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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Getting a handle on robotic tube, pipe automation

April 15, 2002

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The requirements and parameters of automated handling of tubular products are worth a second look, especially if you want to do the job well.

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End forming of square and rectangular tubing

April 15, 2002

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End formed tubes are used increasingly in industries as diverse as automotive, furniture, appliance, sporting goods, construction equipment, and temporary buildings. With recent developments in new forming techniques to produce accurate, finished parts at high volumes without scrap, end formed parts are replacing some conventionally machined components.

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Flash butt weld

Flash butt welding of pipe

April 15, 2002

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This article describes the flash-butt welding process as used to weld pipes externally and internally. The authors describe the process, how it's used, how its technology is employed, advances in the process, materials that can be welded, and equipment used.

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Batch hot-dip and inline galvanizing

April 11, 2002

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The two most common methods of applying zinc metal to steel handrail tubing are batch hot-dip galvanizing and inline, continuous galvanizing. The batch hot-dip method provides a coating thickness approximately 3 times that of the inline method, and a coating that lasts approximately 3 times as long. However, for indoor applications that do not require more than 500 PSI of bond strength, inline galvanized tube can be cost-effective.

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End of the paper trail: Arizona tube fabricator takes electronic path to productivity

March 14, 2002

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Tube Specialties of Tempe, Ariz., wanted to get off the paper trail to streamline its production, accounting and inventory processes. This article looks at the reasons for the change, obstacles to the change and its benefits.

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Setting standards for beverage production

February 28, 2002

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The pitfalls of building a beverage processing facility can be many. Poor welds involving tubing, fittings, and valves provide opportunities for bacteria to grow, creating health concerns and the potential for ruined product. Orbital welding -- which provides higher-quality, consistent welds compared to manual welding -- helps to reduce these concerns.

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Comparing flash and butt welding

February 28, 2002

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This discussion explains the basic differences between the flash and butt welding processes and discusses their use of AC or DC secondary currents with single-phase or three-phase primary input power.

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tangent settings for a standard mandrel

Using mandrels for bending tube

January 31, 2002

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This article discusses bending with mandrels. It illustrates six major types of mandrel and the most appropriate use for each. It also describes common bending problems and the most likely solutions.

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Tube and pipe cutting techniques; advantages and limitations

January 24, 2002

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Many factors are involved in choosing a particular method or technology for cutting tube or pipe.

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Bending tube with an all-electric machine

December 13, 2001

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This article discusses the ins and outs of all-electric tube bending machines, discussing the challenges, performance characteristics, and typical options of all-electric benders.

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Cutting tube in a recut operation: How to decide on a method and equipment

October 25, 2001

This piece, which originally appeared in TPJ-The Tube & Pipe Journal in 1997, explains how to decide whether to cut tubing on the production line or cut it later in a recut operation. Discusses various types of recutting equipment and focuses on the dual-blade shear cutting method.

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Deburring

Reviewing forming, expansion, and bending applications for welded tube

September 18, 2001

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Tube used in production processes that form a part by expanding or bending the tube

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Quenching and tempering of welded carbon steel tubulars

July 29, 2001

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The quenching and tempering of tubes include a number of variables that can have a profound effect on the process and the finished product.

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Magnetic pulse welding figure 1

Magnetic pulse welding for tubular applications: Discovering new technology for welding conductive materials

July 26, 2001

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A review of how magnetic pulse welding works, in what applications it can be used, and what considerations users must take to perform it properly.

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The growing use of orbital tube welding

July 12, 2001

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Although orbital tube welding has been used in aerospace, semiconductor, and other high-purity applications for a long time, general industrial markets just now are beginning to view it as a viable and economical option for joining stainless steel tubing.

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