詳細描述

鈦葉輪是(shi)一種(zhong)由復雜曲(qu)面構(gou)成的機(ji)(ji)械(xie)零件，是(shi)對小型燃氣輪發動(dong)(dong)機(ji)(ji)等動(dong)(dong)力機(ji)(ji)械(xie)性能影響最大的核心部件。通(tong)常(chang)小型燃氣輪發動(dong)(dong)機(ji)(ji)葉輪為(wei)整體葉輪，其(qi)葉片的形狀(zhuang)是(shi)機(ji)(ji)械(xie)加工中(zhong)最難成型的曲(qu)面，因此其(qi)加工一直(zhi)是(shi)困擾工程技術人員的難題。

隨著(zhu)人們對葉輪(lun)(lun)在(zai)流體(ti)中受力的(de)(de)研究，鈦合金葉輪(lun)(lun)的(de)(de)葉片也從(cong)開始的(de)(de)徑向直葉片發展(zhan)為(wei)帶有后彎和前傾的(de)(de)扭曲(qu)葉片。再加(jia)(jia)上(shang)新型葉輪(lun)(lun)的(de)(de)葉片長而(er)薄，從(cong)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)藝(yi)角度來(lai)看(kan)，為(wei)機械加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)提出(chu)了更(geng)具挑戰性(xing)的(de)(de)難點。為(wei)了能夠精(jing)確(que)地加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)出(chu)形狀復雜的(de)(de)葉輪(lun)(lun)，現(xian)在(zai)廣泛(fan)采用高性(xing)能四五軸(zhou)聯動的(de)(de)數控(kong)機床來(lai)完成葉輪(lun)(lun)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。然而(er)高性(xing)能四五軸(zhou)聯動的(de)(de)數控(kong)機床一(yi)般都是從(cong)國外引進，價格昂貴，其(qi)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)費用較(jiao)高。另外整(zheng)體(ti)葉輪(lun)(lun)的(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)一(yi)般周(zhou)期長、效率低，往(wang)往(wang)造成其(qi)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)成本很高。