| 摘要 |
PURPOSE:To make it possible to perform rough to mirror finish machinings in a short time while inserting a grindstone through a workpiece only once by varying the grind properties of the peripheral surfaces of the grindstone along the axial direction for the purpose of improving the operationability. CONSTITUTION:The surface 19a of the workpiece 19 inserted by a grindstone is roughly ground firstly with a grinding member 2 having rough abrasive grain size. Secondly, the surface 19a is semifinished with a grinding member 3 containing diamond abrasive grain. After that, the surface 19a of the workpiece 19 is mirror finished with a grinding member 4 containing more minute diamond abrasive grain. And then, after the surface 19a of the workpiece 19 is lapfinished with a borazon grinding member 5, the workpiece is taken out from the grindstone 1.
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