| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an offset type grinding wheel with a long life, of which the peripheral edge portion is abraded uniformly. <P>SOLUTION: Two sheets of coarse clothes, which are processed to be offset type and contain a first edge part along the peripheral edge of a grinding wheel and a second edge part, being relatively away from the peripheral edge of the grinding wheel when compared with the first edge part, at four points alternately and respectively, with constant intervals in circumferential direction, are embedded in the offset type grinding wheel in such manner as the first edge part and the second edge part correspond to the thickness direction of the grinding wheel mutually. Otherwise three sheets of coarse clothes are embedded in the offset type grinding wheel in such manner as mutual first edge parts come to be in such positional relationship as deviated by 30° with the center of the grinding wheel as a rotational center. <P>COPYRIGHT: (C)2012,JPO&INPIT |
