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US 8,770,263 B2Granted
Method of casting damped part with insert
AssigneeGM Global Technology Operations LLC
InventorsMichael D. Hanna, Mohan Sundar, Andrew Schertzer
Life of this patent
Estimating the term…
Abstract
A method including positioning an insert in a vertical mold including a first mold portion and a second mold portion; and casting a material including a metal around at least a portion of the insert.
Claims20
A method comprising:
- treating a first portion of the insert so that molten material comprising a metal does not wet the first portion of the insert and bond thereto upon solidification, and a second portion of the insert being constructed and arranged so that metal cast over the second portion bonds to the second portion upon cooling;
- and
- pre-heating an insert to a temperature ranging from 50-80° C. to remove moisture on the insert and thereafter loading the insert into a first mold portion of a vertical mold for casting metal, and casting metal over the insert and solidifying the metal so that the metal bonds to the second portion and not to the first portion wherein the insert comprises a bent tab so that the insert hangs on the first mold portion of the vertical mold.
Dependencies are inferred from the claim text.