[특허]Method of forming casting with frictional damping insert

[미국특허] Method of forming casting with frictional damping insert 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B22D-019/00 B22D-019/02 B22D-019/16
출원번호	US-0969259 (2008-01-04)
등록번호	US-8091609 (2012-01-10)
발명자 / 주소	Aase, Jan H. Verbrugge, Mark W. Schroth, James G. Sung, Shung H.
출원인 / 주소	GM Global Technology Operations LLC
대리인 / 주소	Reising Ethington P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 71

초록

A method of making a frictionally damped part including providing a frictional damping insert including downwardly extending support legs stamped out of a body portion of the insert.

대표청구항 ▼

1. A method of making a product comprising: providing a frictional damping insert including a body portion having a planar portion and a plurality of support legs stamped out of the body portion, the support legs bent and extending downward from the planar portion, the body portion having a plurality of through holes formed therein from the support legs being stamped out of the body portion, and placing the insert in a lower portion of a casting mold so that the downwardly extending legs engage a floor of the lower portion of the casting mold and support the insert in the mold, closing an upper portion of the mold and casting molten metal into the mold to surround at least a portion of the outer surfaces of the frictional damping insert. 2. A method as set forth in claim 1 further comprising providing a second frictional damping insert comprising a body portion and a plurality of downwardly extending support legs stamped out of the body portion and placing the second frictional damping insert on top of the first frictional damping insert so that the downwardly extending support legs of the second insert support the body portion of the second insert in a spaced apart relationship with the body portion of the first insert. 3. A method as set forth in claim 2 further comprising placing a core over the first insert, and placing a second frictional damping insert over the core prior to closing the top portion of the mold. 4. A method as set forth in claim 3 wherein the core includes a plurality of through holes formed therein so that the product comprises a vented brake rotor comprising a plurality of vanes extending between the first insert and second insert. 5. A method as set forth in claim 1 wherein the frictional damping insert includes a coating on a portion thereof to prevent molten metal from wetting the coated portion and bonding thereto. 6. A method as set forth in claim 1 wherein the insert comprises stainless steel. 7. A method as set forth in claim 6 wherein the molten metal is cast iron. 8. A method as set forth in claim 1 wherein the insert includes an annular body portion, and wherein the downwardly extending support legs are stamped from the annular body portion. 9. A method as set forth in claim 8 further comprising support tabs extending radially inward or outward from the annular body portion. 10. A method as set forth in claim 9 wherein the support tabs do not include a coating thereon. 11. A method as set forth in claim 9 wherein the support tabs include a coating thereon to allow the molten metal to wet the tabs and bond thereto. 12. A method as set forth in claim 8 further comprising a coating over portions of the annular body, the coating preventing molten metal from wetting the coated portion of the annular body. 13. A method as set forth in claim 12 wherein the downwardly extending support legs include a different coating thereon to allow molten metal to wet the legs and bond thereto. 14. A method as set forth in claim 1 wherein the downwardly extending support legs do not include a coating thereon. 15. A method as set forth in claim 1 further comprising cooling the molten metal to provide a metal casting, the metal casting surrounding the frictional damping insert. 16. A method as set forth in claim 15 wherein the metal casting comprises a brake rotor cheek and a hub portion. 17. A method as set forth in claim 15 wherein the insert comprises stainless steel and the metal casting comprises cast iron. 18. A method as set forth in claim 15 wherein at least a portion of the insert is not bonded to the metal casting.

이 특허에 인용된 특허 (71) 인용/피인용 타임라인 분석

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[미국특허] Method of forming casting with frictional damping insert 원문보기

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[미국특허] Method of forming casting with frictional damping insert 원문보기

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