關于硬質合金精密加工的介(jie)紹
硬(ying)(ying)(ying)質(zhi)合(he)金(jin)是一(yi)種硬(ying)(ying)(ying)度非(fei)常高(gao)的(de)(de)材(cai)料,其加(jia)工(gong)(gong)過程也(ye)是有(you)一(yi)定難(nan)度的(de)(de)。近年(nian)來隨著科技(ji)的(de)(de)進步(bu)和生產的(de)(de)發展,很(hen)多工(gong)(gong)業領域對(dui)硬(ying)(ying)(ying)質(zhi)合(he)金(jin)工(gong)(gong)件的(de)(de)加(jia)工(gong)(gong)要求(qiu)越來越高(gao),包(bao)括(kuo)精密(mi)公差尺寸和表(biao)面粗糙(cao)度的(de)(de)高(gao)要求(qiu),以及一(yi)些堅硬(ying)(ying)(ying)難(nan)加(jia)工(gong)(gong)材(cai)料制成的(de)(de)復雜(za)零件。對(dui)硬(ying)(ying)(ying)質(zhi)合(he)金(jin)精密(mi)加(jia)工(gong)(gong)提出(chu)了新的(de)(de)挑(tiao)戰。今天,西迪小編給大家分享的(de)(de)便是關(guan)于(yu)硬(ying)(ying)(ying)質(zhi)合(he)金(jin)精密(mi)加(jia)工(gong)(gong)的(de)(de)相(xiang)關(guan)知識(shi)。
硬質合金精(jing)(jing)密加(jia)工(gong)(gong)(gong)包(bao)括精(jing)(jing)整(zheng)(zheng)(zheng)加(jia)工(gong)(gong)(gong)和(he)光(guang)整(zheng)(zheng)(zheng)加(jia)工(gong)(gong)(gong),精(jing)(jing)整(zheng)(zheng)(zheng)加(jia)工(gong)(gong)(gong)是(shi)生(sheng)產中(zhong)常用的(de)(de)精(jing)(jing)密加(jia)工(gong)(gong)(gong),指的(de)(de)是(shi)在精(jing)(jing)加(jia)工(gong)(gong)(gong)之后從工(gong)(gong)(gong)件上(shang)切除很(hen)薄的(de)(de)材(cai)料層(ceng)(ceng),以(yi)提高工(gong)(gong)(gong)件的(de)(de)精(jing)(jing)度(du)和(he)減少(shao)表(biao)面(mian)(mian)的(de)(de)粗(cu)(cu)糙(cao)度(du)值(zhi)為(wei)目的(de)(de)的(de)(de)加(jia)工(gong)(gong)(gong)方法,如研磨、珩磨等。而(er)精(jing)(jing)密加(jia)工(gong)(gong)(gong)的(de)(de)光(guang)整(zheng)(zheng)(zheng)加(jia)工(gong)(gong)(gong)是(shi)指不切除或(huo)者從工(gong)(gong)(gong)件上(shang)切除極(ji)薄材(cai)料層(ceng)(ceng),以(yi)降低(di)表(biao)面(mian)(mian)粗(cu)(cu)糙(cao)度(du)為(wei)目的(de)(de)的(de)(de)加(jia)工(gong)(gong)(gong)方法,比如超精(jing)(jing)加(jia)工(gong)(gong)(gong)、拋(pao)光(guang)等。
硬質合金精密加(jia)工的研(yan)磨是(shi)用研(yan)磨工具和研(yan)磨劑(ji),從(cong)工件上研(yan)去(qu)一層(ceng)極薄表面層(ceng)的精加(jia)工方(fang)法(fa)。
采用不同(tong)的研磨(mo)工(gong)(gong)具(ju)(ju),比如研磨(mo)芯棒、研磨(mo)套、研磨(mo)平板(ban)等,可對硬質合金的內(nei)圓(yuan)、外(wai)圓(yuan)和(he)平面等進行研磨(mo)。為了(le)磨(mo)料能嵌入研磨(mo)套的內(nei)表面,研磨(mo)套的材料應該軟(ruan)一些,常用的是鑄鐵。研磨(mo)時先在工(gong)(gong)具(ju)(ju)表面涂上(shang)一層均(jun)勻的研磨(mo)劑(ji),手持研磨(mo)工(gong)(gong)具(ju)(ju)在軸上(shang)來(lai)回移動,直至達到研磨(mo)要(yao)求為止(zhi)。
研磨的精密加工方法具(ju)有以下特點:
1、 經過研磨后的工件(jian)表面(mian),尺寸精度(du)可以達到IT4-IT1級;表面(mian)粗糙度(du)值可減小到0.1-0.0006μm。形狀精度(du)可相應提(ti)高。
2、 生產效率比較(jiao)低,加工余量(liang)小。
3、 研磨劑(ji)易飛濺,污染環境。
在現代制造業中,研磨(mo)應用非常廣,許多精密量(liang)塊、量(liang)規、齒輪、鋼球、噴油嘴、石英晶體、陶瓷元件(jian)等零件(jian)均需研磨(mo)。
我們再(zai)來看看硬質(zhi)合金精密(mi)加(jia)(jia)工(gong)的另外一種加(jia)(jia)工(gong)方式珩磨。珩磨的加(jia)(jia)工(gong)原理是利用珩磨工(gong)具對工(gong)件表面施加(jia)(jia)一定壓力,珩磨工(gong)具同時作(zuo)往復(fu)振(zhen)動(dong)(dong)、相(xiang)對旋轉和直(zhi)線往復(fu)運(yun)動(dong)(dong),切(qie)除工(gong)件上極(ji)小的余量的精密(mi)加(jia)(jia)工(gong)方法。
拋光(guang)是(shi)(shi)利用機械、化學(xue)或電化學(xue)地作用,使工件獲的光(guang)亮(liang)、平(ping)整表面的加(jia)工方法。拋光(guang)是(shi)(shi)安排在工件精加(jia)工之后進行,拋光(guang)之后的工件,粗糙度R值可達0.1-0.012μm,并能明顯(xian)增加(jia)光(guang)亮(liang)度,但是(shi)(shi)不能保(bao)持原有的精度。
硬(ying)質(zhi)合(he)金(jin)精密加(jia)(jia)工(gong)(gong)(gong)還有(you)很多加(jia)(jia)工(gong)(gong)(gong)方式,如CNC銑削加(jia)(jia)工(gong)(gong)(gong)、慢走絲(si)線(xian)切割加(jia)(jia)工(gong)(gong)(gong)、電火花(hua)加(jia)(jia)工(gong)(gong)(gong)、數控(kong)車床加(jia)(jia)工(gong)(gong)(gong)等(deng)等(deng),今天給(gei)大家介紹的還只(zhi)是(shi)(shi)磨(mo)加(jia)(jia)工(gong)(gong)(gong)的一小部(bu)分,硬(ying)質(zhi)合(he)金(jin)精密加(jia)(jia)工(gong)(gong)(gong)是(shi)(shi)一門(men)大學問,公司在硬(ying)質(zhi)合(he)金(jin)精密加(jia)(jia)工(gong)(gong)(gong)方面擁(yong)有(you)非常雄厚的實力,配備各類先進(jin)加(jia)(jia)工(gong)(gong)(gong)設備,適用(yong)于各類高精密、特種(zhong)材料、偏心內(nei)外形、彎頭、復雜幾何零(ling)件(jian)的加(jia)(jia)工(gong)(gong)(gong),歡迎前(qian)來(lai)咨詢(xun)。
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