| 摘要 |
PURPOSE:To prevent waving on grinding face while to prevent breakdown of grinding section by waving the grindstone grinding section circumferentially thereby maintaining sufficient strength and rigidity even when the thickness at this grinding section is reduced considerably. CONSTITUTION:The grinding section 14 of a grindstone 4 is formed into a tube projecting from annular free end of a supporting member 2 radially while inclining having thickness of 0.1-0.5mm.. Said grinding section 14 is waved circumferentially to increase strength and rigidity at the grinding section 14 thereby even if the thickness t1 of grinding section 14 is reduced considerably, it will never breakdown nor produce waving on the grinding face 16 of workpiece 6 resulting in sufficiently good grinding face 16. |
