石墨分成不一樣的級別，在特殊的程序運行下應用適度級別的石墨和電電暈放電主要參數才可以超過理想化的生產加工實際效果，若在應用石墨電級的火花機上實際操作工作人員應用與銅電級同樣的主要參數，那麼結果毫無疑問是讓人心寒的。假如要嚴控電級的原材料，可將石墨電級在初加工時設在非耗損情況（耗損低于1%）但銅電級則不應用。

    1、磨具幾何圖(tu)形(xing)(xing)樣(yang)子的(de)日漸(jian)復(fu)雜及其商品(pin)運(yun)用的(de)多(duo)樣(yang)化造成(cheng)(cheng)對火花(hua)機(ji)的(de)充放電(dian)精準度規定愈來愈高(gao)。石(shi)墨電(dian)級(ji)的(de)優勢是生(sheng)產(chan)(chan)加(jia)工(gong)較(jiao)*容易，充放電(dian)生(sheng)產(chan)(chan)加(jia)工(gong)污泥負(fu)荷高(gao)，石(shi)墨耗損小，因而，一部分(fen)群基火花(hua)機(ji)顧(gu)客舍棄了銅(tong)電(dian)級(ji)而改成(cheng)(cheng)石(shi)墨電(dian)級(ji)。此外(wai)，一些獨特樣(yang)子的(de)電(dian)級(ji)沒法(fa)用銅(tong)生(sheng)產(chan)(chan)制造，但石(shi)墨則較(jiao)*容易成(cheng)(cheng)形(xing)(xing)，并(bing)且銅(tong)電(dian)級(ji)偏重，不宜生(sheng)產(chan)(chan)加(jia)工(gong)大電(dian)級(ji)，這種(zhong)要素(su)都導致(zhi)一部分(fen)群基火花(hua)機(ji)顧(gu)客運(yun)用石(shi)墨電(dian)級(ji)。

    2、石墨電(dian)級(ji)(ji)較(jiao)*容易生(sheng)(sheng)產(chan)(chan)(chan)(chan)加(jia)(jia)工(gong)(gong)(gong)，且生(sheng)(sheng)產(chan)(chan)(chan)(chan)加(jia)(jia)工(gong)(gong)(gong)速(su)(su)率(lv)顯(xian)著遠大于銅(tong)電(dian)級(ji)(ji)。例如選(xuan)(xuan)用(yong)(yong)切削加(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)藝生(sheng)(sheng)產(chan)(chan)(chan)(chan)加(jia)(jia)工(gong)(gong)(gong)石(shi)(shi)(shi)墨(mo)(mo)，其生(sheng)(sheng)產(chan)(chan)(chan)(chan)加(jia)(jia)工(gong)(gong)(gong)速(su)(su)率(lv)較(jiao)其他金屬材質的(de)(de)(de)激光(guang)切割加(jia)(jia)工(gong)(gong)(gong)快2～3倍且不用(yong)(yong)附(fu)加(jia)(jia)的(de)(de)(de)人工(gong)(gong)(gong)服務(wu)解決(jue)，而銅(tong)電(dian)級(ji)(ji)則必(bi)須每人必(bi)備挫磨。一樣(yang)，假如選(xuan)(xuan)用(yong)(yong)髙速(su)(su)石(shi)(shi)(shi)墨(mo)(mo)數(shu)控加(jia)(jia)工(gong)(gong)(gong)中心生(sheng)(sheng)產(chan)(chan)(chan)(chan)制造電(dian)級(ji)(ji)，速(su)(su)率(lv)會迅速(su)(su)，高效率(lv)也更高，還不容易造成(cheng)煙(yan)塵難題(ti)。在(zai)(zai)這種生(sheng)(sheng)產(chan)(chan)(chan)(chan)過程中，挑選(xuan)(xuan)強度(du)適合的(de)(de)(de)專用(yong)(yong)工(gong)(gong)(gong)具和石(shi)(shi)(shi)墨(mo)(mo)可降低數(shu)控刀片的(de)(de)(de)磨耗(hao)損和銅(tong)公(gong)的(de)(de)(de)損壞(huai)。假如實(shi)際較(jiao)為(wei)石(shi)(shi)(shi)墨(mo)(mo)電(dian)級(ji)(ji)與銅(tong)電(dian)級(ji)(ji)石(shi)(shi)(shi)墨(mo)(mo)電(dian)級(ji)(ji)的(de)(de)(de)切削時間，石(shi)(shi)(shi)墨(mo)(mo)較(jiao)銅(tong)電(dian)級(ji)(ji)快67%，在(zai)(zai)一般狀況(kuang)下的(de)(de)(de)充放電(dian)生(sheng)(sheng)產(chan)(chan)(chan)(chan)加(jia)(jia)工(gong)(gong)(gong)中，選(xuan)(xuan)用(yong)(yong)石(shi)(shi)(shi)墨(mo)(mo)電(dian)級(ji)(ji)的(de)(de)(de)生(sheng)(sheng)產(chan)(chan)(chan)(chan)加(jia)(jia)工(gong)(gong)(gong)要(yao)比選(xuan)(xuan)用(yong)(yong)銅(tong)電(dian)級(ji)(ji)快58%。這樣(yang)一來(lai)，生(sheng)(sheng)產(chan)(chan)(chan)(chan)加(jia)(jia)工(gong)(gong)(gong)時間大幅度(du)降低，另外也降低了生(sheng)(sheng)產(chan)(chan)(chan)(chan)制造成(cheng)本費。

    3、石(shi)墨電級與傳統式銅電級的(de)設計方案(an)不一(yi)樣。很多模(mo)具制造廠一(yi)般在銅電級的(de)初(chu)加(jia)工(gong)和(he)(he)深度加(jia)工(gong)有不一(yi)樣的(de)預(yu)埋(mai)量(liang)，而石(shi)墨電級則應用基本(ben)上同(tong)樣的(de)預(yu)埋(mai)量(liang)，這(zhe)降(jiang)低(di)了CAD/CAM和(he)(he)設備生產加(jia)工(gong)的(de)頻次，單是這(zhe)一(yi)緣故，就得以在挺大水平上提升磨具凹模(mo)的(de)精(jing)密度。