Dab tsi yog qhov txawv ntawm titanium forging thiab zoo tib yam forging?
Hauv kev tsim khoom siab- kawg, titanium thiab titanium alloys, nrog rau lawv lub zog tshwj xeeb, corrosion kuj, thiab biocompatibility, tau dhau los ua cov ntaub ntawv tseem ceeb rau kev lag luam xws li aerospace, cov cuab yeej kho mob, thiab cov khoom siv tshuaj. Txawm li cas los xij, cov txheej txheem forging ntawm titanium yog qhov nyuaj dua li cov hlau zoo tib yam, thiab nws cov khoom siv lub cev tshwj xeeb txhais tau hais tias cov txheej txheem forging ib txwm tsis txaus los ua kom tau raws li qhov xav tau ntawm siab -kawg daim ntawv thov. Qhov tseem ceeb sib txawv ntawm titanium forging thiab zoo tib yam forging yog tsis tsuas yog nyob rau hauv lub meej tswj ntawm cov txheej txheem tsis tab sis kuj nyob rau hauv tag nrho cov saw ntawm cov khoom optimization, cov khoom xaiv, thiab ntau lawm efficiency txhim kho.
Qhov nyuaj ntawm forging titanium stems feem ntau los ntawm nws lub cev muaj zog. Lub deformation tsis kam ntawm titanium alloys ntawm forging kub yog ntau tshaj li ob zaug ntawm cov zoo tib yam hlau alloy, thiab nws yog heev rhiab heev rau qhov kub thiab txias fluctuations - lub deformation kuj ntawm TC4 alloy yuav txawv li ntawm 300 MPa ntawm 800℃thiab 950 degree. Cov yam ntxwv no ua rau cov khoom siv sib xyaw ua ke tsis txaus: tsoos rauj forging xav tau ntau zaus siab dua chav tsev siab dua li xovxwm forging, ua rau muaj zog siv zog ntau dua; thaum titanium lub thermal conductivity tsuas yog 1/5 ntawm cov hlau, uas ua rau qhov kub ceev heev ntawm lub forged billet tom qab tawm hauv qhov cub. Yog tias kev ua haujlwm qeeb, qhov sib txawv sab hauv thiab sab nraud tuaj yeem tshaj 200 degree, ncaj qha ua rau tawg lossis tsis sib xws microstructure. Piv txwv li, nyob rau hauv ib tug tej yam aero - cav hniav forging project, pa forging ua rau 30% ntawm cov billets raug muab pov tseg vim kub poob, thaum isothermal forging nce yield mus rau 92%.
Kev tswj nruj ntawm cov txheej txheem tsis yog qhov nyuaj ntawm titanium forging. Pa forging feem ntau yog ua tiav saum toj 800 degree, tab sis titanium alloys yuav tsum muaj qhov kub thiab txias nyob ntawm qib: + alloys yuav tsum tau forged 30-50℃hauv qab theem hloov kub kom tau txais ib qho equiaxed microstructure; Txawm hais tias cov alloys yuav tsum tau forged nyob rau hauv theem cheeb tsam, qhov kub thiab txias heev yuav ua rau cov qauv Widmanstätten, ua rau txo qis hauv chav tsev kub plasticity. Lub tuam txhab khoom siv kho mob, thaum tsim cov pob qij txha, txhim kho tag nrho cov khoom siv los ntawm 15% thiab txuas ntxiv lub neej qaug zog mus rau 2.3 npaug ntawm cov txheej txheem ib txwm siv los ntawm kev siv ze rau - forging (ntawm theem hloov pauv kub ntawm 10{12}}15℃). Tsis tas li ntawd, cov kab mob sib kis cuam tshuam rau cov yas ntawm titanium: isothermal forging yuav tsum tswj cov kab mob qis dua 10⁻³s⁻¹ kom cov khoom nyob rau hauv lub xeev superplastic, yog li ua kom meej kev tsim cov txheej txheem nyuaj-tom qab siv cov txheej txheem no rau nyias-walled alarm ntawm ib lub dav hlau, lub web thickness 4 hli los ntawm 4 hli. txo.
Txhim kho cov cuab yeej thiab cov pwm yog qhov tseem ceeb rau kev kov yeej cov fwj hauv titanium forging. Lub forging pwm tsuas yog yuav tsum tau preheated rau 200-250 degree, thaum isothermal forging ntawm titanium alloys yuav tsum tau ib txhij cua sov ntawm pwm mus rau 850-1000 degree, thiab siv cov ntaub ntawv tshwj xeeb xws li molybdenum-raws li alloys}.temperature siab {{9}. Nyob rau hauv ib txoj kab ntau lawm rau ib qho tseem ceeb bladed disk ntawm lub cav, lub zog tensile ntawm ib txwm npib tsib xee{13}}raws li pwm txo los ntawm 60% ntawm 850℃; Tom qab hloov mus rau molybdenum-raws li pwm, lub neej ntev yog 5 zaug. Lub caij no, titanium forging yuav tsum muaj qhov ntsuas kub ntawm digital tswj kom ntsuas qhov kub thiab txias tsis pub dhau ± 5℃- ib qho kev ua haujlwm hauv lub dav hlau siv cov cuab yeej siv no los txhim kho cov qoob loo zoo sib xws los ntawm 30% thiab txo qis kev ntxhov siab los ntawm 80%.
Los ntawm kev pom ntawm daim ntawv thov, cov pa forging feem ntau ua tau raws li qhov xav tau ntawm qhov chaw nrog cov duab yooj yim thiab cov kev xav tau tsawg tsawg, xws li cov yeeb nkab flanges; thaum titanium forging tsom rau siab -tus nqi- ntxiv teb. Hauv thaj chaw aerospace, isothermal forging tuaj yeem tsim cov cav ntoo nrog qhov siab tav - rau - dav piv ntawm 23: 1, qhov zoo leap piv rau 6: 1 ntawm cov pa tuag forging; nyob rau hauv cov khoom siv kho mob, superplastic forging tau ua kom cov pob qij txha pob txha tawg los ntawm qhov tsawg kawg nkaus phab ntsa thickness ntawm 1.5 hli, mus txog qhov kev txwv theoretical. Lub chaw tsim khoom siv hluav taws xob nuclear, los ntawm titanium precision forging, txo qhov roughness ntawm valve sealing qhov chaw los ntawm Ra3.2μm rau Ra0.8μm, txhim kho corrosion kuj los ntawm peb theem.
Qhov sib txawv ntawm titanium forging thiab pa forging yog qhov tseem ceeb ntawm kev sib sib zog nqus ntawm cov ntaub ntawv science thiab engineering technology. Los ntawm kev tswj qhov kub thiab txias mus rau qhov hloov pauv hloov pauv hloov pauv hloov pauv, los ntawm cov ntaub ntawv pwm tshiab mus rau kev siv cov tshuab digital, txhua qhov kev siv thev naus laus zis tau rov txhais cov ciaj ciam ntawm titanium alloys. Nrog rau qhov tshwm sim ntawm cov ntaub ntawv tshiab xws li 3D- luam tawm titanium alloy structural Cheebtsam thiab titanium-raws li composites, forging txheej txheem yog hloov mus rau ntau dua precision thiab efficiency. Nyob rau hauv lub neej yav tom ntej, titanium forging thev naus laus zis yuav txuas ntxiv tsav siab -kawg tsim rau lub teeb yuag, lub neej ntev, thiab muaj kev ntseeg siab, muab cov khoom muaj zog txhawb rau tib neeg kev tshawb nrhiav hauv hiav txwv tob thiab qhov tob tob.
