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鍛造過(guo)程中(zhong)輔具的設計

文章來源：sjzwx 更新時(shi)間：2014-11-25 09:11:36

    圈鍛件形(xing)狀(zhuang)尺(chi)(chi)寸介于筒類件和(he)圈類件之(zhi)間，因而(er)用(yong)傳統方法進(jin)(jin)行(xing)平砧(zhen)鍛(duan)(duan)造(zao)，不僅不能(neng)滿足變(bian)形(xing)量，而(er)且容易造(zao)成尺(chi)(chi)寸不均現(xian)象。故要求對該(gai)件的生(sheng)產進(jin)(jin)行(xing)工(gong)藝(yi)創(chuang)新。該(gai)大型(xing)齒圈成形(xing)的工(gong)藝(yi)過(guo)程(cheng)(cheng)(cheng)，關鍵是要確定(ding)每道工(gong)序(xu)的工(gong)藝(yi)參數。各工(gong)序(xu)尺(chi)(chi)寸必須相互(hu)匹配，否(fou)則(ze)將會出現(xian)鍛(duan)(duan)造(zao)過(guo)程(cheng)(cheng)(cheng)長(chang)、坯料(liao)燒損(sun)嚴(yan)重、料(liao)不夠(gou)用(yong)等現(xian)象。尤其是控制“擴孔”工(gong)序(xu)變(bian)形(xing)量，避免因長(chang)度尺(chi)(chi)寸大、材(cai)料(liao)分布不均，導(dao)致外圓、內孔不夠(gou)加工(gong)。對縱向砧(zhen)進(jin)(jin)行(xing)改造(zao)設計：將原有縱向砧(zhen)的長(chang)度尺(chi)(chi)寸由(you)3．8m改制成2．7m，避免了鍛(duan)(duan)造(zao)過(guo)程(cheng)(cheng)(cheng)中縱向砧(zhen)與操作鉗發生(sheng)干涉，從(cong)而(er)能(neng)夠(gou)進(jin)(jin)行(xing)極限擴孔。