Cutting by use of rotating axially moving tool – Processes – Bit detachable
Patent
1999-01-19
2000-05-16
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Processes
Bit detachable
408217, 408221, 470185, B23G 500
Patent
active
060627778
ABSTRACT:
A method is provided for machining threads on cylindrical parts, particularly oil country tubular goods, by mounting four thread-cutting chasers in a die head of a thread cutting machine. The thread chasers are each of unique profile, which enables the cutting of threads to close tolerance and decreases metal burrs on the first and last threads cut on the part by reducing the total tool cutting forces imposed on the part and said threading machine.
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Palyo, III George John
Sargent William Boyd
Howell Daniel W.
Riesmeyer, III William F.
USX Corporation
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