GCr15钢导电加热硬切削性能有限元仿真  

Finite Element Simulation of Electric Hot Machining Process of GCr15 Steel

作　　者：向彪[1] 董霖[1] 康裕华 XIANG Biao DONG Lin KANG Yuhua(School of Mechanical Engineering, Ministry of Education Key Laboratory of Fluid and Power Machinery, Xihua University, Chengdu Sichuan 610039, China)

机构地区：[1]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,四川成都610039

出　　处：《润滑与密封》2017年第8期82-86,共5页Lubrication Engineering

基　　金：教育部“春晖计划”合作科研项目(Z2016132);2013年国家人社部留学回国人员科技活动择优资助项目;流体及动力机械教育部重点实验室研究基金项目(西华大学JYBFXYQ-1,szjj2016-010);西华大学省部级学科平台制造与自动化重点实验室(重点研究基地)开放课题(szjj2015-081);西华大学研究生创新基金项目(ycjj2016035)

摘　　要：为研究常见的耐磨和难加工材料GCr15钢的硬切削性能,利用Deform-3D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,在切削参数一定的情况下,分析加热电流对刀具磨损深度、刀具主切削力,以及刀-屑接触区温度的影响。试验结果表明:刀具磨损深度随着加热电流的增加先逐渐增加然后逐渐减小,当加热电流达到一定值时刀具磨损深度锐减;随着加热电流的增加,刀具的主切削力逐渐减小,特别是当加热电流达到一定值时,主切削力开始明显减小,并呈现出线性下降趋势。GCrl5 steel is one of the common wear-resisting and difficult processing materials,in order to study its hard cutting performance, its electric hot machining process was simulated by the finite element simulation software Deform-3D. The finiie element model （FEM） of electric hot machining process of GCrl5 steel was built, and the influence of heating current on the wear depth of tool, the main cutting force, and the tool-chip contact zone temperature was analyzed under the condition of limited cutting parameter.Experimental results show that the tool wear depth is increased gradually and then decreased with the increasing of heating current.The wear depth is reduced sharply when the heating current reaches a cer- tain value.With the increasing of heating current, the main cutting force is decreased gradually. Especially when heating current reaches a certain value, the main cutting force is decreased obviously with linear decreasing trend.

关 键 词：GCr15钢:DEFORM+3D 导电加热切削 加热电流 刀具磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]