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Seco Tools adapted its line of reliable, accurate thread chaser holders to support Steadyline vibration damping bars and Capto tooling. With special carbide-pin locating systems, patented pocket seat surface patterns and high-pressure coolant delivery, these holders reportedly guarantee consistent insert positioning, superior rigidity and effective chip evacuation.
Adapted for tooling with Capto C6, Capto C8 or Steadyline GL50 connections, these new holders accommodate a wide selection of multi-tooth chasers or single-tooth inserts that efficiently perform external and internal threading operations, providing increased options and added flexibility for push or pull configurations. Previously available in a square shank design, Seco’s thread chaser holders produce API and common licensed thread profiles across the full range of OCTG materials.
The combination of a chipbreaker geometry and direct coolant delivered through the insert and chipbreaker creates optimal chip formation with increased tool life. Maximum pressures reach 70 bar on the new Steadyline and Capto versions of the thread chaser holders and 200 bar on square shank holders.
Thread chaser holders rely on top and axial clamping forces to maintain a tight insert grip during the threading process. These clamping forces result in long, predictable insert life and lower tooling costs. Together these holders and inserts can reduce the number of passes it takes to continuously produce high-precision full thread profiles.
Related Glossary Terms
- chipbreaker
chipbreaker
Groove or other tool geometry that breaks chips into small fragments as they come off the workpiece. Designed to prevent chips from becoming so long that they are difficult to control, catch in turning parts and cause safety problems.
- coolant
coolant
Fluid that reduces temperature buildup at the tool/workpiece interface during machining. Normally takes the form of a liquid such as soluble or chemical mixtures (semisynthetic, synthetic) but can be pressurized air or other gas. Because of water’s ability to absorb great quantities of heat, it is widely used as a coolant and vehicle for various cutting compounds, with the water-to-compound ratio varying with the machining task. See cutting fluid; semisynthetic cutting fluid; soluble-oil cutting fluid; synthetic cutting fluid.
- shank
shank
Main body of a tool; the portion of a drill or similar end-held tool that fits into a collet, chuck or similar mounting device.
- thread chaser
thread chaser
Die-type external threading tool. Makes final threading pass.
- threading
threading
Process of both external (e.g., thread milling) and internal (e.g., tapping, thread milling) cutting, turning and rolling of threads into particular material. Standardized specifications are available to determine the desired results of the threading process. Numerous thread-series designations are written for specific applications. Threading often is performed on a lathe. Specifications such as thread height are critical in determining the strength of the threads. The material used is taken into consideration in determining the expected results of any particular application for that threaded piece. In external threading, a calculated depth is required as well as a particular angle to the cut. To perform internal threading, the exact diameter to bore the hole is critical before threading. The threads are distinguished from one another by the amount of tolerance and/or allowance that is specified. See turning.
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