B - Operations – Transporting – 23 – P
Patent
B - Operations, Transporting
23
P
B23P 15/00 (2006.01) B23F 15/08 (2006.01) F01C 1/08 (2006.01)
Patent
CA 2308998
A method for making rotors for screw-type machines with a plunge-cut turning method in which an approximately rectangular groove is formed approximately at a center of a work piece with trilateral machining, a groove is cut radially deeper by trilateral machining until a predetermined groove depth has been reached, the profile flanks are shaped by bilateral machining, and the groove depth is increased with a recessing tool.
Joh. Heinr. Bornemann Gmbh
Kirby Eades Gale Baker
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