常(chang)用(yong)(yong)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)方法(fa)有金(jin)剛石(shi)(shi)車削(xue)、金(jin)剛石(shi)(shi)鏜削(xue)、珩(heng)(heng)磨(mo)(mo)(mo)(mo)、研磨(mo)(mo)(mo)(mo)、超精加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)、砂(sha)帶磨(mo)(mo)(mo)(mo)削(xue)和(he)(he)鏡面(mian)磨(mo)(mo)(mo)(mo)削(xue)等(deng)。金(jin)剛石(shi)(shi)車削(xue)和(he)(he)金(jin)剛石(shi)(shi)鏜削(xue)都是(shi)利用(yong)(yong)聚晶金(jin)剛石(shi)(shi)刀具進(jin)行(xing)切削(xue)，珩(heng)(heng)磨(mo)(mo)(mo)(mo)是(shi)采(cai)用(yong)(yong)鑲(xiang)嵌在珩(heng)(heng)磨(mo)(mo)(mo)(mo)頭上(shang)的(de)油石(shi)(shi)(又稱珩(heng)(heng)磨(mo)(mo)(mo)(mo)條)主(zhu)要對孔進(jin)行(xing)精整(zheng)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)。研磨(mo)(mo)(mo)(mo)是(shi)利用(yong)(yong)涂敷(fu)或壓嵌在研具上(shang)的(de)磨(mo)(mo)(mo)(mo)料顆粒，通過研具與(yu)工(gong)(gong)(gong)(gong)件(jian)在一定壓力下(xia)的(de)相對運(yun)動(dong)對加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)表面(mian)進(jin)行(xing)的(de)精整(zheng)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)。超精加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)是(shi)采(cai)用(yong)(yong)裝(zhuang)在振動(dong)頭上(shang)的(de)細(xi)粒度油石(shi)(shi)對精加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)表面(mian)進(jin)行(xing)精整(zheng)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)。砂(sha)帶磨(mo)(mo)(mo)(mo)削(xue)是(shi)采(cai)用(yong)(yong)高速運(yun)轉的(de)環(huan)形(xing)砂(sha)帶加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)件(jian)表面(mian)的(de)磨(mo)(mo)(mo)(mo)削(xue)。鏡面(mian)磨(mo)(mo)(mo)(mo)削(xue)是(shi)達到最佳(jia)表面(mian)粗糙度的(de)磨(mo)(mo)(mo)(mo)削(xue)方法(fa)。磨(mo)(mo)(mo)(mo)削(xue)后的(de)工(gong)(gong)(gong)(gong)件(jian)，表面(mian)粗糙度不大于(yu)0.01微米(mi)，光如鏡面(mian)，可以清晰成像。精密加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)在制(zhi)造業中處于(yu)十分重要的(de)地位，常(chang)用(yong)(yong)于(yu)精密絲杠、精密齒輪、精密蝸(gua)輪、精密導軌和(he)(he)精密軸承等(deng)關鍵零(ling)件(jian)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)(gong)。

　　熱強度高

　　使用(yong)溫(wen)(wen)度(du)比(bi)鋁(lv)合金高幾(ji)百度(du)，在(zai)(zai)中等溫(wen)(wen)度(du)下(xia)(xia)仍能(neng)保持所要求的(de)強度(du),可在(zai)(zai)450～500℃的(de)溫(wen)(wen)度(du)下(xia)(xia)長期工作(zuo)這兩類鈦(tai)合金在(zai)(zai)150℃～500℃范圍內仍有(you)很高的(de)比(bi)強度(du)，而鋁(lv)合金在(zai)(zai)150℃時比(bi)強度(du)明顯下(xia)(xia)降。鈦(tai)合金的(de)工作(zuo)溫(wen)(wen)度(du)可達500℃，鋁(lv)合金則在(zai)(zai)200℃以下(xia)(xia)。

　　抗蝕性好

　　鈦合金(jin)在潮濕的(de)大(da)氣和海水介質中工作(zuo)，其抗(kang)蝕性遠優于不銹鋼;對點蝕、酸(suan)(suan)蝕、應力(li)(li)腐(fu)蝕的(de)抵(di)抗(kang)力(li)(li)特別(bie)強;對堿、氯(lv)化物、氯(lv)的(de)有(you)機(ji)物品、硝酸(suan)(suan)、硫酸(suan)(suan)等有(you)優良的(de)抗(kang)腐(fu)蝕能力(li)(li)。但鈦對具有(you)還原性氧及鉻鹽(yan)介質的(de)抗(kang)蝕性差。

　　低溫性能好

　　鈦(tai)合金(jin)(jin)在低溫(wen)(wen)和超低溫(wen)(wen)下，仍能(neng)(neng)保持(chi)其力(li)學性(xing)能(neng)(neng)。低溫(wen)(wen)性(xing)能(neng)(neng)好，間隙元素極(ji)低的鈦(tai)合金(jin)(jin)，如TA7，在-253℃下還能(neng)(neng)保持(chi)一(yi)定的塑(su)性(xing)。因(yin)此(ci)，鈦(tai)合金(jin)(jin)也是一(yi)種重要的低溫(wen)(wen)結構材料。