Puas yog hlau 3D luam ntawv ncaj qha tsim pwm kab noj hniav?

Ib, Technical feasibility: Tsiv ntawm qhov chaw kuaj mus rau cov kab tsim khoom
1. Ua tiav cov txheej txheem ntawm cov khoom siv
Hlau 3D luam ntawv tam sim no tuaj yeem ua haujlwm nrog txhua yam ntaub ntawv uas feem ntau siv los ua pwm. Piv txwv li, laser hmoov txaj melting (LPBF) thev naus laus zis tuaj yeem luam tawm cov khoom pwm xws li H13 cov cuab yeej hlau, P20 pwm hlau, thiab 1.2709 martensitic steel. Los ntawm kev nplua - kho cov txheej txheem kev teeb tsa, cov kev ntsuas tseem ceeb xws li hardness, toughness, thiab hnav tsis kam ntawm cov khoom luam tawm tau sib tw lossis dhau qhov tshwj xeeb rau cov khoom siv forging. Piv txwv li, ib lub tuam txhab siv LPBF thev naus laus zis los ua pwm qhov tawm ntawm H13 hlau. Lub hardness tau nce mus txog 52HRC tom qab kev kho cua sov, thiab lub neej thermal qaug zog yog 40% ntev dua nrog kev ua haujlwm. Nws tuaj yeem tswj tau ntau dua 500,000 lub voj voog ntawm kev txhaj tshuaj molding.
Hlau 3D luam ntawv tau pom tias muaj cov txiaj ntsig tshwj xeeb hauv thaj tsam ntawm cov ntaub ntawv tshwj xeeb. Vim tias tib neeg xav tau cov ntaub ntawv uas muaj qhov ua tau zoo thiab tiv taus corrosion, lub tuam txhab tsim cov txheej txheem tooj liab -raws li alloy luam ntawv. Cov txheej txheem no muaj cov thermal conductivity coefficient txog li 380W / (m · K), uas yog 25% siab dua li cov tshuaj beryllium tooj liab pwm. Vim tias tib neeg xav tau cov ntaub ntawv uas hnyav, aluminium alloy thiab titanium alloy luam ntawv thev naus laus zis tuaj yeem txo pwm qhov hnyav los ntawm 30% mus rau 50% thaum ua kom lub zog ntawm cov qauv.
2. Tsis muaj kev txwv kev nce qib hauv cov txheej txheem nyuaj
Kev tsim pwm ib txwm raug txwv los ntawm geometric txwv ntawm kev rho tawm. Txhawm rau ua cov txheej txheem nyuaj, cov txheej txheem xws li kev sib cais, sib cais, thiab vuam yuav tsum tau siv, uas ua rau cov pwm tsis raug thiab ua rau lawv lub neej luv. Hlau 3D luam ntawv tuaj yeem ua rau cov duab nyuaj tam sim ntawd, tshwj xeeb tshaj yog cov tshiab xws li cov cua txias raws, cov hlau ua pa, thiab dot matrix filling.
Piv txwv li, txoj kev drilling ib txwm tuaj yeem ua txoj kab ncaj nraim lossis yooj yim - zoo li cov kab dej. Hauv qhov sib piv, 3D luam ntawv tuaj yeem ua rau cov dej tsis sib xws xws li kauv, ceg ntoo, thiab cov nplooj nplooj nplooj biomimetic, uas tuaj yeem txhim kho kev ua kom txias ntau dua 40%. Tom qab siv topology optimized kwj dej tsim rau cov pwm rau cov hniav zoo nkauj rau lub tsheb qhov rooj ncej, lub sij hawm nws siv los ua ib daim mus ntawm 120 vib nas this mus rau 75 vib nas this, thiab tus nqi tawm los ntawm 89% mus rau 98%. Cov tuam txhab uas ua rau cov hlau ua pa tau muaj peev xwm tswj tau qhov tseeb ntawm 0.04mm aperture siv ntxeem tau txheej tshuab luam ntawv. Qhov no tau tripled qhov ua tau zoo ntawm cov pwm thiab cov teeb meem ruaj khov xws li cov kab thiab cov npuas uas tshwm sim thaum cov roj nkag mus.
3. Kev txhim kho qhov zoo ntawm qhov chaw thiab qhov tseeb
Thaum ntxov hlau 3D luam ntawv muaj ib lub sij hawm nyuaj ua tau raws li qhov siab -precision xav tau ntawm molding vim lub interlayer bonding quab yuam tsis muaj zog txaus thiab nto yog ntxhib heev. Tab sis qhov teeb meem no tau raug kho ua tsaug rau kev nce qib. Nyob rau lub sijhawm no, siab -kawg hlau 3D tshuab luam ntawv tuaj yeem ua cov khoom nrog qhov ntsuas qhov tseeb ntawm ± 0.05mm thiab qhov roughness ntawm Ra tsawg dua lossis sib npaug li 1.6 μ m. Thaum siv polishing, sandblasting, thiab lwm cov kauj ruam, nws tuaj yeem ua rau saum npoo zoo li daim iav.
Piv txwv li, Mantle's TrueShape thev naus laus zis siv kev sib xyaw ua ke ntawm "3-axis CNC machining + kos duab thiab luam ntawv + software tsim" los ua pwm kab noj hniav kom raug. Cov txheej txheem no luam tawm H13 steel pwm kab noj hniav nrog qhov roughness Ra ntawm tsuas yog 0.8 μ m, uas txhais tau tias nws tuaj yeem siv rau kev txhaj tshuaj siab gloss molding tam sim ntawd yam tsis tas yuav polished ua ntej. Cov cuab yeej no tseem tso cai rau ntau yam - cov ntaub ntawv sib xyaw luam ntawv, uas tuaj yeem muab cov coatings hnav-tiv taus rau ntawm pwm qhov chaw. Qhov no tuaj yeem ua rau pwm ntev dua peb zaug ntev dua li cov txheej txheem ib txwm muaj.
