Tube and Pipe Production Articles

The tube and pipe production technology area encompasses mills and all of the equipment that makes a mill run successfully: tooling, welding units, nondestructive testers, bundlers, scarfing equipment, straighteners, scrap choppers, and washing systems.

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Small manufacturer, big output

August 29, 2016 | By Eric Lundin

James Steel & Tube isn’t the biggest, most high-profile tube producer, but because it is a small company, it is extremely versatile. It has gone through several transformations since it was founded in 1961, and under the guidance of current president Jim Petkus, it is going through another transition.

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Building bridges for the 21st century and beyond

July 7, 2016 | By Eric Lundin

Fabricator and bridge erector used oxyfuel for years, but changed to plasma and benefitted from faster, more precise cuts.

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Pros and cons of commercial specifications for tubular products

February 10, 2016 | By Eric Lundin

Modern, mass-produced tube and pipe products come in three main varieties: extruded, welded, and drawn over mandrel. The standard specifications that apply to the most common type, welded, occasionally come under scrutiny. Are commercial tolerances tight enough? Editor Eric Lundin captured a discussion on this topic at TPA’s 2015 conference, Pipe & Tube Lincoln (Sept. 23, Lincoln, Neb.)

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Sound waves determine weld soundness

January 19, 2016 | By Seth McGuire

Traditional ultrasonic systems use piezoelectric transducers to generate sounds waves and a couplant—a liquid—to provide a pathway for the sound waves to pass from the transducer to the material under test. An electromagnetic acoustic transducer is an alternative technology, one that uses two electromagnets to generate the sound wave in the part to be inspected. This eliminates the couplant, which can interfere with the test process.

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Oil country tubular goods hit a rough patch

October 28, 2015 | By Dan Davis

An industry observer says the OCTG industry is in “turm-oil,” which is hard to dispute. Falling prices, a global economic slowdown, and an excess of supply is going to keep the industry down for the near term.

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Detecting steel tube and pipe corrosion using SEM analysis

September 8, 2015 | By Gert Jan Streefland, Glen May

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.

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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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Minimizing scrap on laser welding mills

July 9, 2015 | By Eric Lundin

Laser welding on a tube or pipe mill wouldn’t be very effective without a good control system. Eric Lundin interviewed TRUMPF to learn about the capabilities of the company’s SeamLine and SeamLine Pro systems.

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Troubleshooting, traceability for tube, pipe producers

June 2, 2015 | By Pierre Huot

The adage “two heads are better than one” can be applied to tube and pipe mill monitoring systems. Monitoring the forming process is a good idea, and monitoring the welding process is too, but using a combination system that measures both yields additional benefits.

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Best coolant practices make perfect

May 28, 2015 | By Steve Lowery

Taking all of the necessary parameters into consideration when designing a tube or pipe mill can be a big task, but it doesn’t have to be overwhelming. The main considerations include all of the cooling system capacity and location, the type of coolant, the filters and skimmers to be used, and local water quality. Making these decisions early, and incorporating them into the mill’s design, maximizes the cooling system’s efficiency.

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Measuring weld heat to evaluate weld integrity

May 14, 2015 | By Dr.-Ing. Volker Schauder

Eddy current and ultrasonic testing are suitable for tube and pipe mills and have been used for weld seam flaw detection for decades, but a new process, thermography, is an alternative. By measuring the heat signature of the weld seam as it cools, it provides information about weld integrity at and below the surface.

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Choosing a welding process for tubular profiles

May 14, 2015 | By Mark Prasek

Roll formers that want to branch out to welded profiles need to know about the main welding processes – GTAW, laser, and induction. This article compares and contrasts each process so roll formers can determine which is best for particular applications.

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Spiral pipe welding automation drives productivity

April 23, 2015 | By Don Schwemmer

To meet demand from the petroleum industry, spiral pipe producers have turned to advanced automated systems to ramp up production

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Using laser velocimeters to improve tube and pipe production

February 4, 2015 | By Peter Nawfel

Accurate and reliable length and speed measurements are critical parameters that help tube and pipe producers increase yield, improve quality, and reduce production costs. The relentless improvement in electronic technology, accompanied by falling prices, have made laser-based measurement systems more capable and affordable than ever before.

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Producing stainless steel tubing for the medical industry

January 20, 2015 | By Michael Ferreri

Industry veteran Michael Ferreri provides an overview of the common methods of producing small-diameter stainless steel tubing for medical applications

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