METHOD AND DEVICE FOR INDUCTION HARDENING PIN SHAFT OF CRANK SHAFT

摘要

PPROBLEM TO BE SOLVED: To provide a method and a device for induction hardening a pin shaft of a crank shaft. PSOLUTION: This method comprises using a divided circle type heating coil 10, and induction-hardening the crank shaft 1 while swinging it around the pin shaft 3 as a center. PCOPYRIGHT: (C)2004,JPO