ラッピングにおける砥粒粒径分布推移のシミュレーション (第3報)
砥粒の追加供給を行う場合
1997 年 63 巻 6 号 p. 869-873
詳細
1997 年 63 巻 6 号 p. 869-873
The time dependent distribution of abrasive grain size in a lapping process has been obtained from the simulation which was described in the last paper. It has also prescribed the decrease in the amount of effective working grains. This paper describes a new analytical procedure to estimate a rational amount of additional abrasives at each time of repeated supply from the simulatiOn result. It is based on the concept that the rational amount is what is necessary and sufficient to supplement the decrease mentioned above. It is shown that the analytically estimated rational amount decreases with time in the beginning of a lapping process, however it gradually reaches a constant value. This seems to be due to the decrease in effectively working grains with time. Finally a lapping test is performed supplying the estimated amount of abrasive grains. The result shows that the additional supply is sufficiently effective, there fore it suggests that this analytical procedure and its fundamental concept are reasonable.
