Patent Number: 6,308,397

Title: Method for manufacturing friction plate

Abstract: The present invention provides a method for manufacturing friction plates obtained by adhering friction members to substantially annular core plates, comprising the steps of simultaneously stamping a plurality of coaxial core plates having different diameters with a joint portion remaining therebetween, preliminarily adhering friction member segments to the stamped plural core plates, and stamping the joint portion during or after a main adhering step following the preliminarily adhering step.

Inventors: Nishimura; Shigeharu (Shizuoka-ken, JP), Horiuchi; Nobuhiro (Fukuroi, JP)

Assignee: NSK-Warner K.K.

International Classification: B21D 28/10 (20060101); B21D 53/88 (20060101); B21D 53/00 (20060101); B21D 035/00 ()

Expiration Date: 10/30/2018