ケンサク カコウ ニオケル ステンレスコウ ノ ヒョウメン セイジョウ ニツイテ ( ダイ1ポウ ) : ヘイメン ケンサク ニオケル イッパン トセキ ト CBNホイール トノ ヒカク

Microcracks different type of usual grinding crack are generated in grinding of stainless steel according to the types of the material. As they generate at depth of about 2-20 μm from ground surface nearly pararell to the surface, and are very microscopic, they cannot be found possibly by naked eye. Therefore, it is apprehended that they lead to grave defect for actual products. In this paper, to examine the effects in surface grinding on the ground surface quality, especially on the generating mechanism of the microcracks, 3 types of abrasive wheel were employed. The effects of 2 types of general abrasive wheels-19A and GC abrasive wheels- and CBN wheel that has attracted lately special interests as a beneficial wheel from a standpoint of ground surface quality on that quality were examined. Following results were obtained. 1) Constraint conditions of stresses by grinding force were infirm, because of the readiness of temperature rise and elastic deformation due to small size of works. Therefore, \u27\u27microcracks\u27\u27 were not observed in all grinding conditions employed. 2) Grinding surface temperature by CBN abrasive wheel is far lower than general abrasive (19A, GC) wheel. 3) Therefore, actual depth of cut is greater than theoretical one whereas do not occur like that in CBN abrasive wheel