Technological research of metal wire electrochemical cutting based on pulse power

ZHU Xiaolong,LI Xiangsheng
(School of Mechanical Engineering & Automation, Zhejiang SciTech University, Hangzhou 310018,China)

Abstract: Aiming at improving the machining precision and surface quality in metal wire electrochemical cutting, the pulse power was applied on cutting machine tool. A theory model based on the pulse power was established, whose evaluation criterion of cutting effects is the width of cutting width. Side width change was mainly affected by voltage, pulse width, duty cycle and feeding speed of tool cathode so on. The optimization of the parameters was tested. The experimental results show that the seam width which is processed by lowering the voltage, reduceing pulse width and turning down the duty cycle is smaller than DC power processing width. It is possible to apply this method into processing of small size parts.
Key words: metal cutting; electrochemical; pulse power;model analysis