電(dian)火花(hua)的加(jia)(jia)(jia)工(gong)方式與(yu)其他(ta)相比來說較為特殊，它能(neng)夠用于(yu)三角形孔(kong)以(yi)及多(duo)孔(kong)的材(cai)料(liao)，尤其是一些鋼制(zhi)等硬性材(cai)料(liao)，所以(yi)在加(jia)(jia)(jia)工(gong)行業中(zhong)電(dian)火花(hua)占據的位置很重要，目(mu)前有許多(duo)電(dian)火花(hua)機床制(zhi)造商，技術含(han)量高、成本(ben)低，難以(yi)保證(zheng)產(chan)品質(zhi)量，在電(dian)火花(hua)機床的加(jia)(jia)(jia)工(gong)中(zhong)，要對(dui)零件進行更(geng)加(jia)(jia)(jia)規則、光滑的加(jia)(jia)(jia)工(gong)，如何判斷放(fang)電(dian)狀態？

 1.放(fang)電(dian)(dian)加工機(ji)是由許(xu)多(duo)單脈(mo)沖(chong)(chong)放(fang)電(dian)(dian)過程微觀結構(gou)。包(bao)括北極和南極，一擊穿之間(jian)的(de)(de)電(dian)(dian)離(li)(li)介質正常(chang)的(de)(de)單脈(mo)沖(chong)(chong)放(fang)電(dian)(dian)過程中，形成放(fang)電(dian)(dian)通道(dao)，在工作流體氣化(hua)的(de)(de)排出(chu)通道(dao)中的(de)(de)瞬時(shi)溫度，開(kai)裂(lie)，金屬(shu)材料被熔化(hua)，蒸發，高壓使得瞬時(shi)加工屑被扔進(jin)的(de)(de)工作流體，由于脈(mo)沖(chong)(chong)放(fang)電(dian)(dian)完成時(shi)，磁極之間(jian)去(qu)離(li)(li)子介質，恢復(fu)過程雜波絕緣。的(de)(de)稱(cheng)為EDM的(de)(de)放(fang)電(dian)(dian)條(tiao)件(jian)中的(de)(de)每個(ge)放(fang)電(dian)(dian)脈(mo)沖(chong)(chong)放(fang)電(dian)(dian)間(jian)隙基本(ben)狀態(tai)。

 2.因(yin)為電(dian)(dian)(dian)火(huo)(huo)花(hua)的(de)放(fang)電(dian)(dian)(dian)狀態是否(fou)穩定(ding)(ding)(ding)與加(jia)工(gong)(gong)質(zhi)量(liang)緊密相(xiang)關，也是決定(ding)(ding)(ding)加(jia)工(gong)(gong)效果的(de)途(tu)徑之一(yi)，因(yin)此，電(dian)(dian)(dian)火(huo)(huo)花(hua)加(jia)工(gong)(gong)一(yi)直是工(gong)(gong)程技術人員(yuan)關注(zhu)的(de)問(wen)題如何(he)實現(xian)(xian)安全穩定(ding)(ding)(ding)的(de)電(dian)(dian)(dian)火(huo)(huo)花(hua)加(jia)工(gong)(gong)，也是當時電(dian)(dian)(dian)火(huo)(huo)花(hua)加(jia)工(gong)(gong)領域的(de)一(yi)個(ge)熱點問(wen)題本文(wen)從多(duo)年的(de)電(dian)(dian)(dian)火(huo)(huo)花(hua)加(jia)工(gong)(gong)經驗出(chu)發，探(tan)討了電(dian)(dian)(dian)火(huo)(huo)花(hua)加(jia)工(gong)(gong)中(zhong)的(de)不(bu)穩定(ding)(ding)(ding)放(fang)電(dian)(dian)(dian)現(xian)(xian)象，分析了產生不(bu)穩定(ding)(ding)(ding)放(fang)電(dian)(dian)(dian)的(de)原(yuan)因(yin)，并提出(chu)了改進措施。