WORKPIECE PROCESSING DEVICE, GRINDING STONE, AND WORKPIECE PROCESSING METHOD

WIPO Patent Application WO/2022/270175

A1

A rotatable disc-like grinding stone 5 comprises a convex grinding portion 5b in the outer peripheral portion thereof. The cross-sectional shape of the convex grinding portion 5b passing through a rotational axis 6 of the grinding stone 5 is convex toward the outer peripheral side. The grinding stone 5 is shaped with an arc-like portion 5e at least in each of both end portions thereof in the thickness direction. In order to form a disc-like workpiece 2 into a desired cross sectional shape, the workpiece 2 and the grinding stone 5 are arranged parallel to each other, the grinding stone 5 is rotated, and the workpiece 2 is rotated around a rotational axis 3 parallel to the rotational axis 6 of the grinding stone 5, while the grinding stone 5 is moved relative to the workpiece 2 according to a moving condition calculated on the basis of the curvature radius of the arc-like portion 5e of the grinding stone 5, such that a contact portion between the convex grinding portion 5b and the workpiece 2 moves along the desired cross-sectional shape of the workpiece 2. The curvature radius of the arc-like portion 5e of the grinding stone 5 is at least 10 times the thickness of the workpiece 2.

KATAYAMA ICHIRO (JP)
AOKI HIROTORA (JP)

PCT/JP2022/020206

December 29, 2022

May 13, 2022

Click for automatic bibliography generation  

KATAYAMA ICHIRO (JP)
AOKI HIROTORA (JP)

B24B9/00; B24B53/053; B24B53/07; B24B55/00; B24D5/00; B24D5/14; H01L21/304

JP2020171971A	2020-10-22
JP2020171970A	2020-10-22
JP2019198899A	2019-11-21
JP2019166598A	2019-10-03
JP2015223669A	2015-12-14
JP2014220297A	2014-11-20
JP2009142979A	2009-07-02
JP2006021279A	2006-01-26
JP2003025198A	2003-01-29
JP2000042887A	2000-02-15
JPH11345788A	1999-12-14

MIYAZAKI Teruo et al. (JP)

View/Download PDF      PDF Help

Previous Patent: TERMINAL

Next Patent: HYDRAULIC DRIVE DEVICE