Tube and Pipe Fabrication Articles

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.

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Refueling, repairing, refurbishing, redeploying a supercarrier

February 10, 2016 | By Eric Lundin

Every aircraft carrier is built to last, and the nuclear propulsion systems mean they don’t need port calls to fuel up, but even the most well-built and durable carriers need an overhaul after 25 years at sea. Editor Eric Lundin visited the USS Abraham Lincoln, CVN 72, to learn about the refueling and complex overhaul process from contractor Newport News Shipbuilding.

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Improving 400 series weld seams in tube, pipe production

February 3, 2016 | By Cary B. Long, Dr. Yehuda Baskin

Chromium is a miracle element when added to iron, combining with oxygen to form chromium oxide, the compound that prevents rust in stainless steels. The downside is that it also impedes bonding, making stainless difficult to weld. Using a flux can help by improving weld quality and allowing faster welding speeds.

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Structural tube fabrication: Getting a solid connection for HSS

February 1, 2016 | By Tim Heston

One architectural fabricator has developed a connection and fabrication system for the modular construction of hollow structural sections, or HSS. Such connections show just how efficient modular construction can be.

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Acoustic mapping finds defects on tube, pipe ID

January 14, 2016 | By Tom Adams

Acoustic microimaging has long been used to find inclusions and voids between two bonded tubes or pipes. A new application for this technology precisely measures the wall thickness along the entire length of a tube or pipe.

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Custom-made tube bender handles challenging shapes, eliminates scrap

November 2, 2015 | By Eric Lundin

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.

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Don’t be drawn in by an offer too good to pass up

September 3, 2015 | By James Brooks

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.

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A little fabricator grows up

September 2, 2015 | By Eric Lundin

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.

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Making joint design, equipment choices for successful orbital GTAW

September 1, 2015 | By Timothy Gittens, V. John Jusionis

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.

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Electroslag cladding provides alternative to standard cladding techniques

August 25, 2015 | By Peter Jeirud, Pieter Keultjes

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.

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Business as usual versus a change for good

August 25, 2015 | By George Winton

Columnist George Winton discusses a way to combine two operations into one seamless process by adding a drill to a CNC tube bender.

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Bending one bumper at a time

August 25, 2015 | By Eric Lundin

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.

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Harvesting a bumper crop of bumpers

August 24, 2015 | By Eric Lundin

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.

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Minimizing effort, maximizing distance

July 21, 2015 | By Eric Lundin

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.

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Orion Drilling Co. has rigs, will travel

July 16, 2015 | By Eric Lundin

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.

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Keeping it together at 330 MPH

June 29, 2015 | By Eric Lundin

Top Fuel races are a dazzling sight, covering 1,000 feet in little more than 3 seconds. The drivers get the glory and the engines get the attention—they develop approximately 10,000 horsepower—but underneath the car’s exterior is a marvel of modern engineering: a tubular chassis that somehow holds together through 4G of acceleration during the race and the even harsher 5G of deceleration when it’s over.

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