電機軸鍛(duan)件(jian)的(de)加工(gong)(gong)方法。其(qi)可(ke)以最大(da)程度的(de)減少鍛(duan)造火(huo)次,有效 的(de)壓實(shi)鋼錠內部的(de)缺陷,工(gong)(gong)件(jian)的(de)合格率較高。根(gen)據(ju)鍛(duan)件(jian)成(cheng)型(xing)后(hou)最大(da)截(jie)面尺(chi)(chi)寸(cun)D 選(xuan)(xuan)擇砧寬W0,砧寬W0、鍛(duan)件(jian)成(cheng)型(xing)后(hou)最大(da)截(jie)面直(zhi)(zhi)(zhi)徑(jing)(jing)D、所需(xu)最小(xiao)(xiao)拔(ba)(ba)長(chang)(chang)直(zhi)(zhi)(zhi)徑(jing)(jing)D0之間 需(xu)滿足下列關系：砧寬W0＝(0.77～1.0)D,最小(xiao)(xiao)拔(ba)(ba)長(chang)(chang)直(zhi)(zhi)(zhi)徑(jing)(jing)D0＝1.5D×D/W0, 其(qi)特征在(zai)于(yu)：根(gen)據(ju)鍛(duan)件(jian)成(cheng)型(xing)后(hou)尺(chi)(chi)寸(cun)計算其(qi)重(zhong)(zhong)量(liang),根(gen)據(ju)該重(zhong)(zhong)量(liang)選(xuan)(xuan)用庫(ku)存重(zhong)(zhong)量(liang)相匹 配的(de)坯(pi)(pi)料(liao),如(ru)果坯(pi)(pi)料(liao)的(de)直(zhi)(zhi)(zhi)徑(jing)(jing)大(da)于(yu)最小(xiao)(xiao)拔(ba)(ba)長(chang)(chang)直(zhi)(zhi)(zhi)徑(jing)(jing)D0,根(gen)據(ju)每趟(tang)(tang)拔(ba)(ba)長(chang)(chang)壓下量(liang)在(zai) 20％-30％之間確定(ding)拔(ba)(ba)長(chang)(chang)趟(tang)(tang)數和(he)成(cheng)型(xing)火(huo)次,然后(hou)進(jin)行(xing)(xing)(xing)翻轉(zhuan)、拔(ba)(ba)長(chang)(chang)工(gong)(gong)序,以達(da)到(dao)所需(xu) 尺(chi)(chi)寸(cun),拔(ba)(ba)長(chang)(chang)趟(tang)(tang)數和(he)成(cheng)型(xing)火(huo)次要盡可(ke)能(neng)少；如(ru)果坯(pi)(pi)料(liao)的(de)直(zhi)(zhi)(zhi)徑(jing)(jing)小(xiao)(xiao)于(yu)最小(xiao)(xiao)拔(ba)(ba)長(chang)(chang)直(zhi)(zhi)(zhi)徑(jing)(jing)D0, 則拔(ba)(ba)長(chang)(chang)前先(xian)對坯(pi)(pi)料(liao)進(jin)行(xing)(xing)(xing)墩(dun)粗,以使(shi)坯(pi)(pi)料(liao)達(da)到(dao)最小(xiao)(xiao)拔(ba)(ba)長(chang)(chang)直(zhi)(zhi)(zhi)徑(jing)(jing),然后(hou)進(jin)行(xing)(xing)(xing)拔(ba)(ba)長(chang)(chang)、壓 實(shi)工(gong)(gong)序,以達(da)到(dao)所需(xu)尺(chi)(chi)寸(cun)；最后(hou)進(jin)行(xing)(xing)(xing)滾圓、修整(zheng)成(cheng)型(xing),熱割余料(liao)和(he)鉗把。