基于内花键电火花成型加工的工艺参数组合研究  

Research on Process Parameters Combination Based on Internal Spline EDM

作　　者：祁植力 孙伦业[1] QI Zhi-li;SUN Lun-ye(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan Anhui 232001,China)

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001

出　　处：《机械研究与应用》2022年第5期26-29,共4页Mechanical Research & Application

摘　　要：以DK7140电火花成型机床为实验平台,以内花键形状的通孔作为实验对象,采用电火花成型加工的方式,主要研究低压电流、放电时间和放电休止时间这三个工艺参数对加工效率和加工通孔的表面粗糙度的影响,通过采用正交试验法,分析得出较优的工艺参数组合,从而对实际生产中的工艺参数选用提供一定的参考价值。由最终的实验结果可知,当低压电流为9 A,放电时间为200μs,放电休止时间为15μs时,通孔内表面粗糙度最小,且放电时间是影响表面粗糙度的主要因素。实验数据可为实际生产中的加工参数选择提供有效参考。In this paper,the DK7140 EDM machine tool is used as the experimental platform,the internal spline-shaped through-hole is used as the experimental object,and the EDM method is used to mainly study the effects of three process parameters,namely low-voltage current,discharge time and discharge rest time,on the processing efficiency and the surface roughness of the machined through-hole.Then a better combination of process parameters is obtained by using the orthogonal test method,thereby providing a certain reference value for the selection of process parameters in actual production.It can be seen from the final experimental results that when the low-voltage current is 9A,the discharge time is 200μs,and the discharge rest time is 15μs,the inner surface roughness of the through-hole is the smallest;and the discharge time is the main factor affecting the surface roughness.

关 键 词：电火花成型加工 工艺参数 较优组合 表面粗糙度 

分 类 号：V261.61[航空宇航科学与技术—航空宇航制造工程]