一、火花機是干什么用的
火花機,又(you)稱(cheng)電(dian)(dian)火花(hua)(hua)機(ji)(ji),是利用(yong)(yong)浸在(zai)工(gong)(gong)作(zuo)液中(zhong)的兩極(ji)間脈沖放電(dian)(dian)時產生(sheng)的電(dian)(dian)蝕(shi)作(zuo)用(yong)(yong)蝕(shi)除導電(dian)(dian)材料的特(te)種加工(gong)(gong)方法,又(you)稱(cheng)放電(dian)(dian)加工(gong)(gong)或(huo)電(dian)(dian)蝕(shi)加工(gong)(gong),英文簡稱(cheng)EDM。火花(hua)(hua)機(ji)(ji)是一種機(ji)(ji)械加工(gong)(gong)設(she)(she)備(bei)(bei),主(zhu)要用(yong)(yong)于(yu)電(dian)(dian)火花(hua)(hua)機(ji)(ji)加工(gong)(gong),廣泛應用(yong)(yong)在(zai)各種金屬模具、機(ji)(ji)械設(she)(she)備(bei)(bei)的制造中(zhong)。
二、火花機的作用與用途
火(huo)花(hua)機(ji)的(de)(de)主要(yao)作用(yong)是利用(yong)火(huo)花(hua)放電時(shi)產生的(de)(de)電蝕作用(yong)蝕除導電材料(liao),從而實現對(dui)各種導電材料(liao)的(de)(de)加(jia)工(gong),如(ru)硬質(zhi)合金(jin)和淬火(huo)鋼(gang)等(deng)。它能(neng)夠加(jia)工(gong)出具有復雜形狀的(de)(de)型孔(kong)(kong)和型腔的(de)(de)模具和零(ling)件,同(tong)時(shi)也可以加(jia)工(gong)深細孔(kong)(kong)、異形孔(kong)(kong)、深槽、窄縫和切割薄(bo)片等(deng)。此外,火(huo)花(hua)機(ji)還能(neng)夠加(jia)工(gong)各種成形刀具、樣板和螺(luo)紋環規等(deng)工(gong)具。火(huo)花(hua)機(ji)的(de)(de)應用(yong)范圍非常廣泛,包括五金(jin)廠(chang)、模具廠(chang)、電子廠(chang)、軍(jun)工(gong)、汽(qi)車模具廠(chang)、塑(su)膠金(jin)屬等(deng)。
電火(huo)花加(jia)工(gong)(gong)可以(yi)加(jia)工(gong)(gong)高硬(ying)度(du)、高韌性、高強度(du)的模具材(cai)料,不(bu)(bu)同的工(gong)(gong)件材(cai)料還(huan)(huan)有不(bu)(bu)同機(ji)型的火(huo)花機(ji)適(shi)配加(jia)工(gong)(gong)。電火(huo)花加(jia)工(gong)(gong)還(huan)(huan)可以(yi)加(jia)工(gong)(gong)高溫合金等難加(jia)工(gong)(gong)材(cai)料,主要應用在航空航天(tian)領域。
精度高的火花機還可以加工高精度、高表面質量的零部件,包括如螺紋、渦輪等復雜曲面、復雜型腔的加工。在汽車制造領域中,主要用于生產復雜的汽車零件和用于加工塑料件、鑄件、鍛件或沖壓件所使用的模具,也可以使用高精度的鏡面火花機。火花機對(dui)精(jing)小電(dian)子元件(jian)以及醫(yi)療(liao)器械的制(zhi)造也能夠保證(zheng)最小誤差的高精(jing)密加(jia)工。