Nyob rau hauv cov txheej txheem forging ntawm titanium alloys, tus yam ntxwv qauv ntawm lub billet, encompassing tshuaj muaj pes tsawg leeg, impurity tis, xaiv ntawm thermal ua tsis, thiab tom qab kev kho cua sov cov txheej txheem, ho cuam tshuam lub kawg microstructure thiab txhua yam khoom ntawm forgings.
Kev xaiv ntawm dov qhov kub yog qhov tseem ceeb determinant. Qhov zoo tshaj plaws dov qhov kub thiab txias, kom ntseeg tau tias muaj ntau yam deformation ntawm lub billet thaum lub sij hawm forging, zoo txo cov teebmeem ntawm tus qauv qub. Txawm li cas los xij, kev ua tiav cov deformation siab no ua rau muaj teeb meem hauv kev lag luam. Raws li tus nqi deformation txo qis, qhov cuam tshuam tsis zoo ntawm cov qauv qub dhau los ua kom pom tseeb, ua rau muaj kev hem thawj rau forging zoo.
Rau titanium thiab titanium alloy ingots, tus qauv qub feem ntau nthuav tawm cov nplej ntxhib thiab txwv cov txheej txheem plasticity. Cov txheej txheem pre-forging cua sov dhau los ua qhov tseem ceeb hauv ameliorating tus mob no. Cua sov lub ingot saum toj no transformation point thiab ua kom tiav cov thawj deformation nyob rau hauv lub theem tau ua pov thawj zoo. Nyob rau hauv lub sij hawm, cov khoom deformation kuj txo qis thaum plasticity drastic nce, tso cai rau kom meej meej fragmentation ntawm lub cam khwb cia qauv, li no pab tau ntau lawm efficiency thiab txo lub zog noj.
Kev tshawb fawb ntxiv thiab kev xyaum qhia tau hais tias thaum tag nrho cov deformation ntawm lub ingot nce mus txog 70% mus rau 80%, kev hloov pauv tseem ceeb tshwm sim hauv microstructure ntawm forging. Coarse nplej yog refined, tsim ib tug uniform thiab zoo fibrous qauv. Qhov kev hloov pauv no tsis tsuas yog txhim kho cov khoom siv lub zog tensile tab sis kuj tseem txhim kho nws cov ductility, ua rau lub forging ntau dua thiab ruaj khov thaum raug rau sab nraud.
Tsis tas li ntawd, kev xaiv ntawm dov kub yuav tsum xav txog qhov tshwj xeeb muaj pes tsawg leeg thiab cov ntsiab lus impurity ntawm cov khoom. Qhov sib txawv ntawm titanium alloy compositions thiab impurity theem muaj qhov sib txawv ntawm qhov kub thiab txias xaiv thiab cov txheej txheem evolution thaum lub sij hawm forging. Yog li ntawd, kev ua haujlwm zoo yuav tsum tsim kom muaj qhov sib txawv ntawm qhov kub thiab txias ntawm cov txheej txheem forging raws li cov khoom siv tshwj xeeb titanium alloy los xyuas kom meej qhov zoo ntawm forging zoo thiab kev ua tau zoo.
Nyob rau hauv xaus, dov kub exerts ib tug muaj kev cuam tshuam rau lub microstructure thiab cov khoom ntawm titanium forgings. Kev tswj nruj ntawm qhov kub thiab txias, kev ua kom zoo ntawm lub billet tus qauv qub, thiab kev tsim cov txheej txheem forging rational thiab cov txheej txheem kho cua sov yog qhov tseem ceeb los xyuas kom meej forging zoo ntawm nws lub ncov.
