- 著者
-
臼井 英治
松本 英樹
松村 隆
- 出版者
- 公益社団法人 精密工学会
- 雑誌
- 精密工学会誌 (ISSN:09120289)
- 巻号頁・発行日
- vol.66, no.12, pp.1968-1973, 2000-12-05 (Released:2009-04-10)
- 参考文献数
- 12
The paper presents a structure model with single degree of freedom which may represent the non-linear characteristics of actual machine tool structure. By using an experimental set-up for orthogonal turning which utilizes the proposed structure model, it is shown that the non-linear variations of vibration parameters m, k, c with applied load can be measured with a special impulsive excitation technigic during the actual turning. Th obtained variations are proved to be quite similar to those obtained for usual turning lathe. Computer simulations of chatter on-set process are then carried out with taking both the variable m, k, c obtained and the non-linearity of cutting process reported in the previous papers into account. The predicted stability thresholds of chatter vibration through the simulation are in good quantitative agreement with the experimental results which include the well-known non-linear phenomena such as high feed and high speed stabilities of chatter and the finite amplitude chatter vibration.