線(xian)(xian)切割(ge)廠(chang)家標志著沖(chong)(chong)壓模先(xian)進(jin)水平的是(shi)高精(jing)(jing)度(du)(du)(du)(du)、長(chang)壽命(ming)、多工位級(ji)進(jin)模，它具(ju)有結構(gou)復雜、制(zhi)造難度(du)(du)(du)(du)大、精(jing)(jing)度(du)(du)(du)(du)高、壽命(ming)長(chang)、生(sheng)產效率高和低耗材耗能的特點(dian)，是(shi)我國重點(dian)發展的精(jing)(jing)密(mi)模具(ju)品種(zhong)之(zhi)一，線(xian)(xian)切割(ge)廠(chang)家體現(xian)高難度(du)(du)(du)(du)成形的彩管(guan)電子槍零件(jian)25工位硬質(zhi)合金級(ji)進(jin)模，精(jing)(jing)度(du)(du)(du)(du)達2μm，模具(ju)在(zai)高速沖(chong)(chong)床上(shang)應用，沖(chong)(chong)制(zhi)0.245mm厚的無磁不銹鋼，經各道工序后，制(zhi)品精(jing)(jing)度(du)(du)(du)(du)達±5μm，模具(ju)壽命(ming)3千萬(wan)次以上(shang)。

線切(qie)割(ge)(ge)廠(chang)(chang)家(jia)(jia)彩管電子槍零件級(ji)進(jin)模(mo)，精(jing)(jing)度為2μm，步距(ju)精(jing)(jing)度3μm，模(mo)具壽(shou)命(ming)5千(qian)萬(wan)次(ci)以上(shang)。同樣模(mo)具壽(shou)命(ming)有(you)差(cha)距(ju)。一(yi)般狀(zhuang)況下(xia)，凸(tu)模(mo)外(wai)形(xing)(xing)規矩(ju)時，線切(qie)割(ge)(ge)廠(chang)(chang)家(jia)(jia)加(jia)工(gong)(gong)常將預留(liu)銜(xian)接(jie)，即(ji)為使工(gong)(gong)件在(zai)(zai)第1次(ci)的(de)(de)粗割(ge)(ge)后不與(yu)毛坯徹底別離而預留(liu)下(xia)的(de)(de)一(yi)小段切(qie)開(kai)軌跡線，留(liu)在(zai)(zai)平(ping)面方位上(shang)，大(da)有(you)些(xie)精(jing)(jing)割(ge)(ge)結束后，線切(qie)割(ge)(ge)廠(chang)(chang)家(jia)(jia)對預留(liu)銜(xian)接(jie)有(you)些(xie)只(zhi)做一(yi)次(ci)切(qie)開(kai)，今(jin)后再由鉗工(gong)(gong)修磨(mo)平(ping)坦，這(zhe)樣可削減凸(tu)模(mo)在(zai)(zai)中走(zou)絲線切(qie)割(ge)(ge)上(shang)的(de)(de)加(jia)工(gong)(gong)費用。硬質合金凸(tu)模(mo)因為資料硬度高及形(xing)(xing)狀(zhuang)細(xi)長等特(te)色，致(zhi)使線切(qie)割(ge)(ge)廠(chang)(chang)家(jia)(jia)速度慢且簡(jian)單(dan)變形(xing)(xing)，格外(wai)在(zai)(zai)其形(xing)(xing)狀(zhuang)不規矩(ju)的(de)(de)狀(zhuang)況下(xia)，預留(liu)銜(xian)接(jie)有(you)些(xie)的(de)(de)修磨(mo)給鉗工(gong)(gong)帶來很大(da)的(de)(de)難度。

