电火花微细孔加工关键技术研究  

Research on key technologies of EDM processing of micro-hole

作　　者：唐小会[1] 吉方[1] 张日升[1] 

机构地区：[1]中国工程物理研究院机械制造工艺研究所,四川绵阳621900

出　　处：《机械》2013年第5期59-62,共4页Machinery

摘　　要：针对微细孔加工排屑困难、容易产生频繁的非正常放电的技术难题,提出采用UMAC的前瞻控制策略和PLC放电状态实时检测相结合的技术路线。介绍了UMAC前瞻控制的基本原理和具体实现方法,脉冲电源检测与控制接口,微孔加工的轨迹自适应控制。应用表明,采用该技术路线可以实现电火花加工过程的正常放电进给保持、开路快速进给和短路按原轨迹快速回退,并加工出了Ф0.024 mm的微细孔。For the problem of frequent non-normal discharge and chip removal difficult in micro-hole EDM processing, the scheme of the look-ahead control of UMAC combined with PLC real-time discharge states detection is put forward. The fundamental and the specific applied methods of the look-ahead control of UMAC, the pulse power detection and control interface and the adaptive trajectory control of processing of micro-hole are introduced. Application shows that the proposed scheme can implement feed preserving in normal pulse discharge, quick feed in open circuit and quick backward motion along the original trajectory in short circuit. The micro hole with diameter 0.024mm is obtained using the adaptive control strategy.

关 键 词：UMAC 前瞻控制 微细电火花加工 自适应控制 

分 类 号：TG484[金属学及工艺—焊接]