电解钻孔加工(TiB+TiC)/TC4复合材料仿真模拟与试验  

Simulation and Experimentation of Electrochemical Drilling Processing of(TiB+TiC)/TC4 Composites

作　　者：沈俊志 李寒松[1] 杨海群 马鑫 曹先博 徐国梁 SHEN Junzhi;LI Hansong;YANG Haiqun;MA Xin;CAO Xianbo;XU Guoliang(College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《电加工与模具》2025年第2期37-42,共6页Electromachining & Mould

基　　金：国家自然科学基金项目(52275432);国家自然科学基金创新研究群体项目(51921003);江苏省研究生科研实践创新计划项目(KYCX22_0343)。

摘　　要：钛基复合材料由于优异的机械性能在航空航天领域得到应用,但其加工性能也受到了限制。针对钛基复合材料的电解钻孔进行了仿真研究和试验验证,探索不同绝缘方式和侧壁结构的工具阴极对加工性能的影响,进而优选合适的工具阴极和工艺参数。结果表明,采用底部直径20 mm、工作圈高度0.5 mm、侧壁向内收缩0.7 mm的工具阴极,并在其底部开设13个直径1 mm的出液孔,能有效优化加工时的电场和流场,最终得到直径21.43 mm、深度39.01 mm的盲孔。Titanium matrix composites have been applied in the aerospace field due to their excellent mechanical properties,however their processing performance is also limited.Simulation and experimental verification were conducted on the electrochemical drilling of titanium matrix composites,exploring the influence of different insulation methods and sidewall structures of tool cathodes on machining,in order to select suitable tool cathodes and process parameters.The result showed that using a tool cathode with a bottom diameter of 20 mm,a working ring height of 0.5 mm and a side wall inward contraction of 0.7 mm with opening 13 outlet holes of a diameter 1 mm at the bottom,can effectively optimize the electric field and flow field during processing,resulting in a blind hole with a diameter of 21.43 mm and a depth of 39.01 mm.

关 键 词：电解钻孔 流场仿真 阴极设计 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]