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Specifying the sulfur content of 316L stainless steel for orbital welding

March 27, 2003

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The widespread use of autogenous (fusion) orbital gas tungsten arc welding (GTAW) in the high-purity semiconductor and biopharmaceutical industries, combined with modern steel refining technology, has made it both desirable and practical to supply type 316L stainless steel with a restricted range of elemental sulfur.

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The basics of roll form tooling design

March 27, 2003

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You can successfully roll-form a profile more than one way. In fact, many roll form designers take different approaches to design and development. Also, because the roll forming process has a seeming limitless capacity to produce complex profiles with just as many variables, many roll form designs are one-of-a-kind; therefore, theory can go only so far.

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The art of laser cutting

March 27, 2003

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Laser cutting continues to grow in popularity with sheet metal fabricators. With developments in speed, cutting quality, and manufacturing economy in laser cutting, today's manufacturers have more options than ever before from which to choose the optimal manufacturing method for their specific applications.

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Designing tooling economically

March 13, 2003

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With the tooling trade in its current challenging economic situation, some tool companies are being forced out of business, losing money, or entering into highly competitive markets.

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The Age of Cautious Optimism

March 13, 2003

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When it comes to the economy, cautious optimism is as good as it gets.

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Dealing with worker injuries

March 13, 2003

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This perception that keeping an employee working increases the probability that the employee will return to full duty quickly leads to some really creative efforts that focus on keeping the employee at work and keeping the numbers low.

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Software for abrasive water jet machines

March 13, 2003

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Software plays a key role in abrasive jet machining. Infact, it is only through software that precision abrasive jet machining truly is possible. Some of the most significant advancements in the industry have been in software.

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There are welders, and there are dobbers

March 13, 2003

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I once worked for an ironworker general foreman named Wheeler. He was a great guy to work for because he was good with the men, and he knew his stuff. When he told you something was to be done, you knew there was a good reason for it, and that he had thought it out carefully. That's what it's all about in the field, knowing your stuff.

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Psychology for the tool room

March 13, 2003

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As a consultant for the sheet metal stamping industry, I have had the opportunity to visit numerous stamping plants, die shops, and engineering facilities. One comment I often hear during these adventures is how arrogant or "know-it-all" some of the toolmakers or engineers are.

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Die designs for wide bends

March 13, 2003

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If you're a die designer, a standard precision progressive die can present countless challenges for you. Some of these dies have to produce thin slots, small holes, or tricky coins.

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Heating P91 boiler pipe

March 13, 2003

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In the power piping industry, turnaround time on a boiler pipe project typically is from 20 to 36 weeks. But J.F. Ahern Co. (JFA), Fond du Lac, Wis., a company ranked as one of the Midwest's top 10 mechanical contractors according to the May 2002 Contractor magazine, isn't typical. Neither were the results JFA achieved when it switched to induction technology for pipe preheating.

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Using precision abrasive wheel technology

March 13, 2003

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Precision abrasive wheel cutting is a small but important niche in the abrasive cutting field. It can be used to cut many types of parts, including metal rods, tubes, extruded shapes, and even wire. It is most useful in operations characterized by small parts, hard-to-cut materials, and tight tolerances.

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Coil joining criteria for tube and pipe mills

March 13, 2003

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A coil end joiner, shear welder, end welder, coil splicer, strip welder, shear and end welder, or butt welder—whatever you call it, it performs the same simple task coil after coil: It quickly shears strip ends, butts them, and provides a smooth ductile weld so that the newly joined coil can pass through a tube mill.

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Mechanized plasma cutting for HVAC applications

March 13, 2003

Just 20 years ago most heating, ventilation, and air-conditioning (HVAC) ductwork was cut by hand with snips and shears. Cutting out HVAC fittings was slow and labor-intensive. It took an experienced tinsmith with strong hands to slice through galvanized steel all day. It took even more skill to get the cuts and bends just right to coax flat panels of sheet metal into precise 3-D forms.

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H.L. Lyons Company

Folding technology opens doors for stainless steel appliance fabricator

March 13, 2003

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The H.L. Lyons Co., Louisville, Ky., began 40 years ago as an X-ray equipment company in the basement of Keith and Livingston Lyons parents' house. It later became a general metal fabricating business.

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