在機(ji)械(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)領(ling)域中，宣城機(ji)械(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)，在進行零件(jian)(jian)(jian)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)之前需(xu)要了(le)解(jie)材料的(de)(de)(de)密度(du)(du)，如果密度(du)(du)太大，那么其(qi)對(dui)應的(de)(de)(de)硬(ying)(ying)度(du)(du)也就越大，如果硬(ying)(ying)度(du)(du)超(chao)過(guo)了(le)機(ji)床的(de)(de)(de)硬(ying)(ying)度(du)(du)，就沒法實施(shi)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)，如果遇到(dao)這樣的(de)(de)(de)情況(kuang)還是(shi)進行加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)話，不僅會損(sun)壞零件(jian)(jian)(jian)，還會造成(cheng)其(qi)他的(de)(de)(de)危險，比方說(shuo)崩(beng)刀(dao)、損(sun)壞機(ji)床等，因此，機(ji)械(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)領(ling)域中，加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)材質應該要低于(yu)刀(dao)具的(de)(de)(de)硬(ying)(ying)度(du)(du)，這樣的(de)(de)(de)材料才適合做精(jing)密機(ji)械(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。為提(ti)高(gao)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)質量和(he)延長使用壽命(ming)，需(xu)去除所有金(jin)屬精(jing)密件(jian)(jian)(jian)上的(de)(de)(de)毛刺。工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)表(biao)面、銳角(jiao)和(he)棱邊(bian)必(bi)須達到(dao)極(ji)高(gao)的(de)(de)(de)金(jin)屬潔凈度(du)(du)，精(jing)密機(ji)械(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廠家，必(bi)要時，必(bi)須適用于(yu)非電(dian)鍍(du)和(he)電(dian)鍍(du)金(jin)屬。通過(guo)刀(dao)具的(de)(de)(de)轉動(dong)和(he)工(gong)(gong)(gong)(gong)(gong)件(jian)(jian)(jian)的(de)(de)(de)軸(zhou)向運動(dong)，銑床完成(cheng)了(le)金(jin)屬材料的(de)(de)(de)成(cheng)形。顯然，銑床在機(ji)械(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)中的(de)(de)(de)定位非常重要。

機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)工(gong)(gong)(gong)的(de)優勢：機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)工(gong)(gong)(gong)不(bu)(bu)需(xu)要(yao)開模，且自由度高(gao)；機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)工(gong)(gong)(gong)的(de)精(jing)(jing)度非(fei)常高(gao)，有(you)利于提(ti)(ti)高(gao)工(gong)(gong)(gong)件質量；機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)工(gong)(gong)(gong)的(de)，有(you)利于提(ti)(ti)高(gao)產量。機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)工(gong)(gong)(gong)設備使用的(de)材料(liao)須符(fu)合(he)安全環保要(yao)求(qiu)(qiu)，不(bu)(bu)允許(xu)使用對人體有(you)害和未經安全部門檢驗(yan)合(he)格(ge)的(de)材料(liao)。產品在加(jia)(jia)工(gong)(gong)(gong)的(de)時候(hou)，根據(ju)不(bu)(bu)同的(de)產品要(yao)求(qiu)(qiu)要(yao)進(jin)(jin)行(xing)不(bu)(bu)同程度的(de)加(jia)(jia)工(gong)(gong)(gong)，加(jia)(jia)工(gong)(gong)(gong)程度需(xu)要(yao)進(jin)(jin)行(xing)劃分，機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)工(gong)(gong)(gong)價格(ge)，如果對精(jing)(jing)度要(yao)求(qiu)(qiu)不(bu)(bu)高(gao)，那(nei)么進(jin)(jin)行(xing)一個簡單的(de)粗加(jia)(jia)工(gong)(gong)(gong)階段就(jiu)行(xing)了。產品的(de)進(jin)(jin)度要(yao)求(qiu)(qiu)越(yue)來越(yue)嚴格(ge)，后續就(jiu)要(yao)進(jin)(jin)行(xing)半精(jing)(jing)加(jia)(jia)工(gong)(gong)(gong)和精(jing)(jing)加(jia)(jia)工(gong)(gong)(gong)階段。

精密(mi)零件加(jia)(jia)工其(qi)實是機(ji)(ji)械加(jia)(jia)工的(de)一種，但是因(yin)為(wei)對(dui)零件的(de)加(jia)(jia)工精密(mi)度(du)較高(gao)，對(dui)生產(chan)機(ji)(ji)械及流程要求(qiu)也(ye)比較高(gao)。隨著工業化發展，精密(mi)機(ji)(ji)械加(jia)(jia)工分(fen)類越(yue)(yue)來越(yue)(yue)多(duo)，機(ji)(ji)械加(jia)(jia)工公(gong)司(si)，方向越(yue)(yue)來越(yue)(yue)細(xi)，越(yue)(yue)來越(yue)(yue)化。對(dui)材料硬(ying)度(du)的(de)要求(qiu)，在一些特殊情況下，材料的(de)硬(ying)度(du)會越(yue)(yue)高(gao)越(yue)(yue)好，于(yu)加(jia)(jia)工零件的(de)硬(ying)度(du)要求(qiu)，加(jia)(jia)工之后的(de)材料不應該太硬(ying)，如果(guo)其(qi)比機(ji)(ji)床(chuang)部件或者機(ji)(ji)床(chuang)刀(dao)具還硬(ying)的(de)話是沒法進行加(jia)(jia)工的(de)。為(wei)提高(gao)工件質量(liang)和(he)延(yan)長使用壽命(ming)，需去除(chu)所有金(jin)屬精密(mi)件上的(de)毛刺。工件表(biao)面、銳角和(he)棱邊(bian)必須達(da)到(dao)極高(gao)的(de)金(jin)屬潔凈度(du)，必要時，必須適用于(yu)非(fei)電鍍和(he)電鍍金(jin)屬。