Gr4 titanium alloy yog qhov zoo tshaj plaws cov khoom siv rau Aerospace engineering vim tias nws lub zog qis, zoo corrosion, zoo corrosion tsis kam thiab cov txheej txheem zoo. Hauv ntau daim ntawv thov aerospace, titanium thiab nws cov alloys tau hloov cov tsoos aluminium alloys. Niaj hnub no, kev lag luam aerospace siv kwv yees li 42% ntawm lub ntiaj teb tag nrho cov khoom tsim ntawm titanium, thiab kev thov rau titanium yuav tsum tau nce ntxiv ntawm tus lej ob npaug ntawm tam sim no thiab 2010. Cov tiam tshiab ntawm cov dav hlau yuav tsum tau ua kom zoo dua ntawm kev ua tau zoo. muab los ntawm titanium alloys, thiab ob qho tib si kev lag luam thiab cov tub rog dav hlau lag luam yog tsav kev thov rau titanium alloys. Cov qauv tshiab xws li Boeing 787, Airbus A380, F-22 Raptor, thiab F-35 Joint Strike Fighter (tseem hu ua Lightning II) txhua tus siv ntau cov titanium alloys. Qhov zoo ntawm titanium alloy cov ntaub ntawv titanium alloys muaj lub zog siab, siab tawg toughness, nrog rau zoo corrosion kuj thiab weldability. Raws li lub dav hlau fuselage tau nce siv cov qauv sib xyaw, qhov kev faib ua feem ntawm titanium-raws li cov ntaub ntawv siv rau lub fuselage kuj yuav nce ntxiv, vim tias kev sib xyaw ntawm titanium thiab cov ntaub ntawv sib xyaw yog qhov zoo tshaj rau txhuas alloys. Piv txwv li, piv nrog aluminium alloys, titanium alloys tuaj yeem ua rau lub neej ntawm cov qauv fuselage los ntawm 60%.
Titanium alloys feem ntau suav hais tias nyuaj rau tshuab vim tias lawv nyuaj rau tshuab ntau dua li cov hlau alloy. Cov hlau tshem tawm tus nqi ntawm ib tug raug titanium alloy tsuas yog hais txog 25% ntawm cov feem ntau cov hlau los yog stainless hlau, yog li machining ib feem ntawm titanium alloy yuav siv sij hawm li plaub zaug ntev npaum li machining ib feem steel. Txhawm rau kom ua tau raws li qhov xav tau loj hlob ntawm titanium alloy machining hauv kev lag luam aerospace, cov tuam txhab yuav tsum tau nce lawv lub peev xwm ntau lawm thiab yog li yuav tsum tau nkag siab zoo dua cov txiaj ntsig ntawm titanium alloy machining cov tswv yim. Hom machining ntawm titanium workpieces pib nrog forging thiab txuas ntxiv mus txog 80% ntawm cov khoom raug tshem tawm kom tau txais cov duab kawg.
Nrog rau kev loj hlob sai ntawm kev lag luam aerospace, cov tuam txhab tsim khoom tau dhau los, thiab qhov xav tau ntau ntxiv rau kev ua haujlwm ntawm titanium alloy workpieces vim kev ua haujlwm tsis zoo tau ua rau muaj kev cuam tshuam tseem ceeb ntawm titanium alloy machining peev xwm. Qee cov thawj coj hauv aerospace tseem tau nug pej xeem seb puas muaj peev xwm ua tau zoo tuaj yeem tswj tau tag nrho cov tshiab titanium alloy workpieces. Txij li cov workpieces no feem ntau yog ua los ntawm cov alloys tshiab, kev hloov hauv machining txoj kev thiab cov cuab yeej cuab tam yuav tsum tau. Cov titanium alloy Ti-6Al-4V titanium alloy muaj nyob rau hauv peb hom qauv sib txawv: titanium alloy, ab titanium alloy thiab b titanium alloy. Kev lag luam ntshiab titanium thiab a-titanium alloys tsis tuaj yeem kho cua sov tab sis feem ntau muaj qhov zoo weldability; ab-titanium alloys yog kub kho tau thiab feem ntau kuj yog weldable; thiab b- thiab quasi-b-titanium alloys yog tag nrho cov cua sov kho tau thiab kuj feem ntau weldable.
Titanium alloy qhov chaw ua nyob rau hauv lub machinery manufacturing kev lag luam occupies ib tug tseem ceeb txoj hauj lwm, titanium alloy cov ntaub ntawv txiav ua tau tam sim no ua technology teeb meem. Txhawm rau kom ua tau raws li qhov xav tau loj hlob ntawm titanium alloy workpieces rau aerospace, Tuam Tshoj txoj kev titanium alloy txiav yuav tsum ua kom tau zoo. Raws li cov khoom siv hauv tsev, cov cuab yeej siv tshuab thiab kev tswj hwm, ntxiv dag zog rau kev ua kom zoo ntawm titanium alloy cov ntaub ntawv machining txheej txheem, xaiv qhov kev xaiv ntawm machining tsis, thiab kev txhim kho cov machining efficiency thiab cov khoom zoo yog qhov tseem ceeb los txhawb txoj kev loj hlob ntawm domestic titanium alloy. kev lag luam thiab aerospace kev lag luam. Cov kab noj hniav sab hauv cylindrical nto xov tho txawv cov cuab yeej tsim hauv daim ntawv muaj cov qauv yooj yim thiab yooj yim rau kev tsim thiab siv, uas daws cov txheej txheem machining teeb meem ntawm pob nplhaib ncej qhov chaw.
