Method of manufacturing friction plate and apparatus thereof

Details Method of manufacturing friction plate and apparatus thereof Method of manufacturing friction plate and apparatus thereof

2006-04-18

2006-04-18

Edmondson, Lynne R. (Department: 1725)

Metal working

Method of mechanical manufacture

Gear making

C029S893340, C228S164000, C072S335000

Reexamination Certificate

active

07028403

ABSTRACT:
A method of manufacturing a friction plate including a plurality of frictional material segments which are punched into a predetermined shape, and a core plate onto which the plurality of frictional material segments are annularly bonded, comprising step of punching out the frictional material segment in such manner that an edge portion thereof along the predetermined shape is given a punching load earlier than the other portions thereof in the process of punching.

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