マルテンサイト鋼の研削き裂の生成機構(第2報) : 研削き裂の生成現象の整理と若干の理論的考察

概要

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We have decided to go back to the metal structure regarding the origin of the workpiece to investigate the formation mechanism of grinding crack from a metallographyical standpoint, In this report, the first step of the study was to organize the grinding crack type under various grinding conditions in Fe-(0.2-1.8)%C martensite steels. The next step mainly dealt with the formation mechanism of a grinding crack from a thermal standpoint. A summary of the most important results is given below. (1)The grinding crack is organized into four types in its relationship to the a' crystal grain and the α-γ phase. (2)The grinding temperature θ_g (or grinding temperature θ_g) due to the heat pulse of the abrasive grain was considered as the most influential dominating factor of the grinding microcrack. In addition, the grinding macrocrack may be attributed to the grinding temperature θ_g generated by the grinding wheel.
公益社団法人精密工学会の論文
1984-02-05