精密工学会誌
Online ISSN : 1882-675X
Print ISSN : 0912-0289
ISSN-L : 0912-0289
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2報)
破砕確率, 砥粒数増加率, 推移確率に対する検討
吉岡 正人萩原 純一
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1995 年 61 巻 9 号 p. 1270-1274

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The time-dependent distribution of abrasive grain size in a lapping process was simulated by means of essentially the same method as that in the last report. However, the following two parameters were newly obtained by a crushing experiment of grains and used in the simulation, those were a multiplication rate of the number of grains and the probability of transition between different divisions of grain size. The breakage probability of grains was also revised on the basis of an experimentally observed change of the mean grain size. The main results obtained are as follows; (1) The value of 3.67 was obtained for the multiplication rate. (2) The transition probability is expressed by a continuous function of grain size x as shown in Fig.5, which is approximated by Eq. (6) in the text. (3) The revised values mentioned in (1) and (2) were found to give more advanced simulation by comparing with the experimentally obtained change of distribution. (4) The difference of breakage probability function φ (x) did not seriously affect the transition behavior of simulated distribution.

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