CAJ | 학술논문

应用正交试验设计的方法，对高速走丝电火花线切割加工中的峰值电流、脉冲宽度、脉间比等工艺条件进行了试验优化设计，以机床加工速度和零件表面粗糙度为目标进行电参数优化。针对这两个指标性质不同，分别对其进行量纲一化处理，使其均转为望大特性；考虑这两指标的不同重要性，运用加权平均法将问题转化成单目标问题以实现电参数优化。结果表明：该优化方法是可行的，加工参数中的峰值电流、脉冲宽度、脉间比最优取值分别为24 A、12μs和3。
응용정교시험설계적방법，대고속주사전화화선절할가공중적봉치전류、맥충관도、맥간비등공예조건진행료시험우화설계，이궤상가공속도화령건표면조조도위목표진행전삼수우화。침대저량개지표성질불동，분별대기진행량강일화처리，사기균전위망대특성；고필저량지표적불동중요성，운용가권평균법장문제전화성단목표문제이실현전삼수우화。결과표명：해우화방법시가행적，가공삼수중적봉치전류、맥충관도、맥간비최우취치분별위24 A、12μs화3。
By using the method of orthogonal test design,the technology terms such as,peak value current,pulse width and in-tra-pulse ratio in machining of WEDM of high speed running wire were optimized and designed experimentally. The electrical parame-ters were optimized by taking the machining speed of machine and surface roughness of parts as the goal. Aimed at these two indicators were different in nature,the dimensionless processing was done for them respectively to make both of them transferred to larger-the-bet-ter characteristic. In considering the different importance of these two indicators,the weighted mean method was used to transform the problem into a single objective problem so as to realize the optimization of electrical parameters. The results show that this method is feasible. The optimal values of machining parameters such as peak current,pulse width and intra-pulse ratio are 24 A,12μs and 3 re-spectively.