Receptance Coupling Study of Tool-Length Dependent Dynamic Absorber Effect
Receptance Coupling Study of Tool-Length Dependent Dynamic Absorber Effect
复制标题
工具长度相关的动态吸收器效应的接收耦合研究
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
T. Schmitz
中科院分区：
文献类型：
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作者：
T. Burns;T. Schmitz
使用细长立铣刀高速加工铝合金时，无颤振材料去除率受到切削系统动力学的限制，切削系统动力学随刀具长度而变化。传统的稳定波瓣图预测的最大允许的芯片宽度为一个给定的主轴转速确定使用的工具点频率响应函数。一个简短的评论给出了一个结合的分析和实验方法，使用容抗耦合子结构分析（RCSA）的快速预测的工具点的频率响应的工具长度是不同的。该方法的基本思想是将测得的直接位移与力感受（即，频率响应）的主轴保持系统的自由端与工具接收的解析表达式。然后，该方法用于解释在刀具长度调整的背景下观察到的动态减振器效应。版权所有© 2004 by ASME
The chatter-free material removal rate during high-speed machining of aluminum using long, slender endmills is limited by the cutting system dynamics, which changes with the tool length. Traditional stability-lobe diagrams that predict the maximum allowable chip width for a given spindle speed are determined using the tool point frequency response function. A brief review is given of a combined analytical and experimental method that uses receptance coupling substructure analysis (RCSA) for the rapid prediction of the tool-point frequency response as the tool length is varied. The basic idea of the method is to combine the measured direct displacement vs. force receptance (i.e., frequency response) at the free end of the spindle-holder system with analytical expressions for the tool receptances. The method is then used to provide an explanation for the dynamic absorber effect that has been observed in the context of tool-length tuning.Copyright © 2004 by ASME