基于超声椭圆振动辅助车削的铝合金表面微织构仿真  

Simulation on surface micro texture of aluminium alloy based on ultrasonic elliptical vibration cutting

作　　者：曹腾 路冬[1,2] 舒嵘 彭国文[1] 吴勇波 CAO Teng;LU Dong;SHU Rong;PENG Guowen;WU Yongbo(College of Aeronautical Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, Jiangxi, China;Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China)

机构地区：[1]南昌航空大学航空制造工程学院,江西南昌330063 [2]南方科技大学机械与能源工程系,广东深圳518055

出　　处：《陕西师范大学学报（自然科学版）》2018年第4期50-57,共8页Journal of Shaanxi Normal University：Natural Science Edition

基　　金：国家自然科学基金(51405218);江西省自然科学基金(20151BA206046)

摘　　要：针对需要切削成形的零件,提出了在完成零件车削的同时获取微织构表面的加工方法,即超声椭圆振动辅助车削表面微织构方法。对铝合金材料构建了反映微织构表面的理论模型,以此为依据对表面微织构进行了仿真,将仿真获得的微织构单元尺寸与实验获得的微织构单元尺寸进行比较,验证了仿真模型的正确性。分析了加工参数对微织构几何尺寸的影响,给出了微织构单元几何尺寸的具体算法以及微织构单元在工件表面的排列算法,为表面微织构几何参数的优化提供了依据。For cutting forming parts, an efficient method of ultrasonic vibration assisted face-turning（UVAT） is proposed,which serves to obtain the surface micro texture as soon as the workpiece is completed. Based on the aluminum alloy material, the theoretical model representing the surface morphology of micro texture is outlined, and the simulation of surface micro texture morphology is achieved. The simulation results of micro texture element size and the experiment outcomes are compared, verify the correctness of the simulation model. The influences of processing parameters on the geometric morphology of micro texture are analyzed, and the specific algorithm for the size of the micro texture unit and the algorithm of arranging the micro texture unit on the workpiece surface are given, which provide the basis for the optimization of the geometric parameters of the surface micro texture.

关 键 词：表面微织构 超声椭圆振动 车削 仿真 铝合金 

分 类 号：TG501[金属学及工艺—金属切削加工及机床]