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慢走絲工作原理

慢(man)走絲工(gong)作原(yuan)理：

       慢走絲(si)(si)是利(li)用(yong)連續移動的(de)細金(jin)屬(shu)(shu)絲(si)(si)（稱為(wei)電(dian)極絲(si)(si)，一(yi)般(ban)為(wei)銅絲(si)(si)）作電(dian)極，對(dui)工(gong)(gong)件(jian)進行脈沖火(huo)花放電(dian)，產生6000度(du)以(yi)上高溫，蝕除金(jin)屬(shu)(shu)、切(qie)割成工(gong)(gong)件(jian)的(de)一(yi)種數控加(jia)工(gong)(gong)機床。慢走絲(si)(si)加(jia)工(gong)(gong)原(yuan)理(li)是在線電(dian)極與(yu)工(gong)(gong)件(jian)之間存在的(de)有縫(feng)間隙，持續放電(dian)去除金(jin)屬(shu)(shu)的(de)現(xian)象。

       由于慢(man)走(zou)絲(si)線(xian)(xian)(xian)切(qie)割(ge)(ge)機(ji)是采取線(xian)(xian)(xian)電極(ji)連續(xu)供絲(si)的(de)方式，即(ji)線(xian)(xian)(xian)電極(ji)在(zai)運動過程(cheng)中(zhong)完成加(jia)(jia)(jia)工(gong)(gong)，因此即(ji)使線(xian)(xian)(xian)電極(ji)發生損耗，也(ye)能(neng)連續(xu)地予(yu)以補充，故能(neng)提(ti)高零(ling)件(jian)加(jia)(jia)(jia)工(gong)(gong)精度(du)(du)。慢(man)走(zou)絲(si)線(xian)(xian)(xian)切(qie)割(ge)(ge)機(ji)所加(jia)(jia)(jia)工(gong)(gong)的(de)工(gong)(gong)件(jian)表面(mian)粗糙(cao)度(du)(du)通常可達(da)到Ra=0.8μm及以上，且慢(man)走(zou)絲(si)線(xian)(xian)(xian)切(qie)割(ge)(ge)機(ji)的(de)圓度(du)(du)誤(wu)差(cha)、直線(xian)(xian)(xian)誤(wu)差(cha)和尺(chi)寸誤(wu)差(cha)都較快走(zou)絲(si)線(xian)(xian)(xian)切(qie)割(ge)(ge)機(ji)好很多，所以在(zai)加(jia)(jia)(jia)工(gong)(gong)高精度(du)(du)零(ling)件(jian)時，慢(man)走(zou)絲(si)線(xian)(xian)(xian)切(qie)割(ge)(ge)機(ji)得到了(le)(le)廣泛應用。除了(le)(le)早期的(de)中(zhong)小型(xing)企業，在(zai)諸(zhu)如航(hang)空，汽(qi)車，醫療等大型(xing)企業的(de)加(jia)(jia)(jia)工(gong)(gong)工(gong)(gong)廠內也(ye)極(ji)為常見(jian)。