Composite brake drum

Details Composite brake drum Composite brake drum

F - Mech Eng,Light,Heat,Weapons

16

D

26/187, 188/198

F16D 65/10 (2006.01) B22D 19/00 (2006.01)

Patent

CA 1096320

COMPOSITE BRAKE DRUM ABSTRACT OF THE DISCLOSURE Composite brake drums are made by die casting aluminum or other light weight metal around (A) the perifery of a substantially biplanar stamped steel drum back having a plurality of alternating holes and voids in its outermost edge in a plane and (B) a cast iron braking ring with smooth inner braking surface and rough outer surface whereby the lightweight die cast fills said holes and voids and inter- locks with said rough outer surface to provide a brake drum of unitary construction that has improved braking performance with reduced weight and cost, especially compared to similar brake drums having a drum back of cast lightweight metal.

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