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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High-performance, high-speed happiness - TheFabricator.com

High-performance, high-speed happiness

February 1, 2013

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After realizing he was spending too much time traveling, risk management consultant Hank Padilla decided to take a dramatic career detour. He did some vocational coursework and opened a fabrication shop, serving the local area (Littleton, Colo.) with precision tube bending and GTAW for roll cages and exhaust systems.

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Tube, pipe producer executes 3-phase improvement plan - TheFabricator.com

Tube, pipe producer executes 3-phase improvement plan

January 18, 2013

In the aftermath of the financial crisis of 2008, Trinity Products devised a trinity of improvements: worker knowledge and skills, equipment upgrades, and management training. Assisted by Lincoln Electric in selecting equipment and developing its training programs, the company doubled its throughput from 2,000 to 4,000 tons per month.

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Fabricator rides new wave of interest in hydroforming - TheFabricator.com

Fabricator rides new wave of interest in hydroforming

October 8, 2012

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Founded in 2003, American Hydoformers Inc. arrived on the scene a little too late to catch the first big wave of interest in hydroforming. A few automobile manufacturers had been oversold on the technology and were cautious to continue to convert parts to hydroforming, but AHI didn’t stumble and fall. Wise investments in equipment gave the company a unique and thriving position in the industry.

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Tube producer beats the heat with portable cooling units - TheFabricator.com

Tube producer beats the heat with portable cooling units

September 3, 2012

Many industrial processes generate quite a bit of heat, so keeping workers cool is a top priority. Wheatland Tube Co., Wheatland, Pa., added portable cooling units to lower the temperatures in its galvanizing and cutting areas. This initiative increased the time workers spend in these areas and eliminated heat-related incidents.

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Quality control for tube, pipe producers - TheFabricator.com

Quality control for tube, pipe producers

July 16, 2012

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Years ago tube and pipe producers relied mainly on eddy current testing and ultrasonic testing for detecting short- and long-duration weld faults, respectively. These testing systems are still useful and in many cases required, but the spread of electronic technology has provided many more types of testing equipment for use on tube and pipe mills.

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Taming two weld beads - TheFabricator.com

Taming two weld beads

June 8, 2012

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The essential tube and pipe production processes on a weld mill haven't changed much since the 1920s. Some new processes are available, such as laser welding, and the line speeds are faster, but much else hasn't changed. One factor that has undergone some change is how the weld bead, also known as scarf and a stringer, is handled. The conventional method was to wind it up as it came off the tube, but OD scarf choppers reduced operator exposure to this strand of red-hot, razor-sharp metal. Similcut has taken safety a step further by introducing a self-feeding OD chopper and wheelless, cantilevered ID chopper.

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When, where, why to use nondestructive testing methods - TheFabricator.com

When, where, why to use nondestructive testing methods

March 9, 2012

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The type of inspection needed for piping systems depends on which code or standard is invoked for the project. Understanding the order inspection requirements can make or break a contractor. This article should shed some light on the various pitfalls that can be avoided by understanding the relevant testing requirements.

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Evaluating drawing lubricants - TheFabricator.com

Evaluating drawing lubricants

February 1, 2012

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Chlorinated lubricants, which have been phased out in Canada and Europe, are still used in many metal-forming applications in the U.S. This class of lubricants is under scrutiny in the U.S., so it makes sense to test alternative lubricants now. Evaluating a lubricant for drawing tube requires much more than simply measuring the draw load during a pull. A comprehensive test evaluates ease of cleaning and finished tube quality also.

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Replacing the tapered roller bearings in your mill tooling frequently? - TheFabricator.com

Replacing the tapered roller bearings in your mill tooling frequently?

December 21, 2011

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Overlooking a small component on a tube or pipe mill—even something as seemingly insignificant as the roller bearings inside the inboard and outboard stands—can lead to excessive downtime. Learning the proper way to install and maintain these bearings can extend their service life and improve the mill’s uptime.

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weld-seam normalizing

Heat-treating line pipe weld seams

October 10, 2011

As the use of thick-walled pipe for API applications grows, so does the need to verify that it has been correctly normalized. Use of 2-D simulation verifies that the temperatures and heating pattern needed to obtain the desired strength and toughness have been achieved.

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HPTR's past, present, and future—Part II - TheFabricator.com

HPTR's past, present, and future—Part II

July 11, 2011

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Editor's Note: This article is the second of a two-part series. Part I examined the development, design, and functions of the high-precision tube roller (HPTR). Part II discusses the HPTR’s current role and modern applications. At its creation, the high-precision tube rolling (HPTR) mill was...

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HPTR titanium tube

HPTR’s past, present, and future — Part I

June 18, 2011

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Initially developed in the 1950s for manufacturing tubing with ultrathin walls for nuclear fuel cladding, the high-precision tube roller (HPTR) continues to provide a fast, economical way to achieve extreme reductions in diameter and wall thickness.

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Dust collection system

Designing a dust collection system for weld seam remetallizing

February 25, 2011

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OHSA seems to be taking an increased interest in worker safety and, according to OMB Watch, has been citing an increasing number of workplace violations. Tube and pipe producers who remetallize their product pay particular attention to OSHA Directive Number CPL 03-00-008, which deals with a hazard specific to remetallizing operations: explosive dust.

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Changing the point of attack - TheFabricator.com

Changing the point of attack

December 8, 2010

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For inline cutoff, tube and pipe producers typically use a mechanically driven, single-blade device. This type of cutoff unit is good for most applications, but in many specialized cases, it might not produce good results. Square or rectangular tubes, heavy walls, and lockseam tubing present cutoff challenges that call for a hydraulic unit or a swing blade.

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Cold drawing principles - TheFabricator

Cold drawing principles

June 8, 2010

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Understanding that drawing a tube requires more than just pointing and drawing is a good start to a successful draw. Procuring the raw material, pointing, drawing, straightening, and finishing are the five steps fabricators need to keep in mind.

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