輝縣市金鑲玉石墨模具制品有限公司小編輯介紹給您介紹石墨模具加工工藝的主要部分，讓我們來看看詳細內容吧!

1.硬質合金模具制造：

采用(yong)(yong)硬(ying)質合金作負模可(ke)以大大提高模具(ju)的(de)使用(yong)(yong)壽命，但由(you)于(yu)硬(ying)質合金加工(gong)(gong)性差，通常(chang)直接加工(gong)(gong)成負模，留下一定(ding)的(de)加工(gong)(gong)余(yu)量(liang)，然后進入(ru)磨(mo)削(xue)。電氣處理(li)。金剛石砂(sha)(sha)輪(lun)(lun)(lun)通常(chang)用(yong)(yong)于(yu)磨(mo)削(xue)碳(tan)化物。普(pu)通磨(mo)床使用(yong)(yong)金剛石砂(sha)(sha)輪(lun)(lun)(lun)時，砂(sha)(sha)輪(lun)(lun)(lun)的(de)旋(xuan)轉應(ying)是穩定(ding)的(de)。安裝砂(sha)(sha)輪(lun)(lun)(lun)錐度的(de)徑向(xiang)跳動不得(de)超過0.00毫(hao)米(mi)。當發現砂(sha)(sha)輪(lun)(lun)(lun)變形時，應(ying)立即(ji)對砂(sha)(sha)輪(lun)(lun)(lun)進行修整。砂(sha)(sha)輪(lun)(lun)(lun)進給量(liang)不太大，通常(chang)為(wei)0.02≤0.03mM，砂(sha)(sha)輪(lun)(lun)(lun)轉速應(ying)在15~25m/s之間(根(gen)據砂(sha)(sha)輪(lun)(lun)(lun)直徑，可(ke)據此計算轉數(shu))。

2.電火花加工制造：

主(zhu)要用(yong)于加(jia)工(gong)(gong)(gong)石墨模(mo)異形型(xing)腔孔，特別是沿軸向梯(ti)形型(xing)腔的電(dian)火(huo)(huo)花(hua)線(xian)切割(ge)加(jia)工(gong)(gong)(gong)，只(zhi)能用(yong)電(dian)火(huo)(huo)花(hua)線(xian)切割(ge)加(jia)工(gong)(gong)(gong)，也可加(jia)工(gong)(gong)(gong)芯軸和(he)上下模(mo)沖(chong)孔端腔。

加工(gong)(gong)原理：金(jin)屬電(dian)(dian)(dian)火(huo)花加工(gong)(gong)的(de)(de)(de)原理是基(ji)于工(gong)(gong)件(jian)(jian)與電(dian)(dian)(dian)極(ji)之間(jian)(jian)脈沖放(fang)電(dian)(dian)(dian)的(de)(de)(de)電(dian)(dian)(dian)腐(fu)(fu)蝕現象。加工(gong)(gong)后(hou)的(de)(de)(de)負極(ji)模(mo)連接(jie)到(dao)電(dian)(dian)(dian)源(yuan)的(de)(de)(de)正極(ji)上，加工(gong)(gong)電(dian)(dian)(dian)極(ji)連接(jie)到(dao)電(dian)(dian)(dian)源(yuan)的(de)(de)(de)負極(ji)上。電(dian)(dian)(dian)氣化(hua)后(hou)，電(dian)(dian)(dian)容器充電(dian)(dian)(dian)。當兩極(ji)逐漸接(jie)近一(yi)定(ding)距離時(shi)，兩極(ji)之間(jian)(jian)的(de)(de)(de)介質(礦物(wu)油)就會受到(dao)撞擊(ji)。通過電(dian)(dian)(dian)容器，儲存在電(dian)(dian)(dian)容器中的(de)(de)(de)能量(liang)(liang)在很(hen)短(duan)的(de)(de)(de)時(shi)間(jian)(jian)內釋放(fang)出來(lai)，在火(huo)花通道中瞬間(jian)(jian)產生(sheng)大量(liang)(liang)熱能，使工(gong)(gong)件(jian)(jian)表面的(de)(de)(de)金(jin)屬被(bei)部分熔化(hua)和氣化(hua)腐(fu)(fu)蝕，公(gong)園不(bu)斷產生(sheng)，金(jin)屬不(bu)斷被(bei)腐(fu)(fu)蝕。一(yi)般(ban)來(lai)說，金(jin)屬作為正極(ji)的(de)(de)(de)腐(fu)(fu)蝕速(su)度快于負極(ji)的(de)(de)(de)腐(fu)(fu)蝕速(su)度，因(yin)此負極(ji)模(mo)不(bu)斷被(bei)腐(fu)(fu)蝕，其空洞*終與電(dian)(dian)(dian)極(ji)的(de)(de)(de)形狀(zhuang)相似(si)。

3.磨削加工：

工(gong)件的表面磨削和內外磨削必須用高速旋轉(zhuan)砂(sha)輪(lun)完成。

4、線切割操作：

在粉末冶金石墨模(mo)具(ju)加工(gong)(gong)(gong)中，數控線切(qie)割機主要用于加工(gong)(gong)(gong)負模(mo)腔、模(mo)內孔(kong)或芯棒外表面(mian)及(ji)模(mo)具(ju)沖(chong)壓，熱(re)處理后(hou)可加工(gong)(gong)(gong)鋼和硬(ying)質合金，加工(gong)(gong)(gong)后(hou)的表面(mian)粗糙度為0.02，加工(gong)(gong)(gong)精度一般為0.002。

工作原理：線(xian)(xian)切(qie)(qie)割(ge)是利用(yong)線(xian)(xian)切(qie)(qie)割(ge)電(dian)極(ji)、計算技術和電(dian)火花加(jia)工技術實現各種復(fu)雜形狀的(de)(de)(de)(de)模具(ju)加(jia)工。用(yong)一根(gen)很(hen)細的(de)(de)(de)(de)線(xian)(xian)材(直(zhi)徑為0.05-0.3)作為線(xian)(xian)切(qie)(qie)割(ge)的(de)(de)(de)(de)工作電(dian)極(ji)。導線(xian)(xian)安裝在高(gao)速旋轉的(de)(de)(de)(de)絲綢容器上，以大約每秒10米的(de)(de)(de)(de)線(xian)(xian)速度在絲綢機架(jia)上來回移動。該導線(xian)(xian)連接(jie)(jie)到(dao)(dao)高(gao)頻電(dian)源的(de)(de)(de)(de)負極(ji)上。切(qie)(qie)削工件與(yu)正(zheng)極(ji)連接(jie)(jie)，煤油或(huo)乳化液作為工作介質。當電(dian)極(ji)接(jie)(jie)觸金屬時，會發生腐蝕。如果電(dian)極(ji)向指定的(de)(de)(de)(de)方(fang)向移動，且移動速度與(yu)工件之間導線(xian)(xian)的(de)(de)(de)(de)腐蝕速率相適應(ying)(即(ji)，沒(mei)有短(duan)路到(dao)(dao)0)，則可達到(dao)(dao)切(qie)(qie)割(ge)目的(de)(de)(de)(de)。