2, Kev xyaum ua lag luam: Los ntawm kev sim cov tswv yim los siv lawv ntawm qhov loj
1. Automotive pwm: kev hloov pauv ob zaug hauv cov nqi thiab kev ua haujlwm zoo
Hlau 3D luam ntawv tau tsiv dhau lub tswv yim pov thawj theem mus rau loj - nplai siv nyob rau hauv lub cheeb tsam ntawm lub tsheb pwm. Ib lub tuam txhab ua cov tsheb ntiav LPBF thev naus laus zis los ua pwm rau lub tog raj kheej taub hau. Lub voj voog txhaj tshuaj molding yog 37.2% luv dua thiab tus nqi ntawm txhua yam yog 22% qis dua thaum tsim cov dej txias ua kom zoo dua. Dab tsi yog qhov tseem ceeb tshaj yog tias cov tshuab no tuaj yeem "ib- lub sijhawm pwm" pwm yam tsis tas yuav tos kom pwm qhib. Qhov no txiav lub sijhawm nws siv los tsim cov khoom tshiab los ntawm 6 lub hlis mus rau 2 lub hlis thiab ua kom lub sijhawm tshuaj tiv thaiv hauv kev ua lag luam los ntawm ntau.
Hlau 3D luam ntawv kuj ua haujlwm zoo rau kev ua pwm pwm. Ib lub tuam txhab tshiab lub zog tsheb ua lub roj teeb tais pwm siv aluminium alloy luam ntawv thev naus laus zis. Cov pwm qhov hnyav yog txiav los ntawm 45%, thiab lub zog siv rau kev txhaj tshuaj molding yog txiav los ntawm 18%, tag nrho thaum khaws cov pwm lub zog. Cov pwm tau dhau los ntawm 200,000 txhaj tshuaj molding cycles, thiab nws ua haujlwm zoo thiab muaj kev vam meej.
2. Cov pwm kho mob: txoj hauv kev zoo tshaj plaws los ua cov khoom raws nraim li koj xav tau
Cov kws kho mob xav tau cov pwm uas tshwj xeeb thiab tus kheej, thiab hlau 3D luam ntawv yog qhov zoo tshaj plaws los ua qhov ntawd. Ib lub tuam txhab uas ua pwm rau orthopedic implants siv cobalt chromium alloy luam ntawv thev naus laus zis los ua pwm uas yog "tus neeg mob tshwj xeeb." Tus qauv digital ntawm pwm yog ua tam sim ntawd los ntawm kev tau txais cov ntaub ntawv pob txha los ntawm tus neeg mob los ntawm CT scan. Cov pwm tuaj yeem raug rau hauv 0.02mm tom qab 3D luam ntawv, uas txhais tau hais tias nws haum rau tus neeg mob lub cev raws nraim. Cov txheej txheem no tau siv ntau dua 5000 cov txheej txheem, thiab nws tau txiav lub sijhawm nws siv rau cov neeg mob kom rov zoo tom qab kev phais los ntawm 30% thiab cov teeb meem muaj tsawg dua 1%.
Hlau 3D luam ntawv kuj muaj cov txiaj ntsig sib txawv hauv thaj tsam ntawm cov cuab yeej kho mob pwm. Ib lub tuam txhab ua lub plawv stent pwm siv titanium alloy printing tshuab. Qhov kev pheej hmoo ntawm thrombosis yog txo qis los ntawm kev ua kom cov pwm kab noj hniav ntawm qhov chaw kom du raws li qhov ua tau, uas txo cov stent qhov roughness Ra kom tsawg dua lossis sib npaug li 0.2 μm. Cov pwm no tau lees paub los ntawm FDA thiab yog thawj 3D - luam tawm lub plawv stent pwm hauv ntiaj teb.
3. Aerospace pwm: qhov zoo tshaj plaws ntawm kev siv siab - cov ntaub ntawv ua tau zoo
Kev lag luam dav hlau xav tau pwm uas tuaj yeem tswj tau qhov kub thiab txias, muaj zog heev, thiab lub teeb heev. Hlau 3D luam ntawv yog ib txoj hauv kev tshiab los ua qhov no. Ib lub tuam txhab ua pwm rau cov tshuab dav hlau siv cov nickel-raws li alloy luam ntawv thev naus laus zis. Cov pwm qhov hnyav yog txiav los ntawm 35% los ntawm kev ua kom zoo ntawm cov lattice filling qauv, thiab nws nyob ruaj khov ntawm qhov kub ntawm 1200 degree. Cov pwm tau dhau los ntawm 2000 lub voj voog kev ntsuas cua sov, thiab nws qhov kev ua tau zoo yog qhov zoo dua li cov pwm pwm pwm.
Hlau 3D luam ntawv kuj ua haujlwm zoo heev rau kev ua pwm rau qhov chaw satellite. Ib lub tuam txhab ua satellite bracket pwm siv aluminium alloy luam ntawv thev naus laus zis. Los ntawm kev siv topology optimization tsim, cov pwm 'qhov hnyav yog txiav los ntawm 60% thaum tseem muaj peev xwm tuav tau lawv qhov hnyav, uas txo tus nqi ntawm lub foob pob hluav taws. Cov pwm no tau siv los ua ntau tshaj 10 satellites, thiab nws ua haujlwm zoo thiab tsis tu ncua.