| 摘要 |
PURPOSE:To enable a workpiece to be worked accurately without elongating working time by dressing a grinding wheel a predetermined amount after tooling the grinding wheel with a truering tool without deflection every time the workpiece is ground by a predetermined amount. CONSTITUTION:The deflection of a grinding wheel 12 is removed by a truering tool 24. Next, a large chip pocket is formed on the grinding surface of grinding wheel 12 by a dressing roll 34 under the dressing requirement of dressing amount of Rmm<2>/mm. Every time under such conditions, a workpiece W is ground by a predetermined amount, the grinding wheel 12 is tooled by the truering tool 24 and cutting edges on the grinding surface of grinding wheel 12 are arranged to improve the surface roughness. Then, dressing is carried out by a half of dressing amount right after the removal of deflection of grinding wheel 12 by the dressing roll 34 to enlarge the chip pocket on the grinding wheel 12 and reduce grinding resistance for working the workpiece W accurately.
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