Machining method and apparatus for thread formation on workpiece
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United States of America Patent
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Jul 14, 2009
Grant Date -
Aug 14, 2008
app pub date -
Apr 10, 2007
filing date -
Oct 28, 2005
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Machining techniques and machining apparatus are provided for treating workpieces in an efficient and reliable manner. The machining techniques and machining apparatus employ multiple thread whirling heads associated with a single machining assembly, such that each of the thread whirling heads is able to act on a workpiece during a single, uninterrupted machining process. Screw threads may be formed that include first and second thread profiles and an intermediate transition region. The machining apparatus generally includes a processor that is programmed to control operation of the multiple thread whirling heads in a sequential manner.
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