Puas yog nws nyuaj los txhawb cov txheej txheem nyuaj los ntawm cov hlau 3D luam ntawv?

Ib, Qhov xav tau kev txhawb nqa: ob -edged ntaj ntawm kev luam ntawv nrog cov qauv nyuaj
Hauv hlau 3D luam ntawv, cov qauv txhawb nqa ua haujlwm rau ntau lub hom phiaj:
Kev txhawb nqa tshuab: txhawm rau khaws cov kev tsim kho kom tsis txhob poob lossis hloov cov duab thaum lawv tau luam tawm vim yog lub ntiajteb txawj nqus lossis cua sov. Piv txwv li, yog hais tias lub dav hlau cav hniav tsis muaj kev txhawb nqa, lawv cov phab ntsa nyias tuaj yeem khoov thaum lub sij hawm solidification ntawm lub pas dej ua ke.
Thermal tswj: Tsiv cua sov los ntawm kev txhawb nqa cov qauv kom tsis txhob muaj qhov sib txawv ntawm qhov kub thiab txias los ntawm qhov loj heev thiab kom tsis txhob muaj kev ntxhov siab los ntawm kev tsim. Piv txwv li, thaum luam ntawv titanium alloy implants, kev txhawb nqa tuaj yeem nres microcracks los ntawm kev sib sau thaum cov khoom txias heev.
Kev ruaj ntseg ntawm cov txheej txheem: Nyob rau hauv hmoov txaj melting tshuab, lub moj khaum kev txhawb nqa kom cov khoom nyob rau hauv qhov chaw kom lawv tsis txav li cov hmoov ntws los yog cov scraper hits lawv.
Tab sis kuj tseem muaj teeb meem loj nrog kev txhawb nqa cov qauv:
Cov ntaub ntawv pov tseg: Tus nqi ntawm cov khoom txhawb nqa tuaj yeem ua 30% mus rau 50% ntawm qhov hnyav tag nrho ntawm cov khoom, thiab nws nyuaj rau rov ua dua tag nrho.
Tus nqi ntawm kev tshaj tawm- kev ua haujlwm: Tshem tawm cov kev txhawb nqa nrog cov tshuab siv ntau txoj haujlwm thiab tuaj yeem ua rau cov khoom puas. Piv txwv li, kev kho mob cog yuav tsum tau polished ntau tom qab lawv tau teeb tsa kom ua tiav cov qauv biocompatibility.
Cov kev txwv hauv kev tsim: Cov txheej txheem kev txhawb nqa ib txwm xav tau lub kaum sab xis ntawm ntau dua 45 degree, uas ua rau nws nyuaj rau siv cov qauv tshiab xws li cov txheej txheem sab hauv thiab cov txheej txheem lattice.
2, Kev Sib Tw Txuj Ci: Kev sim cov yam ntxwv ntawm cov khoom siv thiab cov txheej txheem nyuaj tib lub sijhawm
1. Qhov sib txawv ntawm cov yam ntxwv ntawm cov ntaub ntawv ua rau nws nyuaj rau kev txhawb nqa
Lub cev thiab tshuaj zoo ntawm ntau yam ntaub ntawv hlau cuam tshuam rau txoj kev txhawb nqa:
Titanium alloy yog heev nquag thiab reacts nkag nrog oxygen thiab nitrogen los tsim ib txheej tawv, nkig. Nws yuav tsum tau tiv thaiv los ntawm inert gas thaum nws tsis siv. Piv txwv li, thaum txhawb Ti6Al4V cov khoom luam tawm, cov pa oxygen yuav tsum tau khaws cia qis dua 50ppm, lossis lwm yam lawv tuaj yeem ntes hluav taws ntawm lawv tus kheej.
Stainless hlau tiv taus xeb heev thiab tej zaum yuav raug ntxuav los ntawm kev siv tshuaj los yog lub siab - lub dav hlau dej siab. Thaum koj tsau 316L stainless hlau hniav hauv alkaline ntxuav kev daws teeb meem thiab siv ultrasonic tu, koj tuaj yeem tshem tau 99.5% ntawm cov hmoov.
Aluminium alloy muaj qhov qis melting point thiab zoo li yuav hloov cov duab thaum ntxuav nrog kev vibration tu txoj kev. Txhawm rau tshem tawm kev txhawb nqa los ntawm AlSi10Mg luam tawm, koj yuav tsum tau ntiav CO₂ daus dav hlau thev naus laus zis, uas ua haujlwm los ntawm kev ntaus cov khoom ntawm qhov kub ntawm -78.5℃yam tsis ua rau thermal stress concentration.
