| 摘要 |
PROBLEM TO BE SOLVED: To provide a driving wheel hub processing method for improving concentricity between an outer peripheral surface of a shaft part and a through-inside hole and perpendicularity dimensional accuracy between the outer peripheral surface of the shaft part and a plane seat of a flange part, by eliminating the deterioration in dimensional accuracy by installation in finishing processing and accumulation of an instrumental error. SOLUTION: In one numerically controlled lathe, a raw material of a driving wheel hub 10 in the middle of processing, is held so as to be rotatably processible by separating from a main spindle end surface of the lathe. Intermediate finishing processing of the outer peripheral surface 11b of the shaft part 11 of the driving wheel hub 10, finishing processing of the plane seat 12a of the flange part 12, and finishing processing of the outer peripheral surface 11b of the shaft part 11, are performed by properly changing a processing tool in response to the respective processing. COPYRIGHT: (C)2005,JPO&NCIPI
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