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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Modern flying shear tube cutoff systems - Part II

August 8, 2006

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This article, Part II of a two-part series, discusses the different types of die set accelerators found in flying shear tube cutoff systems. It presents an overview of earlier accelerator technologies still in use today—cam link, assisted lift target, and air/oil units. It also discusses three common closed-loop die set accelerators that represent newer technology—hydraulic servo valve, servomotor belt, and servomotor rack and pinion.

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Opening the gate to efficiency

August 8, 2006

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Since 1945 family-owned and -operated Tarter Gate has grown in staff and sales as it has changed the design of its products. To keep up with sales, continue growing the company, and absorb as many rising costs as possible — particularly in steel and fuel prices — the company uses custom machines and new technologies to its advantage.

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Modern flying shear tube cutoff systems

August 8, 2006

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Modern flying shear tube cutoff systems comprise state-of-the-art mainframes, tools, and controllers. This article, Part I of a three-part series, discusses the different types of mainframes, their capabilities, and construction. It describes and includes images of the construction process from start to finish.

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How do you measure success?

July 11, 2006

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Contrary to common opinion, a high production rate is not the key to success in making tube. Attempting to low-ball the price — while cutting corners in maintenance and upgrades -- is a poor strategy in this industry. Columnist Bud Graham provides four production scenarios that compare various rates of capacity utilization and line speed and how these affect profitability.

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Introducing cold pilger mill technology

July 11, 2006

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The cold mill pilgering process uses ring dies and a tapered mandrel to reduce tube cross sections by up to 90 percent. Because the process relies on large number of small forming steps, the result is tube or pipe that has nearly homogenous material characteristics. It is suitable for every metal.

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The regrind process for tube mill tooling - Part II

June 13, 2006

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Although most tube and pipe producers don't get too involved in the regrind process, it is crucial—reconditioning roll tooling can extend its useful life by 15 or 20 times. The regrind process reduces the producer's overall out-of-pocket tooling expenses, while helping to ensure the tooling continues to produce a consistent-quality product at the required speeds. A better understanding of the process, especially familiarity with the types of flaws that reconditioning can and cannot resolve, can go a long way toward a better working relationship between a tube and pipe producer and its regrind contractor.

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Envelope, please!

June 13, 2006

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Bud Graham revisits his January/February column on problems that plague tube mills (or nearly any manufacturing company, for that matter) and shares some reader feedback. Also, he provides the runners-up and winner of a caption contest for a photo that also appeared in the January/February issue.

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The regrind process for tube mill tooling

June 13, 2006

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Although most tube and pipe producers don't get too involved in the regrind process, it is crucial—reconditioning roll tooling can extend its useful life by 15 or 20 times. The regrind process reduces the producer's overall out-of-pocket tooling expenses, while helping to ensure the tooling continues to produce a consistent-quality product at the required speeds. A better understanding of the process, especially familiarity with the types of flaws that reconditioning can and cannot resolve, can go a long way toward a better working relationship between a tube and pipe producer and its regrind contractor.

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Troubleshooting Guide for Cleaners

May 15, 2006

Rust, wear, and dirt cost tube fabricators and producers millions of dollars annually, and they can be the bane of tube processes. Analyzing the criteria for selecting the lubricant, cleaner, and rust preventative can help provide maximum protection.

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Modern flying shear tube cutoff systems - Part I

April 11, 2006

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Modern flying shear tube cutoff systems comprise state-of-the-art mainframes, tools, and controllers. This article, Part I of a two-part series, discusses the different types of mainframes, their capabilities, and construction. It describes and includes images of the construction process from start to finish.

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The regrind process for tube mill tooling - Part I

April 11, 2006

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Although most tube and pipe producers don't get too involved in the regrind process, it is crucial—reconditioning roll tooling can extend its useful life by 15 or 20 times. The regrind process reduces the producer's overall out-of-pocket tooling expenses, while helping to ensure the tooling continues to produce a consistent-quality product at the required speeds. A better understanding of the process, especially familiarity with the types of flaws that reconditioning can and cannot resolve, can go a long way toward a better working relationship between a tube and pipe producer and its regrind contractor.

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Eliminating problems that cause flaws

April 11, 2006

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Problematic material? Yes, bad coil is out there. It could be mislabeled; the yield strength could vary from one part of the coil to another; it might have damaged edges; and so on. In the second part of this two-part series, columnist Bud Graham discusses steel coil, how its characteristics can vary, and how these variations can result in substandard tube.

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Happy New Year!

January 10, 2006

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How can we make 2006 better than 2005? One way is to adopt a few work-related new year's resolutions. The author lists five factors that hold the industry back--factors that everyone should resolve to overcome for a successful year.

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Cutoff die setup for dimple-free rounds

December 13, 2005

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With the right equipment and proper setup, tube mills can produce dimple-free round tubing efficiently. A multistep process using a two shear blade makes a dimple-free cut, and an inline brush end finisher can be used to remove the ever-present clearance burrs, if needed

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Relief ahead in 2006?

December 13, 2005

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An overview of the pressures faced by the tube and pipe producing industry in 2005 and the author's views on how 2006 will be similar, but with a greater emphasis on energy costs, conservation, and availability. Ends with a few reminders about tube mill maintenance and efficiency.

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