基于增材制造的旋印电解加工工具阴极制备

Preparation of Cathode Tool for Counter-rotating Electrochemical Machining Based on Additive Manufacturing Technology

工具阴极的制备直接影响旋印电解加工的成形质量,尤其对于阵列凸台回转体工件的倍转速旋印电解加工,采用传统机械加工难度大,且难以解决窗口侧壁绝缘问题。针对这一难题,综合运用增材制造及电铸技术,提出一种基于增材制造的工具阴极制备方法,通过仿真和试验对电铸生长过程开展研究。结果表明:在侧壁绝缘条件下铸层均匀性良好,工具阴极能满足倍转速旋印电解加工需求,验证了利用增材制造技术制备工具阴极的可行性。

The manufacturing of cathode tool directly affects the forming effect of counter-rotating electrochemical machining,especially for multiple speed counter-rotating electrochemical machining of rotary workpiece with array boss,which made limitations for traditional processing and insulation methods of cathode tool. To solve this problem,a new cathode tool preparation technology is proposed,which comprehensively uses additive manufacturing and electroforming technology,and the growth process of electroforming was studied through simulation and experiment. The result showed that the uniformity of electrodeposition layer is better when side wall insulated,and the cathode tool meets the needs of rotary printing electrolysis at multiple speed,which verified the feasibility of using additive manufacturing technology to prepare cathode tool.