慢走絲機床屬于高精密加工機床，可以實現幾個μm的加工精度，表面粗糙度Ra可達<0.2μm。但有些模具工廠在使用慢走絲機床時，不注意細節，以為好機床隨隨便便就能實現高效的高精密加工。事實上，精密加工務必樹立精密加工概念，在加工過程才能保證加工更加精準。

西部慢走絲的工藝前提：

　　慢走絲機床都帶有(you)工藝參(can)數(shu)庫(ku)，其工藝參(can)數(shu)一般都是在(zai)具體條(tiao)件(jian)下(xia)（如工件(jian)材料、電極絲、溫度20±3℃、濕度40-80%等）試驗得出(chu)的。如果下(xia)述(shu)條(tiao)件(jian)發生(sheng)變化或(huo)者(zhe)不(bu)能達標，可能會導致加工結果產(chan)生(sheng)偏差。

　　1）沖水規范：按標準參數加(jia)工(gong)時，水壓表指示值與理論值相比較后，差(cha)值應小于0.5bar；

　　2）工(gong)件與噴嘴間隙：0.05~0.10mm；

　　3）表面粗糙度要求Ra≧0.35μm時可選用注重效率型的切割絲（推薦使用與機床隨機所配相同類型的絲），當Ra<0.35μm時，為了獲得好的加工表面，選用注重表面的鍍鋅絲進行加工；

　　4）精加工時，請保證水μS<10，尤其在精修加工時，請按工藝參數要求。必要時，請更換樹脂或純凈水。

西部慢走絲的工作原理：

　　慢(man)走絲(si)(si)(si)(si)是(shi)利用(yong)連續移動的(de)(de)(de)細金(jin)屬絲(si)(si)(si)(si)（稱為(wei)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)(si)(si)）作電(dian)(dian)(dian)(dian)極(ji)，對工(gong)(gong)(gong)(gong)件(jian)進(jin)行脈沖(chong)火(huo)(huo)花放電(dian)(dian)(dian)(dian)蝕除金(jin)屬、切割成型的(de)(de)(de)一種(zhong)加(jia)工(gong)(gong)(gong)(gong)機床。慢(man)走絲(si)(si)(si)(si)加(jia)工(gong)(gong)(gong)(gong)時在(zai)線(xian)電(dian)(dian)(dian)(dian)極(ji)與(yu)工(gong)(gong)(gong)(gong)件(jian)之間(jian)存在(zai)的(de)(de)(de)疏(shu)松接觸(chu)(chu)式輕(qing)壓放電(dian)(dian)(dian)(dian)現象。當(dang)(dang)柔性(xing)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)(si)(si)與(yu)工(gong)(gong)(gong)(gong)件(jian)接近到(dao)(dao)通常(chang)(chang)認(ren)為(wei)的(de)(de)(de)放電(dian)(dian)(dian)(dian)間(jian)隙(例如8～10μm)時，并(bing)(bing)不(bu)發(fa)生(sheng)火(huo)(huo)花放電(dian)(dian)(dian)(dian)，甚至當(dang)(dang)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)(si)(si)已接觸(chu)(chu)到(dao)(dao)工(gong)(gong)(gong)(gong)件(jian)，從(cong)顯微(wei)(wei)鏡中已看(kan)不(bu)到(dao)(dao)間(jian)隙時，也常(chang)(chang)常(chang)(chang)看(kan)不(bu)到(dao)(dao)火(huo)(huo)花，只有當(dang)(dang)工(gong)(gong)(gong)(gong)件(jian)將電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)(si)(si)頂彎并(bing)(bing)偏移一定距離(li)(幾(ji)微(wei)(wei)米(mi)到(dao)(dao)幾(ji)十(shi)微(wei)(wei)米(mi))時才發(fa)生(sheng)正常(chang)(chang)的(de)(de)(de)火(huo)(huo)花放電(dian)(dian)(dian)(dian)。此時線(xian)電(dian)(dian)(dian)(dian)極(ji)每進(jin)給(gei)1μm，放電(dian)(dian)(dian)(dian)間(jian)隙并(bing)(bing)不(bu)減少1μm，而是(shi)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)(si)(si)增加(jia)一點線(xian)間(jian)張力，工(gong)(gong)(gong)(gong)件(jian)則增加(jia)一點側(ce)向壓力，顯然(ran)，只有電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)(si)(si)和工(gong)(gong)(gong)(gong)件(jian)之間(jian)保持一定的(de)(de)(de)輕(qing)微(wei)(wei)接觸(chu)(chu)壓力后才能形成火(huo)(huo)花放電(dian)(dian)(dian)(dian)。據此認(ren)為(wei)在(zai)電(dian)(dian)(dian)(dian)極(ji)絲(si)(si)(si)(si)和工(gong)(gong)(gong)(gong)件(jian)之間(jian)存在(zai)著某(mou)種(zhong)電(dian)(dian)(dian)(dian)化學產生(sheng)的(de)(de)(de)絕緣薄(bo)膜(mo)介質(zhi)

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