快速成形(xing)技術(shu)是(shi)(shi)20世紀發展起(qi)來(lai)的(de)，可根據(ju)CAD模(mo)型(xing)快速制造(zao)出(chu)樣件或者零件。它是(shi)(shi)一(yi)種(zhong)材料(liao)累加(jia)加(jia)工(gong)(gong)(gong)制造(zao)方(fang)法，即通過材料(liao)的(de)有序(xu)(xu)累加(jia)而完成三維成形(xing)的(de)。工(gong)(gong)(gong)藝路線的(de)擬(ni)定是(shi)(shi)制定工(gong)(gong)(gong)藝過程的(de)總(zong)體布局，主(zhu)要任務是(shi)(shi)選(xuan)擇各(ge)個(ge)表(biao)(biao)面(mian)的(de)加(jia)工(gong)(gong)(gong)方(fang)法，確定各(ge)個(ge)表(biao)(biao)面(mian)的(de)加(jia)工(gong)(gong)(gong)順序(xu)(xu)，以及整個(ge)工(gong)(gong)(gong)藝過程中(zhong)(zhong)工(gong)(gong)(gong)序(xu)(xu)數(shu)目的(de)多少等(deng)。工(gong)(gong)(gong)藝路線擬(ni)定須遵循一(yi)定的(de)原則。加(jia)工(gong)(gong)(gong)時(shi)工(gong)(gong)(gong)件定位(wei)(wei)所用(yong)的(de)基準(zhun)，稱為(wei)定位(wei)(wei)基準(zhun)。作為(wei)定位(wei)(wei)基準(zhun)的(de)表(biao)(biao)面(mian)（或線、點(dian)），在道(dao)工(gong)(gong)(gong)序(xu)(xu)中(zhong)(zhong)只能選(xuan)擇未加(jia)工(gong)(gong)(gong)的(de)毛坯表(biao)(biao)面(mian)，這(zhe)種(zhong)定位(wei)(wei)表(biao)(biao)面(mian)稱粗基準(zhun).在以后的(de)各(ge)個(ge)工(gong)(gong)(gong)序(xu)(xu)中(zhong)(zhong)就可采(cai)用(yong)已加(jia)工(gong)(gong)(gong)表(biao)(biao)面(mian)作為(wei)定位(wei)(wei)基準(zhun)，這(zhe)種(zhong)定位(wei)(wei)表(biao)(biao)面(mian)稱精(jing)基準(zhun)。

在(zai)機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)領域(yu)中，在(zai)進行零(ling)件(jian)加工(gong)之前需要了解材(cai)料的(de)(de)(de)(de)密(mi)度，如(ru)(ru)果密(mi)度太(tai)大，那么其對應的(de)(de)(de)(de)硬(ying)(ying)(ying)度也就(jiu)越大，數(shu)控機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)，如(ru)(ru)果硬(ying)(ying)(ying)度超(chao)過了機(ji)(ji)(ji)床的(de)(de)(de)(de)硬(ying)(ying)(ying)度，就(jiu)沒法實施加工(gong)，如(ru)(ru)果遇到(dao)這(zhe)樣的(de)(de)(de)(de)情(qing)(qing)況還是進行加工(gong)的(de)(de)(de)(de)話，不僅會損壞零(ling)件(jian)，還會造成其他的(de)(de)(de)(de)危險，附近機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)廠，比方說崩刀(dao)、損壞機(ji)(ji)(ji)床等，因此，機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)領域(yu)中，加工(gong)材(cai)質(zhi)應該(gai)要低于刀(dao)具的(de)(de)(de)(de)硬(ying)(ying)(ying)度，這(zhe)樣的(de)(de)(de)(de)材(cai)料才適合做(zuo)精密(mi)機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)。進行機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)的(de)(de)(de)(de)時(shi)候一定要先將其毛刺(ci)或者是磕碰傷情(qing)(qing)況解決以(yi)后再放入(ru)到(dao)里面，這(zhe)樣就(jiu)能(neng)夠減少齒輪傳動噪(zao)音的(de)(de)(de)(de)出現(xian)(xian)。機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)是通過機(ji)(ji)(ji)械(xie)(xie)(xie)設備對工(gong)件(jian)的(de)(de)(de)(de)外(wai)形尺寸或性能(neng)進行改變(bian)的(de)(de)(de)(de)加工(gong)過程，機(ji)(ji)(ji)械(xie)(xie)(xie)加工(gong)對現(xian)(xian)代工(gong)業生(sheng)產起到(dao)了非常重要的(de)(de)(de)(de)作用。

在(zai)機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)中，如果進行工(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)規(gui)(gui)程設計(ji)的(de)(de)話，其是有一些設計(ji)原則的(de)(de)，其主要是為：一是所設計(ji)的(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)藝(yi)規(gui)(gui)程能(neng)夠讓(rang)零部(bu)件(jian)(jian)或工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)有好的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)質量，并能(neng)夠達到(dao)設計(ji)圖樣(yang)上(shang)所規(gui)(gui)定的(de)(de)各項技(ji)(ji)術(shu)(shu)(shu)(shu)要求。平面(mian)(mian)的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)余(yu)量則是單邊余(yu)量，它等于實際所切(qie)除(chu)的(de)(de)金屬(shu)層(ceng)厚度。在(zai)工(gong)(gong)(gong)(gong)(gong)(gong)件(jian)(jian)上(shang)留加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)余(yu)量的(de)(de)目(mu)的(de)(de)是為了切(qie)除(chu)上(shang)一道工(gong)(gong)(gong)(gong)(gong)(gong)序(xu)所留下來的(de)(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)誤差和(he)表面(mian)(mian)缺陷，如鑄件(jian)(jian)表面(mian)(mian)冷(leng)硬層(ceng)、氣孔、夾砂層(ceng)，鍛件(jian)(jian)表面(mian)(mian)的(de)(de)氧化皮、脫碳(tan)層(ceng)、表面(mian)(mian)裂紋，切(qie)削加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)后的(de)(de)內應力層(ceng)和(he)表面(mian)(mian)粗糙度等。隨著現代機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)快(kuai)(kuai)速(su)發展，合(he)肥機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)，機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)(shu)(shu)快(kuai)(kuai)速(su)發展，慢慢的(de)(de)涌現出了許(xu)多的(de)(de)機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)(shu)(shu)方法(fa)，比(bi)如微型機(ji)(ji)(ji)械(xie)(xie)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)(shu)(shu)、快(kuai)(kuai)速(su)成形技(ji)(ji)術(shu)(shu)(shu)(shu)、精密(mi)(mi)超精密(mi)(mi)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技(ji)(ji)術(shu)(shu)(shu)(shu)等。