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緩(huan)沖器鍛件的鍛造成型(xing)工(gong)藝分析

文章來源:sjzwx 更新(xin)時(shi)間(jian):2015-02-05 09:47:02

    緩(huan)沖器鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)如圖(tu)1所示,包括中心(xin)楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)、楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai),外固定(ding)(ding)板(ban)、固定(ding)(ding)斜(xie)(xie)(xie)板(ban)和(he)(he)動(dong)板(ban),其(qi)(qi)中動(dong)板(ban)為(wei)自由鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),機加(jia)工(gong)(gong)而成(cheng)(cheng),其(qi)(qi)余4種(zhong)皆為(wei)模鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),不(bu)允許加(jia)工(gong)(gong)(中心(xin)楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)裝(zhuang)配面(mian)(mian)(mian)有(you)(you)少量加(jia)工(gong)(gong))。中心(xin)楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)和(he)(he)動(dong)板(ban)的(de)(de)材料為(wei)20CrMnMo,楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)、外固定(ding)(ding)板(ban)和(he)(he)固定(ding)(ding)斜(xie)(xie)(xie)板(ban)材料為(wei)40CrMnMo或(huo)42CrMo。模鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)平(ping)(ping)面(mian)(mian)(mian)度0.2~0.25inin,厚度公差1mm左右,硬度公差HRC3(內(nei)控),屬于超高精密度鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)。在(zai)緩(huan)沖器鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian)中外固定(ding)(ding)板(ban)和(he)(he)固定(ding)(ding)斜(xie)(xie)(xie)板(ban)屬于平(ping)(ping)板(ban)類(lei)零件(jian)(jian)(jian),形狀規(gui)整,較易成(cheng)(cheng)型;楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)的(de)(de)各部(bu)分截面(mian)(mian)(mian)變(bian)化比(bi)較大(da),底(di)面(mian)(mian)(mian)開有(you)(you)鑲銅(tong)條的(de)(de)凹槽,增加(jia)了成(cheng)(cheng)型難度;中心(xin)楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)屬于又(you)口類(lei)鍛(duan)(duan)(duan)(duan)件(jian)(jian)(jian),底(di)部(bu)相對(dui)于前部(bu)叉口的(de)(de)截面(mian)(mian)(mian)尺寸(cun)變(bian)化相當大(da),不(bu)易成(cheng)(cheng)型。其(qi)(qi)中楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)和(he)(he)中心(xin)楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)的(de)(de)鍛(duan)(duan)(duan)(duan)造(zao)工(gong)(gong)藝需要進(jin)行試(shi)驗和(he)(he)優選。為(wei)縮(suo)短試(shi)制(zhi)周期(qi),降低(di)試(shi)制(zhi)成(cheng)(cheng)本,采用(yong)DE—FORM3D軟件(jian)(jian)(jian)對(dui)楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)和(he)(he)中心(xin)楔(xie)(xie)(xie)塊(kuai)(kuai)(kuai)(kuai)進(jin)行鍛(duan)(duan)(duan)(duan)造(zao)成(cheng)(cheng)型的(de)(de)計算機模擬。

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