Ukuphrinta kwe-3D kuwubuchwepheshe obuhle futhi obuguquguqukayo obunokusetshenziswa okuningi. Kodwa-ke, kuze kube manje, bekukhawulelwe entweni eyodwa - usayizi wephrinta ye-3D.
Lokhu kungashintsha maduze. Ithimba le-UC San Diego lenze i-foam engakhula ibe yinde ngokuphindwe ka-40 ngobukhulu bayo bokuqala.
"Ekukhiqizeni kwanamuhla, umkhawulo owamukelwa ngokuvamile ukuthi izingxenye ezenziwe kusetshenziswa izinqubo zokukhiqiza ezengeziwe noma ezisusayo (njengemishini yokugaya, imishini, noma amaphrinta e-3D) kumele zibe zincane kunemishini ngokwayo ezikhiqizayo. kumele zibe zincane kunemishini ngokwayo ezikhiqizayo.
"Sithuthukise i-resin ye-prepolymer enegwebu yokukhiqiza izithasiselo ze-lithographic engakhula ngemva kokuphrinta ukuze ikhiqize izingxenye ezifika ku-40 zomthamo wokuqala. Izakhiwo eziningana ezizikhiqizayo."
Okokuqala, ithimba lakhetha i-monomer eyayizoba yisisekelo sokwakha i-polymer resin: i-2-hydroxyethyl methacrylate. Kwabe sekufanele bathole ukuhlushwa okuhle kakhulu kwe-photoinitiator kanye ne-ejenti yokufutha efanele ukuhlanganiswa ne-2-hydroxyethyl methacrylate. Ngemva kokuhlolwa okuningi, ithimba lanquma i-ejenti yokufutha engeyona yendabuko evame ukusetshenziswa nama-polymer asekelwe ku-polystyrene.
Ngemva kokuthola i-resin yokugcina ye-photopolymer, ithimba le-3D lanyathelisa imiklamo elula ye-CAD futhi layifudumeza kufika ku-200°C imizuzu eyishumi. Imiphumela yokugcina ibonise ukuthi isakhiwo sanda ngo-4000%.
Abacwaningi bakholelwa ukuthi ubuchwepheshe manje bungasetshenziswa ezinhlotsheni ezilula njenge-airfoils noma izinsiza zokufutha, kanye nezinhlelo zokusebenza zezindiza, amandla, ukwakhiwa kanye nezokwelapha. Ucwaningo lushicilelwe ku-ACS Applied Materials & Interface.
Isikhathi sokuthunyelwe: Ephreli-19-2023