Cov cuab yeej siv lub mloog pob ntseg, lub qhov ncauj tiv thaiv, kev cog hniav, thiab lwm cov qauv tsim tshwj xeeb yog feem ntau cov khoom ntawm 3D luam ntawv. Cov qauv no feem ntau yog ua los ntawm vat photopolymerization—ib daim ntawv ntawm 3D luam ntawv uas siv cov qauv ntawm lub teeb los tsim thiab ua kom cov resin, ib txheej ntawm ib lub sij hawm.
Cov txheej txheem tseem suav nrog kev luam ntawv kev txhawb nqa los ntawm tib cov khoom los tuav cov khoom hauv qhov chaw raws li nws's luam tawm. Thaum cov khoom tiav lawm, cov kev txhawb nqa raug muab tshem tawm manually thiab feem ntau muab pov tseg raws li cov khoom siv tsis tau.
MIT engineers tau pom ib txoj hauv kev los hla cov kauj ruam kawg no, nyob rau hauv ib txoj hauv kev uas tuaj yeem ua kom ceev cov txheej txheem 3D-printing. Lawv tsim cov resin uas hloov mus ua ob yam sib txawv ntawm cov khib nyiab, nyob ntawm seb hom lub teeb uas ci rau nws: Ultraviolet lub teeb kho cov resin rau hauv cov khoom muaj zog, thaum pom lub teeb hloov tib yam resin rau hauv cov khoom uas yooj yim dissolvable nyob rau hauv tej yam hnyav.
Pab neeg no nthuav tawm cov resin tshiab ib txhij rau cov qauv ntawm UV teeb los tsim cov qauv ruaj khov, nrog rau cov qauv ntawm lub teeb pom kev los tsim cov qauv.'s txhawb. Tsis txhob ua tib zoo rhuav tshem cov kev txhawb nqa, lawv tsuas yog dipped cov ntaub ntawv luam tawm rau hauv kev daws teeb meem uas yaj cov kev txhawb nqa tam sim ntawd, nthuav tawm qhov ruaj khov, UV-luam tawm.
Cov kev txhawb nqa tuaj yeem yaj hauv ntau yam kev daws teeb meem zaub mov, suav nrog cov roj me me. Interestingly, cov kev txhawb nqa tuaj yeem yaj hauv cov kua dej tseem ceeb ntawm cov khoom qub, zoo li lub voos xwmfab dej khov hauv dej. Qhov no txhais tau hais tias cov khoom siv los luam cov qauv kev txhawb nqa tuaj yeem rov ua dua tshiab: Ib zaug luam tawm qauv's txhawb cov khoom dissolves, qhov sib tov tuaj yeem muab ncaj qha rov qab rau hauv cov khoom tshiab thiab siv los luam tawm cov txheej txheem tom ntej.—nrog rau lawv cov kev txhawb nqa dissolvable.
Cov kws tshawb fawb tau siv txoj hauv kev tshiab los luam cov qauv tsim, suav nrog cov tsheb ciav hlau ua haujlwm thiab cov lattices intricate.
Post lub sij hawm: Aug-21-2025
