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Mitigating Chatter in Micro and Mesoscale Milling by Tuning Fixture Dynamics: A Feasability Study

机译:通过调整治具动力学缓解微细加工和中细加工中的颤动:一项可行性研究

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摘要

Chatter in micro and mesoscale milling adversely affects the surface quality of machined parts and increases the occurrence of tool breakage. Due to the relatively small sizes of micro and mesoscale tools with respect to that of the machine, this phenomenon is typically driven by the tool dynamics. In this paper, the effectiveness of a fixturing device, designed with the aim of mitigating chatter in micro and mesoscale milling, is assessed for various commercially available tools.udThe feasibility study discussed in this paper used a combination of numerical and analytical modeling, including finite element analysis and beam theory. By comparing the dynamic response of the machining center with fixtures of various designs, a technological window for the applicability of this approach was determined.
机译:微观和中尺度铣削中的颤动会对加工零件的表面质量产生不利影响,并增加刀具破损的发生。由于相对于机器而言,微型和中尺度工具的尺寸相对较小,因此这种现象通常是由工具动力学驱动的。本文针对各种市售工具评估了旨在减少微细加工和中尺度铣削中颤动的夹具装置的有效性。 ud本文所讨论的可行性研究结合了数值模型和分析模型,包括有限元分析和梁理论。通过比较加工中心与各种设计的夹具的动态响应,确定了该方法的适用性的技术窗口。

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