车削高温合金GH4169表面粗糙度及残余应力优化分析  

Optimization Analysis of Surface Roughness and Residual Stress of Turning Superalloy GH4169

作　　者：孔宪俊 胡光 赵明 刘娜 侯宁 王明海 KONG Xianjun;HU Guang;ZHAO Ming;LIU Na;HOU Ning;WANG Minghai(School of Mechatronics Engineering,Shenyang Aerospace University,Shenyang Liaoning 110136,China;Air China Shenyang Liming Engine Co.,Ltd.,Shenyang Liaoning 110136,China)

机构地区：[1]沈阳航空航天大学机电工程学院,辽宁沈阳110136 [2]中国航发沈阳黎明航空发动机有限责任公司,辽宁沈阳110136

出　　处：《机床与液压》2022年第20期32-37,共6页Machine Tool & Hydraulics

基　　金：中国航发自主创新基金项目(ZZCX-2019-019);航空科学基金项目(2019ZE054005);中国博士后科学基金项目(2020M680981);先进航空发动机结构件数字化加工技术辽宁省科技创新团队项目(LT2016008);辽宁省自然科学基金项目(2021-MS-264)。

摘　　要：为分析车削参数对已加工表面粗糙度、已加工表面形貌、残余应力的影响规律,针对高温合金GH4169设计正交车削试验,通过有限元仿真建立三维车削模型。结果表明:影响表面粗糙度的主次因素依次为进给量、切削速度、切削深度;影响残余应力的主次因素依次为进给量、切削深度、切削速度;确定在试验参数范围内最佳表面粗糙度和残余应力的参数组合分别为v_(c)=55 m/min、f=0.1 mm/r、a_(p)=0.3 mm和v_(c)=60 m/min、f=0.2 mm/r、a_(p)=0.25 mm。In order to analyze the effect law of turning parameters on machined surface roughness,machined surface topography and residual stress,orthogonal turning experiments were designed for GH4169,and 3D turning model was established by finite element simulation.The results show that the main and secondary factors affecting the surface roughness are feed rate,cutting speed,depth of cut in order;the main and secondary factors affecting the residual stress are feed rate,depth of cut,cutting speed in order;the optimal parameter combinations for surface roughness and residual stress within the experimental parameters are respectively determined to be v_(c)=55 m/min,f=0.1 mm/r,a_(p)=0.3 mm and v_(c)=60 m/min,f=0.2 mm/r,a_(p)=0.25 mm.

关 键 词：车削 正交试验 表面粗糙度 表面形貌 有限元法 残余应力 

分 类 号：TG51[金属学及工艺—金属切削加工及机床]