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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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Uncoiler Machine

Special slitting for specialty metals

March 13, 2003

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Many of today's consumer products, commercial and industrial processing machines, and automotive components are being exposed to continually higher temperatures and more severe corrosion.

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Does your tube travel more than you do?

February 27, 2003

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The level of technology used these days in the tube and pipe fabrication industry varies quite a bit in terms of age. Some of it is a bit antiquated, to put it kindly. Many tube fabrication shops use equipment that is more than 50 years old.

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Removing scrap efficiently during stamping

February 27, 2003

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Since the early days of metal stamping, removing scrap from stamping dies and presses has caused many headaches. Because scrap is not the primary product companies produce, it receives less attention than the finished products coming off the press.

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Don't lose your bearing!

February 27, 2003

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It's Monday morning after a long holiday weekend, and the first shift is starting with a bang. The slit coil supplier is late with your delivery, the second-shift maintenance person has called in sick, the mill operator is going to be late to work, and you wish you were still at the beach with the family.

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Laser system saves damaged military parts from the scrap heap

February 27, 2003

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At military installations across the country, repair personnel struggle to stretch the life spans of vital pieces of equipment. Sometimes welding can extend the life of damaged components in aircraft, tanks, and other military vehicles. But in some cases, high–temperature welding processes do more harm than good, warping and weakening delicate metal components. Previously such components would be classified as irreparable and replaced with pricey new parts.

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Advanced roll forming troubleshooting

February 27, 2003

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When troubleshooting a roll forming operation, you first need to make sure the roll form tooling is designed and built properly and will produce a quality product when all the conditions are correct.

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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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