The tube and pipe fabrication technology area covers sawing (band, circular, and friction) and other cutting processes, such as abrasive, flame, laser, oxyfuel, plasma, and waterjet. It also discusses forming processes, including bending and end forming. Finally, it includes a handful of miscellaneous processes, such as trimming, beveling, finning, grooving, threading, and spinning.
February 24, 2014
Although tube bending technology has evolved significnatly over the years, the process still boils down to four factors: the material, machine, tooling, and lubrication.
January 13, 2014 | By Eric Lundin
Need to connect a flexible hose to a rigid metal nipple? The worm gear clamp has been the standard for decades, but they aren’t ideal for the soft, thin-wall tubing used in aircraft environmental control systems.
September 2, 2013 | By A. Erman Tekkaya, Dr.-Ing., Armin Schmidt, Dipl.-Wirt.-Ing., Bernd Engel, Univ.-Prof. Dr.-Ing., Christian Gerlach, Dr.-Ing., Christian Mathes, Dipl.-Ing., Christopher Kuhnhen, Dipl.-Wirt.-Ing., Matthias Hermes, Dr.-Ing., Michael Rohrmann, Dipl.-Wirt.-Ing.
Fabricators have quite a few bending processes to choose from—rotary draw, compression, hydraulic ram, and so on—and the variety of bent components is infinite. Matching a process to a specific application isn’t easy, and only will become more difficult as the use of tube and profiles continues to spread. This paper shows how fabricators can classify bend criteria to determine the optimal process.
When welding process pipe, welders need to determine which wires can provide the most appropriate results for every weld pass—root, fill, and cap—and be certain that they are selecting the highest-quality filler metal.
July 8, 2013 | By Eric Lundin
After decades of using an old manual tube bender with no features, Kress Corp. took a huge leap in technology when it purchased a new bender with CNC, full-color interface, and stacked tooling capability. The result is a 10-fold productivity improvement.
June 28, 2013 | By Eric Lundin
After his yacht-building business dried up in the wake of the 2008 financial crisis, entrepreneur Scott Gerber decided to build a simple sculpture from tubing. Based on a basic stick figure, the first one was a fisherman. Gerber placed a few around town, encountered some interest, and suddenly a new business was born.
June 3, 2013 | By Eric Lundin
When Industrial Laser Systems was asked to fabricate a tubular frame for a military vehicle, it rose to the challenge to cut, makes some holes, bend, and swage the tube ends. The result is a tubular frame that is affixed to the outside of patrol vehicles; combined with Kevlar® netting, the system prevents explosive projectiles from hitting the vehicle, with great success.
April 30, 2013 | By Dave Erickson
A tube is a tube, as most in the industry would declare. But getting that tube from point A to point B isn't a simple proposition. That's why fabricators need to keep in mind key factors when looking to set up a material handling system for a tube cutting operation.
April 17, 2013 | By Eric Lundin
Industrial Laser Solutions, Atlanta, has carved out a niche as a firm that engineers and develops its own products. During the downturn that followed the financial crisis of 2008, the company decided to take on some additional work, and it found itself in the fabrication business. This article tells the story of its first fabrication project, including some problems and practical solutions.
April 8, 2013
Mining equipment has to take a beating more so than most other types of industrial equipment. Constant exposure to heat, dust, dirt, and debris means that mining equipment has to be built to last. When the Goodman-Hewitt branch of Joy Global looked to upgrade the machines it uses to make conveyor components for this industry, it looked for a cutoff machine that would hold tight length and squareness tolerances for this severe environment. Its search led it to Hautau Tube Cutoff Systems Inc.
December 3, 2012 | By Eric Lundin
After getting a start in the handrail business in 1990, Sharpe Fabrication Inc. relaunched itself in 1994 as Sharpe Products and started to offer general fabrication services. Two of the company’s investments, a free-form bender and a fiber-optic laser machine, reflect the company’s interest in staying abreast of technology developments.
The second-hand market can be a good source for a used bender, but buyers must be careful. A thorough evaluation of the bender’s capabilities and condition is necessary before making a purchase. Because modern benders are complex and sophisticated, the evaluation is best carried out by the manufacturer, not the buyer. Another option is buying a reconditioned machine from the manufacturer. However, depending on the bending needs, a new bender might be the only viable option.
September 7, 2012 | By Eric Lundin
SF Tube Inc., a fabricator that does a substantial amount of bending, found itself facing a perfect storm—it had quite a bit of manual equipment, it often had to use two or three benders to make a single component, its bend-splice-weld-grind-polish-blend process for many components was too time-consuming, its shop floor was crowded with machines, and its niche as a specialty bending house meant it was positioned for future growth. A new bender, one that provides both rotary bending and roll bending, eliminated these hassles and has positioned the company to take advantage of growth opportunities.
September 3, 2012 | By Eric Lundin
A bit about cutting tube and pipe from an interview with Bruce Benedict and Dave Clarke of Production Tube Cutting.
July 16, 2012 | By Eric Lundin
Hautau Tube Cutoff Systems LLC turned the lathe concept on its head when it developed a machine that holds tube steady and uses tooling that orbits the workpiece. This concept, coupled with a handful of other innovations developed over the Hautau brothers’ professional careers, make these machines unique in how the perform recut operations.