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西部慢走絲

西部慢走絲

  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。

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  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(si)機床都(dou)帶有工藝(yi)參數庫,其工藝(yi)參數一般(ban)都(dou)是在具體條件(jian)下(如工件(jian)材料、電極絲(si)、溫(wen)度20±3℃、濕度40-80%等)試驗(yan)得出(chu)的。如果下述(shu)條件(jian)發生變化或者不(bu)能達標,可能會導致(zhi)加(jia)工結果產生偏差(cha)。


  1)沖水規范(fan):按標(biao)準參數加工時,水壓表指示值(zhi)與理論值(zhi)相比較后,差值(zhi)應小于0.5bar;

  2)工件(jian)與(yu)噴嘴間隙(xi):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。


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西部慢走絲的工作原理:


  慢走絲是(shi)利(li)用連(lian)續移動的(de)細金(jin)屬絲(稱為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)絲)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji),對工(gong)件(jian)(jian)進行脈沖(chong)火(huo)(huo)花放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)蝕除金(jin)屬、切割成型的(de)一(yi)(yi)種加工(gong)機床。慢走絲加工(gong)時(shi)在(zai)(zai)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)與工(gong)件(jian)(jian)之(zhi)間(jian)(jian)存(cun)在(zai)(zai)的(de)疏松接觸(chu)式輕壓放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)現象(xiang)。當柔性電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)絲與工(gong)件(jian)(jian)接近到通(tong)常認為的(de)放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)間(jian)(jian)隙(例如8~10μm)時(shi),并不發生火(huo)(huo)花放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian),甚至(zhi)當電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)絲已接觸(chu)到工(gong)件(jian)(jian),從顯(xian)微(wei)(wei)鏡(jing)中已看不到間(jian)(jian)隙時(shi),也常常看不到火(huo)(huo)花,只有(you)當工(gong)件(jian)(jian)將電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)絲頂彎并偏移一(yi)(yi)定距離(幾微(wei)(wei)米到幾十微(wei)(wei)米)時(shi)才發生正(zheng)常的(de)火(huo)(huo)花放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。此時(shi)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)每進給1μm,放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)間(jian)(jian)隙并不減少(shao)1μm,而是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)絲增加一(yi)(yi)點(dian)線(xian)間(jian)(jian)張力(li),工(gong)件(jian)(jian)則增加一(yi)(yi)點(dian)側向壓力(li),顯(xian)然(ran),只有(you)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)絲和工(gong)件(jian)(jian)之(zhi)間(jian)(jian)保持一(yi)(yi)定的(de)輕微(wei)(wei)接觸(chu)壓力(li)后(hou)才能形(xing)成火(huo)(huo)花放(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。據此認為在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)極(ji)(ji)絲和工(gong)件(jian)(jian)之(zhi)間(jian)(jian)存(cun)在(zai)(zai)著某種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)化學產生的(de)絕緣(yuan)薄(bo)膜介(jie)質


  東莞市宏麟精密模具有限公司是一家集研發、生產與銷售為一體的現代化生產企業。公司擁有一批專業人才及整套先進生產設備,并擁有精密的檢測設備和品控人員,確保了產品的可靠性和穩定性。14年西部慢走絲加工經驗,面向東莞、中山、江門、江蘇、浙江等長三角和珠三角地區,提供西部慢走絲、五金模具加工、精密五金模具加工等服務,專業非標定制,咨詢熱線:130-6618-7868