关键词: 微铣削, 刀具破损, 工艺参数, 仿真分析

Abstract: With the decrease of the micro motor size,the application of micro-milling in the motor production is more and more common.Because of the small diameter and low strength of the micro-milling cutter,it is easy to be damaged in the actual milling process.The results show that the ultimate cause of cutter breakage is that the maximum tensile stress exceeds the bending strength of the cutter.A simulation model of micro-milling titanium alloy was established to study the influence of installation eccentricity and process parameters on the maximum tensile stress of micro-milling cutter.The simulation results can guide the installation of micro-milling cutter and selection of process parameters,which avoid damage and failure of the cutter in the process of micro-milling.

Key words: micro-milling, tool breakage, installation eccentricity, simulation analysis