高速走丝电火花线切割多次切割修正量规律研究  

Research on the Compensation Rule of Multi-cutting in HSWEDM

作　　者：张艳[1] 刘志东[1] 王振兴[1] 徐安阳[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《电加工与模具》2010年第2期24-27,59,共5页Electromachining & Mould

摘　　要：研究了在使用复合工作液条件下高速走丝电火花线切割多次切割实际修正量的影响因素及规律,指出脉宽、加工电流等电参数以及限位棒间电极丝跨距、实际进给速度、丝速等非电参数对实际修正量有较大影响,而脉间和电极丝张力对其影响不明显。结合工艺试验指出,在综合考虑第一次与最后一次切割放电间隙差异的情况下,多次切割的实际修正量与理论修正量是相吻合的,并从极间状态分析了多次切割的放电特征。The rule of the actual compensation＇s influence factors in HSWEDM multi-cutting by using composite cooling liquid is studied, some factors include electrical parameters such as pulse width, machining current and non-electrical parameters such as wire between guide distance, actual feed speed, wire traveling speed, which have great influence on the actual compensation while the pulse interval and wire tension have no obvious effect on the actual compensation. The experiments results indicate that the actual composition is identical with the theoretical composition after considering the difference of discharge gap between first cutting and last ones, and the discharge characteristic in multi-cutting is also discussed.

关 键 词：电火花线切割加工 复合工作液 多次切割 修正量 放电间隙 

分 类 号：TG662[金属学及工艺—金属切削加工及机床]