數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)是指用數(shu)控(kong)(kong)的加(jia)(jia)工(gong)(gong)(gong)工(gong)(gong)(gong)具(ju)(ju)進行的加(jia)(jia)工(gong)(gong)(gong)。CNC指數(shu)控(kong)(kong)機(ji)床(chuang)由數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)語(yu)言(yan)進行編程控(kong)(kong)制(zhi)(zhi)，通常為G代碼(ma)。數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)G代碼(ma)語(yu)言(yan)告訴(su)數(shu)控(kong)(kong)機(ji)床(chuang)的加(jia)(jia)工(gong)(gong)(gong)刀(dao)具(ju)(ju)采用何種 笛(di)卡(ka)爾(er)位(wei)置坐標，并控(kong)(kong)制(zhi)(zhi)刀(dao)具(ju)(ju)的進給速度和(he)主軸轉速，以及工(gong)(gong)(gong)具(ju)(ju)變換器、冷卻劑等功能(neng)。 數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)相對手(shou)動加(jia)(jia)工(gong)(gong)(gong)具(ju)(ju)有(you)(you)很大的優勢，如數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)生產出的零(ling)件(jian)非常準確(que)并具(ju)(ju)有(you)(you)可(ke)重復性；數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)可(ke)以生產手(shou)動加(jia)(jia)工(gong)(gong)(gong)無(wu)法(fa)完成(cheng)的具(ju)(ju)有(you)(you)復雜外形(xing)的零(ling)件(jian)。數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)技術現已普遍推廣，大多(duo)數(shu)的機(ji)加(jia)(jia)工(gong)(gong)(gong)車(che)間(jian)都具(ju)(ju)有(you)(you)數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)能(neng)力，典型(xing)的機(ji)加(jia)(jia)工(gong)(gong)(gong)車(che)間(jian)中常見的數(shu)控(kong)(kong)加(jia)(jia)工(gong)(gong)(gong)方式(shi)有(you)(you)數(shu)控(kong)(kong)銑、數(shu)控(kong)(kong)車(che)和(he)數(shu)控(kong)(kong)EDM線(xian)切(qie)(qie)割（電火(huo)花線(xian)切(qie)(qie) 割）。

在傳統的(de)(de)金(jin)屬(shu)加(jia)工(gong)領域，零(ling)件(jian)的(de)(de)制造(zao)就是火星四(si)濺的(de)(de)鑄(zhu)鍛焊(han)以及硬(ying)(ying)碰硬(ying)(ying)的(de)(de)車(che)銑刨磨鉗，我們生活中見到的(de)(de)任何一個稍(shao)微有些(xie)形狀的(de)(de)金(jin)屬(shu)，在我們見到之前，模具零(ling)件(jian)加(jia)工(gong)，都已經在工(gong)廠經歷(li)了(le)多(duo)次鐵與火的(de)(de)淬(cui)煉。

既然金屬零件是機(ji)器制(zhi)造的，那么(me)機(ji)器又是如何制(zhi)造的呢？原(yuan)來，它是通過機(ji)床(chuang)完成的。

機床是其他機器的(de)“母機”。

煉鋼(gang)廠出(chu)產的(de)(de)鋼(gang)鐵并不(bu)是(shi)(shi)我們在(zai)生(sheng)活(huo)中(zhong)見到的(de)(de)各種(zhong)奇奇怪(guai)怪(guai)的(de)(de)形(xing)狀(zhuang)(zhuang)，而(er)是(shi)(shi)板材(cai)(cai)、管材(cai)(cai)、鑄錠等(deng)等(deng)形(xing)狀(zhuang)(zhuang)比較(jiao)(jiao)規則的(de)(de)材(cai)(cai)料，這些(xie)材(cai)(cai)料要加(jia)工(gong)(gong)成各種(zhong)形(xing)狀(zhuang)(zhuang)的(de)(de)零件就需要使用(yong)機(ji)(ji)床進行切(qie)(qie)削；還(huan)有一些(xie)精度(du)要求較(jiao)(jiao)高和表面粗糙度(du)要求較(jiao)(jiao)細的(de)(de)零件，模具制造加(jia)工(gong)(gong)，就要在(zai)機(ji)(ji)床上用(yong)精細繁復的(de)(de)工(gong)(gong)藝切(qie)(qie)出(chu)來或者磨出(chu)來。

一般CNC加工(gong)通常(chang)是指(zhi)計(ji)算機(ji)數字化(hua)控制精密機(ji)械(xie)加工(gong)，CNC加工(gong)車床(chuang)、CNC加工(gong)銑(xian)床(chuang)、CNC加工(gong)鏜銑(xian)床(chuang)等。

CNC又叫做電腦鑼(luo)、CNCCH或數控(kong)機(ji)床(chuang)其實是香(xiang)港那邊的一(yi)種(zhong)叫法，內蒙古模(mo)具加(jia)(jia)(jia)工(gong)(gong)，后來(lai)傳入大陸珠三角，其實就是數控(kong)銑(xian)床(chuang)，精密模(mo)具加(jia)(jia)(jia)工(gong)(gong)廠，在廣、江浙滬(hu)一(yi)帶有人叫“CNC加(jia)(jia)(jia)工(gong)(gong)中心”機(ji)械加(jia)(jia)(jia)工(gong)(gong)的一(yi)種(zhong)，是新型加(jia)(jia)(jia)工(gong)(gong)技(ji)術，主(zhu)要(yao)工(gong)(gong)作是編制(zhi)加(jia)(jia)(jia)工(gong)(gong)程(cheng)序，即將(jiang)原來(lai)手工(gong)(gong)活轉為(wei)電腦編程(cheng)。當然需要(yao)有手工(gong)(gong)加(jia)(jia)(jia)工(gong)(gong)的經驗。