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US 6,945,309 B2Granted
Method and apparatus for forming a part with dampener
AssigneeHayes Lemmerz International, Inc.
InventorsJohn Frait, Michael Dunn, Marcello Tedesco, Daniel Sandberg
Life of this patent
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Abstract
A method for producing a damped part where a sand core is formed with at least one dampening structure with the sand core. The sand core with the at least one dampening structure therein is located in a mold. A part is cast from the mold and the sand core. The sand core is removed from the cast part leaving the at least one dampening structure in contact with the part.
Claims25
A method for making a damped part, comprising:
- forming a sand core with at least one dampening structure within said sand core wherein said dampening structure has a plurality of air passages;
- locating said sand core with said at least one dampening structure therein in a mold;
- casting a part from said mold and said sand core, said part having a plurality of individual solid brake plate supports;
- and
- removing said sand core from said part while leaving said at least one dampening structure located between said solid brake plate supports and in contact with said part.
2 more elements
A method for making a damped disc brake rotor, comprising:
- forming a sand core with at least one dampening structure within said sand core, wherein said dampening structure has a plurality of air passages;
- locating said sand core with said at least one dampening structure in a rotor mold;
- casting a rotor from said rotor mold and said sand core, said rotor having a plurality of individual solid brake plate supports;
- removing said sand core from said rotor;
- and
- leaving said at least one dampening structure between said solid brake plate supports.
3 more elements
Dependencies are inferred from the claim text.