Claims
- 1. A method of abrading a hard workpiece having a Rockwell “C” hardness of at least 25 comprising(1) providing a coated abrasive article which comprises a backing and an abrasive layer, the abrasive layer comprises a bond system and abrasive agglomerates, and the agglomerates comprising (a) an inorganic metal oxide binder substantially free of free metal and (b) abrasive grains substantially comprising superabrasive grains, the inorganic binder having a coefficient of thermal expansion which is the same or substantially the same as a coefficient of thermal expansion of the abrasive grains; (2) contacting the coated abrasive article with the workpiece; and (3) moving the coated abrasive article and the workpiece relative to each other.
- 2. The method of claim 1 wherein the hard workpiece is precision abraded by truing the coated abrasive article prior to contacting the abrasive article with the workpiece.
Parent Case Info
This is a division of application Ser. No. 08/908,122 filed Aug. 11, 1997 now U.S. Pat. No. 5,975,988, which was a continuation of Ser. No. 08/316,259, filed Sep. 30, 1994, now abandoned.
US Referenced Citations (29)
Foreign Referenced Citations (8)
Number |
Date |
Country |
26 08 273 |
Dec 1977 |
DE |
29 41 298 A1 |
Apr 1981 |
DE |
0 052 758 |
Jun 1982 |
EP |
0 395 088 |
Oct 1990 |
EP |
0 648 576 |
Apr 1995 |
EP |
6-190737 |
Jul 1994 |
JP |
861012 |
Sep 1981 |
SU |
9312911 |
Jul 1993 |
WO |
Non-Patent Literature Citations (1)
Entry |
Jae M. Lee et al., “Camshaft Grinding Using Coated Abrasive Belts,” Transactions of the North American Manufacturing Research Institution of SME, vol. XXI, 1993. |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/316259 |
Sep 1994 |
US |
Child |
08/908122 |
|
US |