關于硬(ying)質(zhi)合金精密加工的(de)介紹
硬(ying)(ying)質(zhi)合金(jin)是一種硬(ying)(ying)度非(fei)常(chang)高的(de)(de)材料,其加(jia)工(gong)(gong)(gong)過程也是有一定難度的(de)(de)。近年(nian)來隨著科技的(de)(de)進步(bu)和(he)生(sheng)產的(de)(de)發展,很多工(gong)(gong)(gong)業領域對(dui)(dui)硬(ying)(ying)質(zhi)合金(jin)工(gong)(gong)(gong)件的(de)(de)加(jia)工(gong)(gong)(gong)要(yao)求越(yue)來越(yue)高,包括(kuo)精密(mi)(mi)公差尺寸和(he)表面粗糙度的(de)(de)高要(yao)求,以(yi)及一些堅硬(ying)(ying)難加(jia)工(gong)(gong)(gong)材料制成的(de)(de)復(fu)雜零(ling)件。對(dui)(dui)硬(ying)(ying)質(zhi)合金(jin)精密(mi)(mi)加(jia)工(gong)(gong)(gong)提出了新的(de)(de)挑戰。今天,西迪小編給大(da)家分享的(de)(de)便是關于(yu)硬(ying)(ying)質(zhi)合金(jin)精密(mi)(mi)加(jia)工(gong)(gong)(gong)的(de)(de)相(xiang)關知識。
硬質合金精密加(jia)工(gong)(gong)包括精整加(jia)工(gong)(gong)和光(guang)整加(jia)工(gong)(gong),精整加(jia)工(gong)(gong)是生(sheng)產中常用的(de)(de)精密加(jia)工(gong)(gong),指(zhi)的(de)(de)是在精加(jia)工(gong)(gong)之(zhi)后(hou)從(cong)工(gong)(gong)件(jian)上切除很薄(bo)的(de)(de)材(cai)料層,以提高(gao)工(gong)(gong)件(jian)的(de)(de)精度和減少表(biao)面(mian)的(de)(de)粗糙度值(zhi)為目(mu)的(de)(de)的(de)(de)加(jia)工(gong)(gong)方(fang)法,如研磨(mo)、珩磨(mo)等。而精密加(jia)工(gong)(gong)的(de)(de)光(guang)整加(jia)工(gong)(gong)是指(zhi)不(bu)切除或者從(cong)工(gong)(gong)件(jian)上切除極薄(bo)材(cai)料層,以降低表(biao)面(mian)粗糙度為目(mu)的(de)(de)的(de)(de)加(jia)工(gong)(gong)方(fang)法,比如超精加(jia)工(gong)(gong)、拋(pao)光(guang)等。
硬質合金精密加工(gong)的研磨(mo)是用(yong)研磨(mo)工(gong)具(ju)和研磨(mo)劑,從工(gong)件上研去一層極(ji)薄表面層的精加工(gong)方法。
采用(yong)不同(tong)的(de)研(yan)(yan)(yan)磨(mo)工(gong)具(ju),比(bi)如研(yan)(yan)(yan)磨(mo)芯棒、研(yan)(yan)(yan)磨(mo)套(tao)(tao)、研(yan)(yan)(yan)磨(mo)平(ping)(ping)板等,可對(dui)硬質(zhi)合金的(de)內(nei)圓(yuan)、外圓(yuan)和平(ping)(ping)面(mian)等進行研(yan)(yan)(yan)磨(mo)。為(wei)(wei)了(le)磨(mo)料(liao)能嵌入(ru)研(yan)(yan)(yan)磨(mo)套(tao)(tao)的(de)內(nei)表(biao)面(mian),研(yan)(yan)(yan)磨(mo)套(tao)(tao)的(de)材料(liao)應該軟(ruan)一些,常用(yong)的(de)是鑄鐵(tie)。研(yan)(yan)(yan)磨(mo)時先在(zai)工(gong)具(ju)表(biao)面(mian)涂上(shang)一層(ceng)均勻(yun)的(de)研(yan)(yan)(yan)磨(mo)劑,手持研(yan)(yan)(yan)磨(mo)工(gong)具(ju)在(zai)軸(zhou)上(shang)來回移動,直至達到研(yan)(yan)(yan)磨(mo)要求為(wei)(wei)止(zhi)。
研(yan)磨的精密加工方法具有以下特點(dian):
1、 經過研磨后的工件表面,尺寸精(jing)度(du)可(ke)以達到(dao)IT4-IT1級;表面粗糙度(du)值可(ke)減小到(dao)0.1-0.0006μm。形狀精(jing)度(du)可(ke)相應提(ti)高。
2、 生產效率比較低,加工余量小(xiao)。
3、 研(yan)磨(mo)劑易飛(fei)濺,污染環境。
在現代制造業(ye)中,研磨應用(yong)非常廣,許(xu)多精密量塊、量規(gui)、齒輪、鋼球、噴油(you)嘴、石(shi)英晶體、陶瓷元件等(deng)零件均需研磨。
我們再來看看硬質合金精(jing)密(mi)加工(gong)(gong)的(de)另外一種加工(gong)(gong)方式珩(heng)磨(mo)(mo)。珩(heng)磨(mo)(mo)的(de)加工(gong)(gong)原理是利用珩(heng)磨(mo)(mo)工(gong)(gong)具對(dui)工(gong)(gong)件表(biao)面(mian)施加一定(ding)壓力,珩(heng)磨(mo)(mo)工(gong)(gong)具同時作往復振動、相對(dui)旋轉和直線(xian)往復運動,切除工(gong)(gong)件上極小(xiao)的(de)余量(liang)的(de)精(jing)密(mi)加工(gong)(gong)方法(fa)。
拋光(guang)(guang)(guang)是(shi)(shi)利用(yong)機械(xie)、化(hua)學或電化(hua)學地作(zuo)用(yong),使工件獲的(de)光(guang)(guang)(guang)亮(liang)、平整表(biao)面的(de)加工方法。拋光(guang)(guang)(guang)是(shi)(shi)安排在(zai)工件精(jing)加工之后進行(xing),拋光(guang)(guang)(guang)之后的(de)工件,粗糙度R值可達0.1-0.012μm,并能(neng)明顯增(zeng)加光(guang)(guang)(guang)亮(liang)度,但是(shi)(shi)不能(neng)保持原有的(de)精(jing)度。
硬(ying)質合(he)金精(jing)(jing)密(mi)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)還有很多(duo)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)式,如CNC銑削加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、慢走絲線(xian)切割(ge)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、電火花加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、數控車床加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)等等,今天給大(da)家(jia)介紹的(de)還只是磨(mo)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)的(de)一(yi)小部分,硬(ying)質合(he)金精(jing)(jing)密(mi)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)是一(yi)門大(da)學問(wen),公司在硬(ying)質合(he)金精(jing)(jing)密(mi)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)面擁有非常雄厚的(de)實力,配(pei)備(bei)(bei)各(ge)類先進加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)設備(bei)(bei),適(shi)用于各(ge)類高精(jing)(jing)密(mi)、特種材(cai)料、偏心內外形、彎頭(tou)、復(fu)雜(za)幾何零件的(de)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong),歡(huan)迎(ying)前來咨(zi)詢(xun)。
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