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Home / Single-Pass Taper Threading of Pipe

Single-Pass Taper Threading of Pipe

A LOC650 horizontal lathe from Okuma uses Thread Chaser inserts from Seco Tools to accurately thread oil coupling pipe in a cycle time of less than one minute.

The Okuma LOC650 4-axis turning center used in the process applies tandem Seco multi-tooth, chaser-style threading inserts that are pushed through to direct cutting forces back into the machine. The stability and precision of the lathe, combined with the 4-axis design and this unique thread-cutting process, provides great results up to 7 in diameter in both accuracy and productivity. 
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Using an LOC650 4-axis horizontal CNC lathe and Thread Chaser inserts from Seco Tools (Troy, MI), Okuma America Corporation (Charlotte, NC) has developed a process for single-pass threading of oil coupling pipe with a cycle time of less than one minute.

Employing an automated pipe loading system from Partners in THINC member Automation Engineering Company, LLC (AEC; Greenville, SC), and a high-pressure coolant system, the process speeds production and improves productivity. The pipe-threading process relies on inserts that are designed for reliability and wear resistance in high-speed cutting conditions.

The 4-axis turning center used in the process applies tandem Seco multi-tooth, chaser-style threading inserts that are pushed through to direct cutting forces back into the machine. The stability and precision of the LOC650 lathe, combined with the 4-axis design and this unique thread-cutting process, provides great results up to 7 in diameter in both accuracy and productivity. Benefits of Single-Pass Taper Threading includes:

  • Increased productivity (as much as 500 percent)
  • Improved tool life
  • Quick changeover with cartridge-style tooling

Okuma’s LOC650 Lathe:

  • Originally built for the oil industry (LOC = Lathe Oil Country)
  • Rigid construction to handle large parts
  • Perfectly matched spindles, capable of taking heavy cuts with precision
  • Ability to control resonance and harmonics

Single-pass threading gives pipe manufacturers a valuable tool for meeting the growing demands of the oil industry. For more information, please call or visit the Houston Okuma Tech Center.

Okuma America Corporation, 11900 Westhall Drive, Charlotte, NC 28278, 704-588-7000, www.okuma.com.

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