アコースティックエミッションを用いた研削焼けのインプロセス検出

概要

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Grinding tests under severe grinding conditions t have been performed in this study for the in-process detection of grinding burn and the acousticemission signals generated while grinding burn was in-progress have analyzed and compared with the signal before grinding burn occurred. The following results have been obtained : (1) Under identical grinding conditions, the amplitude of AE signals increased with the number of grinding cycles and the progress of grinding burn. (2) AE around the frequency of 10 kHz While is determined from pitch of abrasive grains and grinding speed, has large power density when the grains are new and grinding burn has not yet taken place, but it decreases as the grains become worn and grinding burn proceeds. (3) Frequency components of AE signal over 100 kH_Z increases with the generation and progress of grinding burn. (4) From the above result, AE signal has been split into two channels; one for signals higher than 10 kH_Z (B), the other for signals between 100 kHz to 300 kHz (A). The ratio of the levels from these signals (A/B) showed good orrespondence with the progress of grinding burn. But utilizing this relationship, it becomes possible to detect grinding burn in-process by mean of acoustic emission.
公益社団法人精密工学会の論文
1983-09-05