Brake drum and method for producing the same

Details Brake drum and method for producing the same Brake drum and method for producing the same

2005-04-19

2005-04-19

Graham, Matthew C. (Department: 3683)

Brakes

Elements

Brake wheels

C188S25000B, C164S098000

Reexamination Certificate

active

06880681

ABSTRACT:
A brake drum includes a ring-shaped drum body (13), and a friction member (16) secured to the inner circumferential surface (18) of the drum body. Because the drum body is formed of a lightweight Al alloy and the friction member is formed of an Al-base composite material, the brake drum can be reduced in weight as a whole. Further, because the friction member, having projecting portions (17a) formed on its outer periphery (17), is cast-enveloped by molten metal of the Al alloy, the friction member and the drum body can be firmly fastened together. Thus, even when a great braking force is applied to the drum brake, the friction member can be prevented from being undesirably detached from the drum body.

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