Kev luam ntawv 3D yog ib qho thev naus laus zis zoo thiab siv tau ntau yam nrog ntau yam kev siv. Txawm li cas los xij, txog rau tam sim no, nws tsuas yog txwv rau ib yam xwb - qhov loj ntawm lub tshuab luam ntawv 3D.
Qhov no yuav hloov sai sai no. Ib pab neeg UC San Diego tau tsim ib lub ua npuas ncauj uas tuaj yeem nthuav dav txog li 40 npaug ntawm nws qhov loj thawj.
"Hauv kev tsim khoom niaj hnub no, qhov kev txwv dav dav yog tias cov khoom ua los ntawm kev siv cov txheej txheem tsim khoom ntxiv lossis rho tawm (xws li lathes, mills, lossis 3D printers) yuav tsum me dua li cov tshuab lawv tus kheej uas tsim lawv. machined, fastened, welded lossis glued los tsim cov qauv loj dua."
"Peb tau tsim cov khoom ua npuas ncauj prepolymer rau kev tsim cov khoom siv lithographic additive uas tuaj yeem nthuav dav tom qab luam ntawv los tsim cov khoom txog li 40 npaug ntawm qhov ntim thawj. Ntau cov qauv tsim lawv."
Ua ntej, pab neeg tau xaiv ib lub monomer uas yuav yog lub hauv paus ntawm cov polymer resin: 2-hydroxyethyl methacrylate. Tom qab ntawd lawv yuav tsum nrhiav qhov concentration zoo tshaj plaws ntawm photoinitiator nrog rau tus neeg sawv cev blowing kom haum rau kev sib xyaw nrog 2-hydroxyethyl methacrylate. Tom qab ntau qhov kev sim, pab neeg tau txiav txim siab rau tus neeg sawv cev blowing tsis yog ib txwm muaj uas feem ntau siv nrog polystyrene-based polymers.
Tom qab lawv tau txais cov photopolymer resin kawg, pab pawg 3D tau luam tawm qee cov qauv CAD yooj yim thiab ua kom sov txog 200 ° C rau kaum feeb. Cov txiaj ntsig kawg qhia tau tias cov qauv nthuav dav los ntawm 4000%.
Cov kws tshawb nrhiav ntseeg tias cov thev naus laus zis tam sim no tuaj yeem siv rau hauv cov ntawv thov sib dua xws li airfoils lossis buoyancy aids, nrog rau aerospace, lub zog, kev tsim kho thiab biomedical applications. Txoj kev tshawb fawb tau luam tawm hauv ACS Applied Materials & Interface.
Lub sijhawm tshaj tawm: Plaub Hlis-19-2023