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November 4, 2015
In welding high-purity and ultrahigh-purity piping systems, quite a bit of the welder’s time is idle, time spent waiting for the purge system to remove the oxygen from the system. Most purge dams mark or scratch the pipe’s ID, neither of which is acceptable on HP and UHP systems. This led to the development of a purge dam specifically for these applications.
November 2, 2015
Exercise equipment manufacturer Cybex International makes workout machines with tubular frames from parts it bends in-house. The company has quite a bit of bending expertise, but one problem it couldn’t resolve was the bending of short lengths. A custom-made bender from Unison provided Cybex with the capability it needed.
October 27, 2015
Metal fabricators have been using CO2 lasers for decades and fiber lasers for years, but these technologies aren’t optimal for making the ultrafine features needed for medical devices such as catheters and stents. Femtosecond disk lasers recently have emerged as a viable technology for such applications.
October 27, 2015
Electropolishing isn’t necessarily a standalone process; it often complements mechanical finishing. This article examines how two processes provide levels of smoothness, cleanliness, and corrosion resistance beyond those provided by mechanical finishing alone, as it applies to stainless steel base materials.
September 8, 2015
Although the causes of corrosion have been researched and documented, advanced tools are helping to expand the understanding of corrosion behavior. Magnification by a scanning electron microscope and analysis by energy dispersive spectroscopy are modern tools that help to improve the understanding of corrosion mechanisms.
September 3, 2015
Evaluating a new lubricant for drawing tube can be a lot of work, but breaking it down into a series of small evaluations can make it easier to manage. A complete trial involves applying the lubricant, drawing the tube, removing the lubricant, and disposal.
September 2, 2015
Under the stewardship of founders Larry and Gloria Dlouhy, Superior Tube Products grew from a small proprietorship into a midsized fabricator. It is entering its 25th year in business with a new management style, a new strategy, and a new outlook on the future.
September 1, 2015
Orbital welding is a straightforward concept, but the many choices in joint design and equipment features can turn even a simple orbital welding project into something complex. Industry veteran V. John Jusionis discusses three common joint designs and several key equipment features to produce a successful outcome.
August 25, 2015
Cladding, often used in manufacturing or repair, is a good way to conserve an expensive alloy. Weld cladding techniques can be manual or automated. A conventional automated technique is submerged arc strip cladding (SASC), but this isn’t the only process. Electroslag strip cladding (ESSC) is a viable alternative.
August 24, 2015
When Grant Mallicote’s father had a bumper-crumpling collision on the family’s ranch, Grant figured he could save his dad a few dollars by fabricating a replacement bumper. He used some tube, plate, a welding torch, and some ingenuity to make a bumper, and eventually it became a bumper business, Bodyguard Truck Accessories.
August 24, 2015
When oilfield components and systems supplier Tri-Alta used an old manual band saw for cutting tube to length, it experienced no shortage of difficulties in blade failures, inaccurate cuts, and part misalignment. The company invested in a modern band saw from Behringer with automated downfeed pressure sensing, blade tension monitoring, and a material handling system.
July 21, 2015
A golf club shaft looks like an ordinary tube, but it’s not. Quite a bit of engineering goes into manufacturing the tube and drawing it so it has the optimal characteristics—lightweight without being flimsy and elastic enough to pack a wallop. Editor Eric Lundin interviewed Scott Cokeing, director of engineering and global quality True Temper Sports, about one of the company’s manufacturing processes, variable wall technology.
July 16, 2015
Before purchasing a 3-D CNC cutting system from HGG, oil rig builder Orion outsource quite a bit of its work. In addition to being at the mercy of its subcontractors’ lead times, Orion had to deal with their quality, which often wasn’t sufficient. The machine has been such a productivity enhance that Orion estimates the ROI period to be one year.
July 15, 2015
Horsch Maschinen GmbH, an agriculture implements manufacturer, experienced corrosion problems related to the tubular couplers used for its hydraulic systems. It switched to couplers manufactured by Voss Fluid GmbH, which are much better at standing up to the corrosive effects of common fertilizers.