Backing plate with friction material retention members and method and apparatus for manufacturing same

摘要

A backing plate for a friction assembly includes a body having a first surface and a second surface. On or more retention members are provided on the first surface for engaging a friction material mounted thereon. Each retention member has a primary depressed portion and a secondary depressed portion and one or more protruding members extending upwardly from the first surface. The protruding members are formed by extrusion or cutting the plate material from the side wall of the primary depressed portion.