stainless steels. For...

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It's all about why

February 27, 2003

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Talk about a can of worms ... From crystalline structures to phase diagrams and interstitial solutions, from microstructures to allotropic transformations, it sometimes seems that for every question metallurgy can answer, for every problem it can solve, it creates two more.

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Preventing the loss of life and property

February 27, 2003

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The cost of industrial fires can be enormous in terms of fatalities, serious injuries, property loss, revenue loss, and the costs of replacing equipment and repairing or rebuilding facilities.

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Optimizing repair welding in oil refineries

February 27, 2003

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A refinery is a complex array of pressure vessels, piping, structural carbon steel, and other components that depends on welding for its structural integrity. A minor problem can have enormous cost and safety implications.

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Measuring Lubricants' Impact on Metal Formability

February 27, 2003

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Today more than ever, the metal forming industry is economically challenged. Everyone is scrambling to find new ways to lower process costs without sacrificing quality. In the case of metal formability, a lot is at stake. With metal prices and operating overhead continuing to rise, any downtime or wasted material significantly impacts the bottom line.

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CPR for your old CNC bender

February 27, 2003

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In the 1980s, when CNC machinery evolved, tube fabricators made the transition from manually forming each part to allowing a machine to form the parts unassisted. Now in the age of Windows®-based computers and brushless electric servo drives, these machines can seem like relics. But don't take them to the scrap heap just yet.

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Job Satisfaction—Part 3

February 27, 2003

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You've done some deep soul-searching and have a good understanding of why you're unhappy with your job. Now it's time to take charge of your future, to improve your work life and the quality of your life in general.

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Stamping press safety

Designing a stamping press for safety

February 27, 2003

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The design of every machine, no matter how simple or complex, requires attention to operator safety

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Everything you need to know about flatteners and levelers for coil processing—Part 4

February 13, 2003

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The best way to eliminate defects in coil shape is to buy prime material. What you get out of any leveler, flattener, or tension leveler is affected by the flatness of the material you put into it.

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Forget the ides of March, beware the forklift

February 13, 2003

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Each year in the U.S. nearly 100 workers are killed and another 20,000 are seriously injured in forklift-related incidents. Workers who operate or work near forklifts may be struck or crushed by the machine or the load being lifted. Most fatalities occur when a forklift that has overturned or fallen from a loading dock crushes a worker.

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How air forming works

February 13, 2003

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Air forming began its rise in popularity during the mid- to late 1970s, becoming the most prevalent method of forming on a press brake.

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Job Satisfaction—Part 2

February 13, 2003

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Something's very wrong. You approach each workday with dread. The ringing of the alarm clock is joined by your groans as you realize that you're heading out for another day on the job. You live for quitting time on Friday and begin the transition to depression mode on Sunday afternoon.

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Why use sheet hydroforming dies?

February 13, 2003

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Most automobile manufacturers have looked for alternatives to the steel traditionally used in car production; hence, the introduction of high-strength steel.

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The Palm House exterior view

Aluminum stands tall as a structural metal—Part 2

February 13, 2003

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Editor's Note: This is the second installment of a two-part article. Part I covers the properties, characteristics, and applications of aluminum as a structural metal. Part II explores the use of structural aluminum in the design of the U.S. Botanic Garden's conservatory in Washington, D.C.

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Controlling the costs of conflict

January 16, 2003

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Success in business depends on several issues, a key one being cost control. Yet many business people are oblivious to the negative impact that the costs of conflict can have on their bottom line. Many even think that they need not be concerned about conflict costs because, for instance, they don't have to deal with unionized labor.

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