【摘要】 建立切削过程中的微织构刀具连续磨损有限元模型一直是难点。为分析微织构刀具连续磨损问题，基于能量损失法，在有限元分析软件中建立了硬质合金刀具微切削Ti6Al4V钛合金材料过程中的微织构刀具连续磨损模型，并在刀具前刀面不同位置分别设计单个和多个微织构模型，分析微织构对刀具前刀面月牙洼磨损和后刀面磨损的影响。有限元分析结果表明，前刀面的微织构数量和位置对刀具的磨损程度有严重影响；刀具表面温度是影响月牙洼磨损深度的关键因素；而月牙洼磨损中心到切削刃刀尖的磨损与刀具的Mises应力有直接关系；影响刀具的后刀面磨损主要因素是刀具压力。更多还原

【Abstract】 In the process of cutting, it is difficult to build the finite element model of micro-textured tool continuous wear.In order to analyze the continuous wear of micro-textured tool, the continuous wear model of micro-textured tool during the micro-cutting of titanium alloy Ti6 Al4 V is established by using finite element analysis software based on energy loss method.Single and multiple micro-textured models are designed at different positions of the tool rake surface to analyze the effect of micro-textured on the crater wear and flank wear.The results of finite element analysis show that the number and position of the micro textures have a serious effect on the tool wear.Tool surface temperature is the key factor affecting the depth of the crater wear, the wear from the center of crater wear to the tip of the cutting edge is directly related to the Mises stress of the tool, and the main factor of the flank wear is the tool pressure.更多还原