2. Ua cov qauv tsim kom yooj yim kom ua tau yam nyuaj
Complex architectures xav tau kev thov siab rau cov txheej txheem tsis txhawb nqa:
Cov txheej txheem ntxeem tau: Cov txheej ntxeem tau hauv orthopedic implants feem ntau yog tsawg dua 3 hli tuab, thiab cov hmoov seem yuav tsum tsawg dua 0.1 mg / cm². Ib lub tuam txhab kho mob siv lub tshuab nqus tsev adsorption thiab 360-degree rotating fixtures kom tau cov hmoov rov qab ntawm 98.7%.
Nyias- cov qauv phab ntsa: Yog tias phab ntsa tuab ntawm lub tshuab dav hlau dav hlau dav dav tsawg dua lossis sib npaug li 1 hli, nws xav tau kev tswj hwm kev ntxhov siab kom nyob hauv qhov chaw. GE ua haujlwm qis-kub cov hmoov tshem tawm (txias nrog kua nitrogen ntawm -196 degree) nrog rau kev kho hnub nyoog kom txo qis kev ntxhov siab kom tsawg dua 50MPa thiab nres cov kab nrib pleb los ntawm kev sib sau.
Cov qauv ntawm cov kab noj hniav sab hauv: Txhawm rau tshem tawm cov kab noj hniav sab hauv ntawm lub tshuab hluav taws xob, cov cuab yeej tshwj xeeb yuav tsum tau ua. Ib qho tshwj xeeb turbine disc qauv muaj cov tub ntxhais tshem tawm uas siv lub zog centrifugal los thawb cov hmoov tawm thiab laminar airflow (0.5m / s) kom tshuab raws li qhov chaw, uas ua tau raws li cov qauv kev huv huv rau lub chamber sab hauv.
3, Cov Tswv Yim Tshiab: Los ntawm kev ua cov txheej txheem zoo dua rau kev tsim ntse
1. Unsupervised printing technology tau nyob ib ncig ntawm cov kev txwv ntawm ib txwm luam ntawv.
Qee cov txheej txheem nyuaj tau tuaj yeem luam tawm yam tsis muaj kev txhawb nqa los ntawm kev kho txoj kev luam ntawv thiab cov yam ntxwv ntawm cov hmoov:
Lub kaum sab xis me me uas tsis muaj kev txhawb nqa: LiM-X260A cov cuab yeej ua los ntawm Leiming Laser tuaj yeem luam titanium alloy Cheebtsam uas yog 5℃mus rau 35℃tshem tawm los ntawm optimizing lub zog laser ceev thiab scanning txoj kev. Cov khoom muaj qhov ntom ntom ntawm 99.9%.
Kev txawj ntse txoj kev npaj: Pab pawg tactical ntawm Tuam Tshoj Academy of Launch Vehicle Technology hloov cov hmoov particle loj tis (D50=45 μ m) thiab laser scanning ceev (800mm / s). Lawv kuj tau siv kev simulation kev ntxhov siab los ua kom tsis muaj kev txhawb nqa luam ntawv ntawm cov foob pob hluav taws nyuaj hauv tsev ua tau. Qhov tseeb saum npoo tau mus txog qib millimeter, thiab qhov xav tau rau kev tshaj tawm - kev ua haujlwm raug txiav los ntawm 60%.
2. Cov qauv kev txhawb nqa txhim kho ua rau nws yooj yim rau kev tshem tawm.
Kev them nyiaj yug Dissolvable: Arizona State University tau los nrog txoj hauv kev los tshem tawm cov kev txhawb nqa hluav taws xob los ntawm kev luam ntawv cov pa roj carbon steel ntawm stainless hlau qhov chaw thiab siv cov tshuaj nitric acid los xaiv cov pa roj carbon monoxide. Lub 7 hli tuab kev txhawb nqa tuaj yeem raug tshem tawm tag nrho hauv tsawg dua 6 teev yam tsis muaj kev puas tsuaj rau daim duab.
Kev tsim ntawm lub pob txha pob txha: Ntxiv hourglass - zoo li lub pob txha pob txha taw rau cov qauv kev txhawb nqa, thiab siv ua ntej - teeb tsa qhov chaw muaj kev ntxhov siab los tswj cov pob txha. Piv txwv li, ib feem ntawm lub tsheb muaj tus hniav -zoo li tus txhawb nqa uas tuaj yeem tshem tau yooj yim nrog tsuas yog me ntsis quab yuam. Qhov kev puas tsuaj rau saum npoo yog tsawg dua 0.05mm tob.
3. Simulation optimization ua rau kev txhawb nqa tsawg tsim nyog.
Cov txheej txheem simulation cov cuab yeej, zoo li VoxelDance Engineering, tuaj yeem txheeb xyuas seb qhov kev ntxhov siab kub yuav kis tau li cas thaum luam ntawv thiab ua kom muaj kev txhawb nqa zoo dua. Piv txwv li, lub kaw impeller qauv txiav cov nyiaj them yug xav tau los ntawm 60% los ntawm kev simulation, txiav lub sij hawm luam ntawv mus rau 50 teev, thiab txo txoj kev pheej hmoo ntawm kev sib tsoo scraper.