基于ABAQUS的导电切削GCr15切削温度研究
2019-06-19
作者：潘星宇，滕文博，雷元，向彪，董霖
单位：西华大学机械工程学院；西华大学流体及动力机械教育部重点实验室
摘要：为了研究GCr15钢在导电加热条件下的切削温度，利用ABAQUS软件对GCr15钢的导电加热切削过程进行有限元仿真，建立有限元模型，研究了加热电阻通以加热电流产生的焦耳热、工件在外力作用下的弹塑性变形产热以及刀—屑摩擦产热引起工件材料的温升变化；利用有限元仿真模型分别对刀具前角、切削速度及切削深度进行单因素试验，研究三者对切削温度的影响。结果表明：当刀具前角增加时，刀具前角与切削温度呈负相关；当切削速度和切削深度分别增加时，两者均与切削温度呈正相关。
关键词：GCr15钢；ABAQUS；切削温度；仿真试验；导电切削
中图分类号：TG661；TH161文献标志码：ADOI：10.3969/j.issn.1000-7008.2019.06.007
Research on Cutting Temperature of EMH GCr15 Based on ABAQUS
Pan Xingyu，Teng Wenbo，Lei Yuan，Xiang Biao，Dong Lin
Abstract:In order to study the cutting temperature of GCr15 steel under the condition of conductive heating，the finite element simulation is carried out on the cutting process of conductive heating of GCr15 steel using ABAQUS，and the finite element model is established to study the Joule heat generated by the heating resistor through the heating current，the elastoplastic deformation of the workpiece，the heat production of the workpiece and the temperature rise of the workpiece caused by the friction heat generation of the chip.The EHM model is established to analyze the influence of the rake angle，cutting speed and cutting depth on the cutting temperature.The experimental results show that the maximum cutting temperature of the workpiece is decreased as the rake angle is increased.With the increase of cutting speed，the maximum cutting temperature of the workpiece is increased gradually.The maximum cutting temperature is increased as the cutting depth is increased.
Keywords:GCr15 steel；ABAQUS；cutting temperature；simulation result；EHM