為了避免一(yi)些人員和資金的浪費，我們在操(cao)作中走絲技術(shu)線切(qie)割(ge)必須具備下(xia)列條件，中走絲線切(qie)割(ge)加工(gong)才能正常運行(xing)：

1. 鉬絲與工(gong)件(jian)(jian)的被加(jia)工(gong)表面之間(jian)必須(xu)保持一定(ding)間(jian)隙，間(jian)隙的寬度由工(gong)作電壓、加(jia)工(gong)量(liang)等加(jia)工(gong)條件(jian)(jian)而定(ding)。

2. 電(dian)(dian)(dian)(dian)(dian)(dian)火花(hua)線(xian)切割機(ji)床加工(gong)時，必須(xu)在有(you)一(yi)定(ding)絕緣性(xing)能的(de)液體介質(zhi)中進行，如煤油(you)、皂化油(you)、去離子水(shui)等(deng)，要求教高絕緣性(xing)是為(wei)了(le)利于(yu)產生脈沖性(xing)的(de)火花(hua)放電(dian)(dian)(dian)(dian)(dian)(dian)，液體介質(zhi)還有(you)排除間(jian)(jian)(jian)隙內電(dian)(dian)(dian)(dian)(dian)(dian)蝕產物和冷卻電(dian)(dian)(dian)(dian)(dian)(dian)極(ji)作(zuo)用。鉬絲和工(gong)件被(bei)加工(gong)表面(mian)之間(jian)(jian)(jian)保持一(yi)定(ding)間(jian)(jian)(jian)隙，如果間(jian)(jian)(jian)隙過(guo)大，極(ji)間(jian)(jian)(jian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)不能擊(ji)穿極(ji)間(jian)(jian)(jian)介質(zhi)，則不能產生電(dian)(dian)(dian)(dian)(dian)(dian)火花(hua)放電(dian)(dian)(dian)(dian)(dian)(dian)；如果間(jian)(jian)(jian)隙過(guo)小(xiao)，則容易形成(cheng)短(duan)路連接，也不能產生電(dian)(dian)(dian)(dian)(dian)(dian)火花(hua)放電(dian)(dian)(dian)(dian)(dian)(dian)。

3. 必須采用脈(mo)(mo)(mo)沖(chong)電(dian)源，即(ji)火花放電(dian)必須是脈(mo)(mo)(mo)沖(chong)性(xing)、間(jian)歇性(xing)，脈(mo)(mo)(mo)沖(chong)寬度、to為脈(mo)(mo)(mo)沖(chong)間(jian)隔、tp為脈(mo)(mo)(mo)沖(chong)周期。在脈(mo)(mo)(mo)沖(chong)間(jian)隔內，使(shi)間(jian)隙介質(zhi)消除電(dian)離(li)，使(shi)下(xia)一(yi)個脈(mo)(mo)(mo)沖(chong)能(neng)在兩(liang)極間(jian)擊穿(chuan)放電(dian)。

線(xian)切割加工是一件講究(jiu)精度的(de)活。工件的(de)切割質量(liang)好不好將(jiang)會直接影(ying)響到整個線(xian)切割加工過程。