Torque Transmitting Member in Automotive Transmission Method for Forming Spline Teeth and Apparatus for Forming the Same

摘要

Of cylindrical shape at the center of a metallic disk plate (3a) the boss (5) is in the spline teeth forming method for forming the spline teeth 12 to the boss an outer circumferential surface of the processing member is formed integrally with, the teeth for tensile forming of spline teeth (12 ) is formed of a cylindrical die 14 and a die 14 against a boss guide mandrel (16) disposed at the center, the boss (5) is arranged a work piece to be coupled to the mandrel 16 and the disc plate ( 3a) by pressing with a punch, the tensile molding die 14 and the mandrel 16 to the gaps into the boss 5 boss 5 spline teeth on an outer circumferential surface (5a) between.