セラミックスの研削における材料端部の欠け : 二次元単粒研削時の前下方へのき裂進展に対する研削点の移動を考慮した解析モデル

概要

論文の詳細を見る
It was previously shown that chipping size of the work corner in grinding of ceramics was subjected mainly to the length of the crack extending forward during its process. This paper focuses its attention on determination of the length of the crack in grinding by a wedge-shaped two-dimensional single grain. An analytical model for the crack extension was introduced; the cracks extend under the stress state induced near the grinding point on the work(early stage)and re-extend successively due to the proceeding of the point. It has been shown that the maximum length in the cracks and its trajectory obtained from this model approximately agree with those of the experiment for alumina ceramics and the length is larger than that from the traditional model considering only the early stage.
公益社団法人精密工学会の論文
1992-09-05