电火花线切割加工工艺参数对工艺指标影响的研究

Research on the influence of process parameters on process index by WEDM

为了更好地分析和研究电火花线切割技术,结合国内外学者的研究进展,全面分析与总结了线切割加工工艺参数对工艺指标的影响规律及工艺参数的优化方法。通过单因素实验法分析了电火花线切割中脉冲宽度、放电间隙、电流与电压等电参数对工艺指标的影响规律;系统分析了运丝速度、功率放大管、变频值和电极丝等非电参数对工艺指标的影响规律;在多参数耦合作用下,分析了各参数对重要工艺指标的影响及工艺参数优化,结果发现电参数对切割速度和表面粗糙度的影响比非电参数更加明显。通过对近年来电火花线切割加工工艺参数对工艺指标影响的相关研究的分析与总结,为线切割加工技术的发展提供有益参考。

In order to better analyze and study WEDM technology,combined with the research progress of scholars at home and abroad,the influence law of WEDM process parameters on process indexes and the optimization method of process parameters are comprehensively analyzed and summarized.The effects of pulse width,discharge gap,current and voltage on process parameters in WEDM were analyzed by single factor experiment.The influence of non-electric parameters such as wire transport speed,power amplifier tube,frequency conversion value and electrode wire on the process index is systematically analyzed.Under the coupling effect of multiple parameters,the influences of each parameter on the important process parameters and the optimization of process parameters were analyzed.The results showed that the influence of electrical parameters on cutting speed and surface roughness was more obvious than that of non-electrical parameters.This paper analyzes and summarizes the influence of electric spark wire-cutting process parameters on process indexes in recent years,and provides useful reference for the development of wire-cutting technology.