MS-WEDM第三次切割工艺参数优化实验研究
Study on Parameter Optimization of Third Time Cutting Process for MS-WEDM

研究MS-WEDM多次切割中第三次切割参数对表面质量和切割速度的影响规律，寻求最优参数组合，有利于提高多次切割的加工质量。单因素试验研究了第三次切割参数的脉宽，脉间，功放，丝速等参数对表面粗糙度和切割速度的影响规律，选取4水平4因素进行了正交试验，用综合评分法将表面粗糙度和切割速度的多目标优化问题转化为加权综合评分的单目标问题。结果表明：更优的加工方案为脉宽2 μs，脉间5 μs，功放1个，丝速3 m/s，并通过试验验证，其表面粗糙度为1.26 μm，切割速度为84.86 mm2/min，加权综合评分为0.22。
The influence of the third time cutting parameters of medium-speed wire cut electrical discharge machining (MS-WEDM) multiple cutting on the surface quality and cutting speed was studied, which was conducive to improve the quality of multiple cutting process. It was a single factor experiment to study the influence that the third cutting parameters of pulse width, inter-pulse, power amplifier, and wire speed on the surface roughness and cutting speed. It made experiment of the orthogonal experiment with four level and four factors. With comprehensive evaluation method made multi-objective optimization problem of the surface roughness and the cutting speed, which was transformed into single objective problem of the weighted composite score. The results show that the more optimal pulse width is 2 μs, the optimal pulse interval is 5 μs, the optimal power amplifier is 1, the optimal wire speed is 3 m/s, and the surface roughness is 1.26 μm, the cutting speed is 84.86 mm2/min, the weighted composite score is 0.22