Method of surface grinding of workpiece and double sided grinding machine

摘要

To further efficiently and accurately grind a workpiece which is composed of a complex material of hard grains and a metal base material by using a pair of grinding stones.SOLUTION: When plane-grinding a workpiece 6 composed of a complex material 3 of hard grains 1 and a metal base material 2 by using a pair of grinding stones 7, 8, at least the grinding stone 7 out of the pair of grinding stones 7, 8 is intermittently cut at a constant time interval T by a constant cut-in amount D. The constant cut-in amount D is an amount at which the grinding stone 7 can grind the workpiece 6 within a constant time, and can perform only spark-out grinding prior to succeeding cut-in. As the grinding stones 7, 8, used is a grinding stone whose grain size ratio A/B of an average abrasive grain size A of the grinding stones 7, 8 and grain sizes B of the hard grains 1 of the workpiece 6 is a proper grain size ratio.SELECTED DRAWING: Figure 1