Patent ID: 8960382
Filing Date: 2015-02-24
Classification: F16F

Abstract:
1. A brake rotor comprising: a component comprising an annular portion, having a circumference, comprising a first material, a second material, and a filler material, the first material being different than the second material, and the filler material being different than the second material, the first material defining at least one cavity in the component, the cavity having an open end around the circumference of the annular portion and the second material traversing the open end and closing the cavity to define at least one closed chamber, the at least one closed chamber defined at least in part by an inner surface, the filler material being completely enclosed within the at least one closed chamber constructed and arranged so that the filler material moves in the at least one closed chamber with vibration of the component, wherein relative movement between the inner surface and the filler material helps to friction damp vibrations in the component when the component is vibrated, the second material comprising a solder, a weld material or a fusible metal wherein the second material is disposed adjacent to the open end and fused around the circumference of the annular portion to confine the cavity.