【勞動模范】夏天堯——不空談，講實干，用心造好國產裝備

夏天(tian)堯作為重(zhong)慶通(tong)用工業（集團）有限責任公司加工車(che)間(jian)數控車(che)工、高(gao)級技師、質量放(fang)心(xin)員(yuan)工，曾(ceng)先后榮獲(huo)“重(zhong)慶市五(wu)一勞(lao)動獎章”“重(zhong)慶市勞(lao)動模(mo)范”等榮譽。

毫厘之間方顯本色

作(zuo)(zuo)為高(gao)(gao)端裝備(bei)的(de)(de)(de)制造(zao)企(qi)業，產(chan)(chan)(chan)品(pin)(pin)零部(bu)件種類繁多，加(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝要(yao)求(qiu)極(ji)高(gao)(gao)，沒有過硬的(de)(de)(de)技術(shu)根本(ben)無(wu)法(fa)勝任(ren)關鍵零部(bu)件的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)任(ren)務(wu)(wu)。夏天堯主要(yao)從(cong)事大(da)型(xing)(xing)壓縮(suo)(suo)機、船用(yong)、核(he)(he)電等(deng)重點(dian)產(chan)(chan)(chan)品(pin)(pin)的(de)(de)(de)零部(bu)件加(jia)(jia)工(gong)(gong)(gong)(gong)。其中(zhong)大(da)型(xing)(xing)離心(xin)(xin)式壓縮(suo)(suo)機屬(shu)于(yu)國(guo)(guo)家重大(da)裝備(bei)，因其工(gong)(gong)(gong)(gong)藝技術(shu)要(yao)求(qiu)極(ji)高(gao)(gao)，在(zai)全國(guo)(guo)只有少數(shu)幾個單位具有實力生(sheng)產(chan)(chan)(chan)；船用(yong)、核(he)(he)電用(yong)大(da)型(xing)(xing)離心(xin)(xin)式冷(leng)水機組，使(shi)用(yong)工(gong)(gong)(gong)(gong)況復雜，核(he)(he)心(xin)(xin)零部(bu)件加(jia)(jia)工(gong)(gong)(gong)(gong)要(yao)求(qiu)極(ji)為嚴苛。近(jin)年來，他在(zai)承擔這(zhe)些產(chan)(chan)(chan)品(pin)(pin)核(he)(he)心(xin)(xin)零部(bu)件的(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)攻(gong)關任(ren)務(wu)(wu)中(zhong)，從(cong)識圖到(dao)刀具、切(qie)削要(yao)素(su)、加(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)藝路線的(de)(de)(de)選擇，再(zai)到(dao)編制加(jia)(jia)工(gong)(gong)(gong)(gong)程序，歸納總結了(le)一整套具有創(chuang)新性、針對(dui)性、可操作(zuo)(zuo)性的(de)(de)(de)四步加(jia)(jia)工(gong)(gong)(gong)(gong)法(fa)，使(shi)得(de)加(jia)(jia)工(gong)(gong)(gong)(gong)周期縮(suo)(suo)減(jian)20%且(qie)一次(ci)性質量合(he)格(ge)率(lv)100%。

千鈞之壓助力國防

公(gong)司在初次接受到某型產品的(de)(de)加(jia)(jia)(jia)工(gong)(gong)時(shi)，發現其中關鍵(jian)部件是在內孔加(jia)(jia)(jia)工(gong)(gong)M65×36（P1.5）多(duo)(duo)頭(tou)螺(luo)紋(wen)(wen)。公(gong)司由于多(duo)(duo)頭(tou)螺(luo)紋(wen)(wen)的(de)(de)零件加(jia)(jia)(jia)工(gong)(gong)少，最多(duo)(duo)也就2-3頭(tou)螺(luo)紋(wen)(wen)，這(zhe)種24頭(tou)螺(luo)紋(wen)(wen)公(gong)司從來沒(mei)有人做過。夏(xia)天堯了解情況后，主動請纓(ying)，通過對多(duo)(duo)頭(tou)螺(luo)紋(wen)(wen)外協零件圖紙的(de)(de)消化，根據豐(feng)富的(de)(de)加(jia)(jia)(jia)工(gong)(gong)經(jing)驗(yan)(yan)，決定選(xuan)擇(ze)合(he)(he)理(li)的(de)(de)車(che)削參數，用自(zi)制修磨的(de)(de)螺(luo)紋(wen)(wen)車(che)刀，選(xuan)擇(ze)合(he)(he)理(li)的(de)(de)前角、后角和副(fu)后角等(deng)方法，采(cai)用淺(qian)刀快走多(duo)(duo)循環(huan)的(de)(de)加(jia)(jia)(jia)工(gong)(gong)方式，并且自(zi)制檢驗(yan)(yan)量具進行檢測，最終順(shun)利完(wan)成(cheng)此次加(jia)(jia)(jia)工(gong)(gong)任(ren)務，為公(gong)司積累(lei)了加(jia)(jia)(jia)工(gong)(gong)該類產品的(de)(de)經(jing)驗(yan)(yan)。

埋頭鉆研屢破難關

公(gong)司新產品(pin)JFJ001型離心(xin)風機(ji)的(de)(de)進(jin)風口，其(qi)壁厚只有2mm，屬于典型的(de)(de)異(yi)形薄(bo)壁件。夏天(tian)堯(yao)嘗試數十次(ci)不同(tong)的(de)(de)加工(gong)方法，通過上(shang)百次(ci)修磨修改自(zi)制(zhi)刀具的(de)(de)參數，自(zi)制(zhi)十多種不同(tong)類(lei)型的(de)(de)工(gong)裝，最(zui)終(zhong)創新自(zi)制(zhi)一種靠(kao)摩(mo)擦(ca)力帶動異(yi)形薄(bo)壁零件的(de)(de)車削工(gong)具來完成加工(gong)。順利(li)地攻克此難(nan)題(ti)，為公(gong)司新產品(pin)開發奠定了堅(jian)實(shi)基(ji)礎。

2020年，公司接到某海上平臺壓縮機維修訂單后，經實地勘察發現，維修最大的困難在于壓縮機核心零部件葉輪的測繪制作。同時，該葉輪材質特殊、硬度極高、加工難度大等一系列難題擺在他面前。對此，他自行設計(ji)制作了一(yi)套內(nei)嵌套式裝夾工裝，既保(bao)證不傷密封齒又不傷整(zheng)體型(xing)線，順(shun)利實現該型(xing)壓(ya)縮機葉輪的加工，為下一(yi)步(bu)國產化積累了豐富的加工經(jing)驗。