摘要
为了解决电火花加工成型电极在线修复问题,基于已有电火花加工机床的加工条件参数,提出了石墨电极在线逆向加工的修复方法。首先根据电火花加工经验设计了加工条件参数的逆向加工实验方案,然后针对不同的放电时间、放电休止时间、峰值电流、辅助回路、伺服速度等主要条件参数进行了电极逆向加工实验,从而得到了它们对石墨电极融蚀的影响,并通过分析与归纳,总结出了石墨电极在线逆向加工所需条件参数,最后通过逆向加工修复和逆向加工制作石墨电极对这些加工条件参数进行了验证。实验研究结果表明,在现有电火花加工机床上通过选择合适的加工条件和参数,在线逆向加工修复石墨电极的方法是可行而且高效的。
In order to solve the problem of graphite electrode online repairing in electrical discharge machining（ EDM）,the graphite electrode online repairing method by reverse processing was proposed based on the machining conditions and parameters of existing electrical discharge machine tools. Reverse processing experiment scheme of the conditions and parameters was designed according to the electrical discharge machining experience,and then the electrode reverse processing experiments were carried out at different conditions and parameters of discharge on time,discharge off time,peak current,auxiliary circuit,servo speed,thus the influences of their erosion to graphite electrodes were obtained,and through analysis and induction,the conditions and parameters for the graphite electrode online reverse processing were summarized,and finally the conditions and parameters were validated by the reverse repairing and reverse processing graphite electrodes. The experimental results show that the method of online reverse repairing graphite electrodes is feasible and efficient by selecting suitable processing conditions and parameters in the existing EDM machine tools.
出处
《机电工程》
CAS
2015年第3期362-365,共4页
Journal of Mechanical & Electrical Engineering
关键词
石墨电极
在线修复
加工条件参数
电火花加工
graphite electrode
online repairing
machining conditions and parameters
electrosparking
