HIGH-FREQUENCY HEAT TREATMENT COIL, OUTER-SIDE JOINT MEMBER FOR CONSTANT-VELOCITY UNIVERSAL JOINT, AND CONSTANT-VELOCITY UNIVERSAL JOINT

摘要

Provided are a high-frequency heat treatment coil that can be assembled with high dimension accuracy and can perform high-quality heat treatment, a method of producing such a high-frequency heat treatment coil, a constant velocity universal joint subjected to high-quality heat treatment, and a drive shaft and a propeller shaft using such a constant velocity universal joint. The method is provided to produce a high-frequency heat treatment coil including a heating section (71a, 71b, 71c) for heating a heat treatment portion of an outer joint member (51) for a constant velocity universal joint. The heating section (71a, 71b, 71c) is formed by machining in an integrated manner, and the heating section (71a, 71b, 71c) is joined to another section to complete the high-frequency heat treatment coil.

主权项

1. A method of producing a high-frequency heat treatment coil including a heating section for heating a heat treatment portion of an outer joint member for a constant velocity universal joint, the method comprising forming the heating section by machining in an integrated manner and joining the heating section to another section, to thereby complete the high-frequency heat treatment coil.