慢走絲(si)(si)(si)(si)是(shi)電(dian)火花線切割(ge)的一種英文簡寫是(shi)(WEDM-LS)是(shi)利(li)用(yong)連續移動的細(xi)金屬絲(si)(si)(si)(si)(稱(cheng)為電(dian)極(ji)(ji)絲(si)(si)(si)(si))作(zuo)電(dian)極(ji)(ji),對工(gong)(gong)件進(jin)行(xing)脈(mo)沖火花放電(dian)蝕除(chu)金屬、切割(ge)成型(xing)。它(ta)主要用(yong)于加工(gong)(gong)各種形狀復雜(za)和精密細(xi)小的工(gong)(gong)件,根(gen)據(ju)電(dian)極(ji)(ji)絲(si)(si)(si)(si)的材料不同(一種是(shi)鉬絲(si)(si)(si)(si),一種是(shi)銅(tong)絲(si)(si)(si)(si)),電(dian)火花線切割(ge)機(ji)床通常分(fen)為兩(liang)類:一類是(shi)慢走絲(si)(si)(si)(si)(電(dian)極(ji)(ji)絲(si)(si)(si)(si)是(shi)銅(tong)絲(si)(si)(si)(si))電(dian)極(ji)(ji)絲(si)(si)(si)(si)作(zuo)低速單向運動,一般走絲(si)(si)(si)(si)速度低于0.2m/s,精度達0.001mm級(ji),表面(mian)質(zhi)量(liang)也接(jie)近磨削(xue)水平(ping)。電(dian)極(ji)(ji)絲(si)(si)(si)(si)放電(dian)后不再使(shi)用(yong),工(gong)(gong)作(zuo)平(ping)穩(wen)、均(jun)勻、抖動小、加工(gong)(gong)質(zhi)量(liang)較好。而且采用(yong)先進(jin)的電(dian)源技術,實現了高(gao)速加工(gong)(gong),最大生產(chan)率可達350mm2/min。