单颗立方氮化硼磨粒磨削GH4169合金的仿真研究

根据单颗磨粒的切削特点,应用Deform 3D软件对单颗立方氮化硼磨粒磨削加工GH4169合金进行仿真,研究磨削过程中磨削深度和进给量对磨削温度、磨削力、磨削残余应力的影响。仿真研究表明,磨削深度对磨削结果的变化起主导作用,在所选用的磨削参数下,磨削温度介于350~650℃之间,进给方向磨削力最大为26 N,残余应力影响层深度可达60μm。研究结果为立方氮化硼砂轮高效磨削GH4169合金时磨削参数的选择提供了参考。

Simulation Study on Grinding of GH4169 Alloy with Single CBN Abrasive Particle

According to the cutting characteristics of a single CBN abrasive particle,Deform 3D software was used to simulate the abrasive machining of GH4169 alloy by a single CBN abrasive particle and investigate the influence of grinding depth and feed rate on the grinding temperature,grinding force and grinding residual stress during the grinding process.Simulation studies show that the grinding depth plays a leading role in the variation of grinding results.Under the selected grinding parameters,the grinding temperature is between 350~650℃,the maximum grinding force in the feed direction is 26 N,and the depth of the layer affected by the residual stress can reach 60μm.The findings provide a reference for the selection of grinding parameters for efficient grinding of GH4169 alloy by CBN grinding wheels.