常(chang)用(yong)的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)方法有金(jin)剛(gang)(gang)石(shi)車削(xue)(xue)(xue)(xue)(xue)、金(jin)剛(gang)(gang)石(shi)鏜削(xue)(xue)(xue)(xue)(xue)、珩磨(mo)(mo)(mo)(mo)、研(yan)(yan)磨(mo)(mo)(mo)(mo)、超(chao)精(jing)(jing)(jing)(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)、砂(sha)帶(dai)磨(mo)(mo)(mo)(mo)削(xue)(xue)(xue)(xue)(xue)和鏡(jing)面(mian)(mian)(mian)磨(mo)(mo)(mo)(mo)削(xue)(xue)(xue)(xue)(xue)等。金(jin)剛(gang)(gang)石(shi)車削(xue)(xue)(xue)(xue)(xue)和金(jin)剛(gang)(gang)石(shi)鏜削(xue)(xue)(xue)(xue)(xue)都是利(li)(li)用(yong)聚晶金(jin)剛(gang)(gang)石(shi)刀具(ju)進行(xing)切削(xue)(xue)(xue)(xue)(xue)，珩磨(mo)(mo)(mo)(mo)是采(cai)用(yong)鑲嵌在珩磨(mo)(mo)(mo)(mo)頭上的(de)(de)(de)(de)油(you)石(shi)(又稱珩磨(mo)(mo)(mo)(mo)條)主要對(dui)孔進行(xing)精(jing)(jing)(jing)(jing)整加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。研(yan)(yan)磨(mo)(mo)(mo)(mo)是利(li)(li)用(yong)涂敷或壓嵌在研(yan)(yan)具(ju)上的(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)料顆粒(li)，通過研(yan)(yan)具(ju)與(yu)工(gong)(gong)(gong)(gong)(gong)件(jian)在一(yi)定壓力(li)下的(de)(de)(de)(de)相對(dui)運動(dong)對(dui)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)表面(mian)(mian)(mian)進行(xing)的(de)(de)(de)(de)精(jing)(jing)(jing)(jing)整加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。超(chao)精(jing)(jing)(jing)(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)是采(cai)用(yong)裝在振動(dong)頭上的(de)(de)(de)(de)細粒(li)度油(you)石(shi)對(dui)精(jing)(jing)(jing)(jing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)表面(mian)(mian)(mian)進行(xing)精(jing)(jing)(jing)(jing)整加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。砂(sha)帶(dai)磨(mo)(mo)(mo)(mo)削(xue)(xue)(xue)(xue)(xue)是采(cai)用(yong)高速(su)運轉的(de)(de)(de)(de)環形砂(sha)帶(dai)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)件(jian)表面(mian)(mian)(mian)的(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)削(xue)(xue)(xue)(xue)(xue)。鏡(jing)面(mian)(mian)(mian)磨(mo)(mo)(mo)(mo)削(xue)(xue)(xue)(xue)(xue)是達到最佳表面(mian)(mian)(mian)粗糙(cao)度的(de)(de)(de)(de)磨(mo)(mo)(mo)(mo)削(xue)(xue)(xue)(xue)(xue)方法。磨(mo)(mo)(mo)(mo)削(xue)(xue)(xue)(xue)(xue)后的(de)(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)件(jian)，表面(mian)(mian)(mian)粗糙(cao)度不大于0.01微米，光(guang)如鏡(jing)面(mian)(mian)(mian)，可以清晰成像。精(jing)(jing)(jing)(jing)密加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)在制造(zao)業(ye)中處于十分重要的(de)(de)(de)(de)地位，常(chang)用(yong)于精(jing)(jing)(jing)(jing)密絲杠、精(jing)(jing)(jing)(jing)密齒輪、精(jing)(jing)(jing)(jing)密蝸輪、精(jing)(jing)(jing)(jing)密導軌和精(jing)(jing)(jing)(jing)密軸承等關鍵零件(jian)的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)。

　　熱強度高

　　使用溫度(du)(du)比(bi)鋁(lv)(lv)合(he)金(jin)高幾百度(du)(du)，在中等(deng)溫度(du)(du)下(xia)仍(reng)能保持所要求的強度(du)(du),可在450～500℃的溫度(du)(du)下(xia)長期工作(zuo)這兩類鈦合(he)金(jin)在150℃～500℃范圍內仍(reng)有很高的比(bi)強度(du)(du)，而鋁(lv)(lv)合(he)金(jin)在150℃時比(bi)強度(du)(du)明(ming)顯(xian)下(xia)降。鈦合(he)金(jin)的工作(zuo)溫度(du)(du)可達500℃，鋁(lv)(lv)合(he)金(jin)則在200℃以下(xia)。

　　抗蝕性好

　　鈦合金在(zai)潮濕的(de)大氣和海(hai)水(shui)介(jie)(jie)質中工作(zuo)，其(qi)抗蝕(shi)(shi)性遠優于不銹鋼;對點(dian)蝕(shi)(shi)、酸蝕(shi)(shi)、應力腐蝕(shi)(shi)的(de)抵抗力特(te)別強(qiang);對堿、氯(lv)化物、氯(lv)的(de)有(you)機(ji)物品、硝酸、硫酸等有(you)優良(liang)的(de)抗腐蝕(shi)(shi)能力。但鈦對具有(you)還原(yuan)性氧及鉻鹽介(jie)(jie)質的(de)抗蝕(shi)(shi)性差。

　　低溫性能好

　　鈦合金(jin)在低(di)溫和超低(di)溫下(xia)(xia)，仍能保持其(qi)力(li)學性(xing)(xing)能。低(di)溫性(xing)(xing)能好(hao)，間(jian)隙元素極低(di)的(de)(de)鈦合金(jin)，如TA7，在-253℃下(xia)(xia)還能保持一定(ding)的(de)(de)塑性(xing)(xing)。因此，鈦合金(jin)也(ye)是一種(zhong)重要的(de)(de)低(di)溫結構材料(liao)。