镍基高温合金短电弧加工工艺参数优化  

Optimization of Process Parameters for Short Arc Machining of Nickel Base Superalloy

作　　者：许燕[1] 王博[1] 周建平[1] XU Yan;WANG Bo;ZHOU Jianping(School of Mechanical Engineering,Xinjiang University,Urumqi Xinjiang 830047,Chin)

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830047

出　　处：《机床与液压》2018年第11期106-110,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51365053);自治区科技人才培养项目资助(gn2015yx008)

摘　　要：为了对短电弧加工镍基高温合金材料过程中的材料去除速度,表面质量和电极损耗等工艺目标进行综合评价,在新型数控短电弧铣床设备上对峰值电流、脉冲宽度、占空比和电压等可调工艺参数进行正交试验,并运用灰色理论进行试验数据的分析。将复杂多变的多工艺目标转换为单一评价指标,即灰关联度。该方法很大程度地简化了试验过程,最终得到最优工艺参数组合方案。试验结果表明:得到的参数组合能够在保证表面质量的前提下提高短电弧加工效率并降低电极损耗率。In order to comprehensively evaluate the material removal rate,surface quality and electrode loss in the process of short arc machining nickel base superalloy,the orthogonal test of the adjustable process parameters of peak current,pulse width,duty cycle and voltage is carried out on the new type Numerical Control（ NC） short arc milling machine. Experimental data were analyzed by using grey theory. The complex multi process target was transformed into a single evaluation index,i. e. grey relational grade. The test process could be greatly simplified by the method,and finally the optimal combination of process parameters was gotten. The experimental results show that the combination of parameters can improve the machining efficiency and reduce the electrode loss under the premise of ensuring the surface quality.

关 键 词：镍基高温合金 短电弧加工 灰色理论 参数优化 

分 类 号：TH164[机械工程—机械制造及自动化]