| 摘要 |
The invention concerns a lapping disk for oscillation grinding-in, comprising a metal body, characterised in that on the body front plane (1), the operating plane (2) is included which has a shape of a varied-width ring; and the external circumference thereof is the same as that of body circumference (1), whereas the internal circumference symmetry axis is eccentric to the body (1) axis, whereas in the operating plane (2), at least three passages (3) and at least three blind apertures (4) are made interconnected by means of ducts (5), whereas the passages (3) are located near the internal circumference of the operating plane (2), and the blind apertures (4) are located near the external circumference of the working plane (2), and they are not in line in relation to the passages (3).IMAGE>
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