旋削加工におけるびびり振動の発生判定に関する研究 : 第3報, 混在する励振機構の検討

概要

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In the cutting process, chatter vibration greatly restricts the accuracy and efficiency. Establishment of an objective and practical method which can be used to estimate the commencement of chatter is necessary in the field of automatic manufacturing systems and dynamic performance tests of machine tools. However, qualitative estimation of excitation mechanisms of mingling regenerative with parametric vibrations has not yet been investigated. In this study, therefore, the estimation of transient vibration is investigated for the turning process, by a statistical method. Chatter instability is predicted by theoretical analysis. The results are confirmed by excitation and cutting tests. Furthermore, the generation mechanism of transient vibration is elucidated experimentally. The results obtained from this study are as follows : The excitation mechanisms of mingling regenerative and parametric vibrations are clarified qualitatively. The transient area between parametric and regenerative vibrations can be estimated qualitatively. The point of chatter vibration commencement can be estimated qualitatively in the turning process.
一般社団法人日本機械学会の論文
1996-08-25