应用免穿丝型电火花线切割机床加工汽车连杆裂解槽实验研究  

Experimental Study on Cracking Groove of Automotive Connecting Rod using Wire-free WEDM Machine Tool

作　　者：黎毅锋 刘俊[1] 何鑫 LI Yifeng;LIU Jun;HE Xin(Foshan Polytechnic,Foshan 528137,Guangdong,China;School of Mechanical and Electrical Engineering,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]佛山职业技术学院,广东佛山528137 [2]广东工业大学机电工程学院,广州510006

出　　处：《机械科学与技术》2023年第1期125-131,共7页Mechanical Science and Technology for Aerospace Engineering

基　　金：广东省普通高校青年创新人才项目(2020KQNCX210)。

摘　　要：为了研究免穿丝型电火花线切割机床加工连杆大头孔内表面双侧裂解槽的质量及效率问题,以新一代免穿丝型电火花线切割机床为实验设备,分别进行单工位加工实验与双工位加工实验,其中双工位加工实验分为不同型号和同型号连杆裂解槽双工位加工实验。实验证明:单工位加工时实验样品槽深H随运丝频率的增大呈现先减少后增大,槽宽W受脉冲周期影响显著;同型号双工位加工时实验样品裂解槽槽深H受电源电压影响显著,左工位实验样品裂解槽槽宽W在脉宽30~40μs变化明显,右工位实验样品槽宽W随电压上升而增大。大部分实验组均能在20 s内达到连杆裂解槽加工要求,具有良好的应用前景。For studying Wire-free WEDM machine tool processing the inner surface cracking groove in the double sides of the connecting rod quality and efficiency,the new Wire-free WEDM machine tool is used as the experimental equipment,which carries out the single-station processing and double-station processing experiment,among the double-station processing experiment is divided into the different types and the same type of connecting rod cracking groove double-station processing experiment.The single-station processing experiments have proved that the experimental sample groove depth H decreases firstly and then increases by the wire moving frequency increasing in the single-station processing,and the groove width W is increased by the pulse period;the same type of double-station processing proves that the groove depth H is significantly affected by the power supply voltage.The width W of the cracking groove of the left station experimental sample changes from 30 to 40μs,and the groove width W of the right station experimental sample increases with the increasing of voltage.All experimental groups can meet the preparation requirements of connecting rod cracking groove by 20 s,and it have good an application prospective.

关 键 词：免穿丝型电火花线切割机床 连杆大头孔内表面双侧裂解槽 槽深 槽宽 

分 类 号：TG661[金属学及工艺—金属切削加工及机床] TG142[一般工业技术—材料科学与工程]