Tube and Pipe Fabrication

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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Cutting Costs

June 27, 2002

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This article describes different ways to contain tube and pipe welding fabrication costs, focusing on the option of using particular weld prep equipment. It outlines specific applications in thin-wall tube and pipe fabrication and installation and pipe with a heavier wall thickness.

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Achieving success with rotary draw bending

June 13, 2002

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This article discusses several aspects of rotary draw tube bending, including machine specifications; tooling and lubrication; tube material; and machine controls. It discusses advantages and disadvantages of single-level and multilevel machines; selecting lubricants and coatings to reduce tool wear; consistency of tube dimensions and the material's characteristics; and how machine controls are programmed or manually set by the operator.

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Using punching and forming plates

May 16, 2002

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This article discusses using punching and forming plates within a stamping press as an alternative to tube bending and end forming machinery.

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Bending square and rectangular tubing

May 16, 2002

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This article discusses some of the similarities and differences between bending round tube versus square and rectangular tube. Explores the characteristics of square and rectangular sections and the bending challenges associated with these characteristics.

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primer on titanium tube

A primer on titanium tube and pipe

May 16, 2002

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This article discusses titanium—how it is processed; the types and grades of pure titanium and alloys that are available; and applications for titanium tube and pipe. Discusses manufacturing and testing titanium tube and pipe to ASTM standards for specific applications.

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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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