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慢走絲工作原理

慢走絲(si)工(gong)作原理：

       慢走(zou)絲是(shi)(shi)利用連續(xu)移動的細金(jin)屬(shu)絲（稱為(wei)電(dian)(dian)(dian)極絲，一般為(wei)銅絲）作電(dian)(dian)(dian)極，對工(gong)(gong)件進行(xing)脈沖火花放(fang)(fang)電(dian)(dian)(dian)，產(chan)生6000度以上高溫，蝕除金(jin)屬(shu)、切割成工(gong)(gong)件的一種數控加工(gong)(gong)機床(chuang)。慢走(zou)絲加工(gong)(gong)原理是(shi)(shi)在線(xian)電(dian)(dian)(dian)極與工(gong)(gong)件之間(jian)存在的有縫間(jian)隙，持(chi)續(xu)放(fang)(fang)電(dian)(dian)(dian)去除金(jin)屬(shu)的現象(xiang)。

       由于慢走絲線(xian)(xian)切割機(ji)是采取線(xian)(xian)電極連續(xu)供絲的(de)方(fang)式(shi)，即線(xian)(xian)電極在運動過程中完(wan)成加(jia)(jia)(jia)工，因此即使線(xian)(xian)電極發(fa)生(sheng)損耗，也能連續(xu)地予以(yi)補(bu)充，故能提高(gao)零件(jian)加(jia)(jia)(jia)工精度。慢走絲線(xian)(xian)切割機(ji)所加(jia)(jia)(jia)工的(de)工件(jian)表(biao)面粗糙度通(tong)常可達到Ra=0.8μm及以(yi)上，且(qie)慢走絲線(xian)(xian)切割機(ji)的(de)圓度誤(wu)差、直線(xian)(xian)誤(wu)差和尺寸誤(wu)差都較快走絲線(xian)(xian)切割機(ji)好很多，所以(yi)在加(jia)(jia)(jia)工高(gao)精度零件(jian)時，慢走絲線(xian)(xian)切割機(ji)得(de)到了廣泛(fan)應用。除(chu)了早期的(de)中小型企業，在諸如航(hang)空，汽車，醫療等大型企業的(de)加(jia)(jia)(jia)工工廠內也極為常見。