微细电加工增效关键技术研究

摘要

微细电加工技术已成为解决介观尺寸范围内的导电材料的精密加工问题的重要工艺手段,但该技术目前的综合加工效率较低,使其难以满足当前大量微细加工的高效需求,主要原因包括:电极损耗快导致其需要反复修整、脉冲能量需要与加工精度和表面质量匹配导致脉冲能量受限.对此,围绕提升微细电加工效率,从并行加工结构、高频脉冲电源、电极在位制备和多工艺集成等多方面提出了多项关键措施,通过加工验证实验,使现有的微细电加工效率具有较明显的提升.%Micro-electrical discharge machining has been an important technology which can manufacture mesoscopic characteristic precisely on conductive materials.However,its machining efficiency is too low to meet current manufacturing requirement.The main reasons include two aspects:durative tool electrode wear results in tool electrode grinding frequently;Match between pulse energy and machining quality results in the selection limitation of pulse energy.Therefore,it aims at efficiency enhancement for micro-electrical discharge machining.Parallel stage structure design,alternating pulse power supply,multi-mode wire electrical discharge grinding,multi-functional spindle design,multi-technics combination,etc.Then,experiments have been done and the results show that the application of above measurements will be beneficial to enhance micro machining efficiency.