線(xian)切(qie)割(ge)廠家加(jia)(jia)工(gong)(gong)(gong)期(qi)間可(ke)對(dui)技術進行(xing)(xing)恰當的(de)調整，使(shi)(shi)外(wai)形(xing)尺度(du)精度(du)到(dao)達(da)需求，革除鉗工(gong)(gong)(gong)安裝前對(dui)暫停點(dian)的(de)修磨工(gong)(gong)(gong)序切(qie)開(kai)厚度(du)大(da)，致(zhi)使(shi)(shi)加(jia)(jia)工(gong)(gong)(gong)速度(du)慢，改變(bian)變(bian)形(xing)嚴峻(jun)，大(da)有(you)些外(wai)形(xing)加(jia)(jia)工(gong)(gong)(gong)及(ji)預留(liu)銜接有(you)些加(jia)(jia)工(gong)(gong)(gong)均采納(na)4次切(qie)開(kai)方法(fa)且兩有(you)些的(de)切(qie)開(kai)參(can)數和偏移量均共(gong)同。線(xian)切(qie)割(ge)廠家以使(shi)(shi)工(gong)(gong)(gong)件充沛(pei)開(kai)釋內應(ying)(ying)力及(ji)徹底改變(bian)變(bian)形(xing)，在后邊3次可(ke)以有(you)滿足余量進行(xing)(xing)精割(ge)加(jia)(jia)工(gong)(gong)(gong)，這樣可(ke)使(shi)(shi)工(gong)(gong)(gong)件zui終尺度(du)得到(dao)確保(bao)。在線(xian)切(qie)開(kai)加(jia)(jia)工(gong)(gong)(gong)前，線(xian)切(qie)割(ge)廠家已(yi)進行(xing)(xing)了冷(leng)加(jia)(jia)工(gong)(gong)(gong)、熱加(jia)(jia)工(gong)(gong)(gong)，內部已(yi)發生了較(jiao)大(da)的(de)殘(can)留(liu)應(ying)(ying)力，而(er)殘(can)留(liu)應(ying)(ying)力是一個相(xiang)對(dui)平衡的(de)應(ying)(ying)力體系(xi)，在線(xian)切(qie)開(kai)去掉很多廢料時，應(ying)(ying)力跟著平衡遭到(dao)損壞而(er)開(kai)釋出來。

模板在線切(qie)(qie)割(ge)(ge)廠(chang)家(jia)加(jia)工(gong)(gong)時(shi)，跟著原有內應(ying)(ying)力的(de)效果及(ji)火花(hua)放電所發(fa)生(sheng)的(de)加(jia)工(gong)(gong)熱應(ying)(ying)力的(de)影響，將(jiang)發(fa)生(sheng)不(bu)定向、無規矩的(de)變(bian)(bian)形(xing)，使后(hou)邊的(de)切(qie)(qie)開(kai)吃刀(dao)量厚薄不(bu)均，影響了(le)加(jia)工(gong)(gong)質量和加(jia)工(gong)(gong)精度(du)。線切(qie)(qie)割(ge)(ge)廠(chang)家(jia)能(neng)使每個型孔加(jia)工(gong)(gong)后(hou)有滿(man)足的(de)時(shi)刻開(kai)釋(shi)內應(ying)(ying)力，能(neng)將(jiang)各個型孔因加(jia)工(gong)(gong)次(ci)序不(bu)一樣(yang)而發(fa)生(sheng)的(de)相互影響、微量變(bian)(bian)形(xing)下(xia)降到zui小程度(du)，較好地(di)確(que)保模板的(de)加(jia)工(gong)(gong)尺度(du)精度(du)。可是這樣(yang)線切(qie)(qie)割(ge)(ge)廠(chang)家(jia)時(shi)刻太(tai)長(chang)，穿(chuan)絲(si)次(ci)數多(duo)，作業量大，增加(jia)了(le)模板的(de)制形(xing)本錢。別的(de)機(ji)床(chuang)自身隨加(jia)工(gong)(gong)時(shi)刻的(de)延(yan)伸及(ji)溫度(du)的(de)動搖也(ye)會(hui)發(fa)生(sheng)蠕變(bian)(bian)。