I-Stereolithography (SLA) – Ukukhetha Okuhle Kokuphrinta Kwe-3D Okunembe Kakhulu
I-Stereolithography (i-SLA noma i-SL) ubuchwepheshe bokuphrinta be-3D obunembe kakhulu obusebenzisa i-resin ezwela ukukhanya njengezinto zokusetshenziswa. Lobu buchwepheshe busebenzisa izakhiwo zokupholisa ngokushesha ze-resin ezwela ukukhanya ngaphansi kwemisebe ethile ye-UV laser, okuvumela ukwenziwa kahle kwezakhiwo eziyinkimbinkimbi ze-3D ngokwenziwa kwengqimba ngengqimba.
Ngesikhathi senqubo yokwenziwa, i-resin ethambile ekhanyayo idlula ku-polymerization kanye nokuqina ngokushesha lapho ivezwa ekukhanyeni kwe-UV (ibanga lobude be-wavelength cishe liyi-250-400nm). Umshini we-SLA ugxila ngqo i-laser ye-UV ebusweni be-resin ethambile ekhanyayo, kancane kancane uphulukisa i-resin kusukela endaweni kuya emgqeni bese kusuka emgqeni kuya komunye, kufezwa izithombe eziqondile zesendlalelo ngasinye. Isendlalelo ngesendlalelo, kwakhiwa imodeli ye-3D eqinile nenemininingwane.
I-Stereolithography inikeza izinzuzo ezifana nokunemba okuphezulu kokubumba, izindawo ezibushelelezi, kanye nokukhiqizwa kwemininingwane enesinqumo esiphezulu. Isetshenziswa kabanzi ekwenzeni amamodeli ezimboni, ukuklama amadivayisi ezokwelapha, ukuklama ubucwebe, ukukhiqizwa kwesikhunta, kanye nokwenza ama-prototyping aphezulu. Ukwenziwa kwayo okusheshayo nokunembile kunciphisa kakhulu imijikelezo yokuthuthukiswa komkhiqizo, okuletha ukuguquguquka okukhulu kanye nokusungula izinto ezintsha embonini yokukhiqiza.
I-SLA (i-Stereolithography) ayiyona nje ubuchwepheshe obumele okubalulekile ekuphrinteni kwe-3D, kodwa futhi iyisisombululo esisebenza kahle kakhulu sokufeza i-prototyping yekhwalithi ephezulu kanye nokukhiqizwa okwenziwe ngokwezifiso ngamaqembu amancane, okusiza izinkampani ukufeza amazinga aphezulu ekukhiqizeni ngokunemba.
Ama-Resins Akhululekile Ane-Photosensitive:
Izinzuzo: Izindleko eziphansi, ukwelashwa okusheshayo, ukuqina okuhle, ukujiya okuphansi
Okubi: Ukuvinjelwa okukhulu kwe-oksijini, ukuncishiswa okuphezulu, ukusonteka kwemikhiqizo ephrintiwe, ukunemba okuphansi, kanye nesidingo sokulungiswa kwesibili
Ama-resin e-Cationic Photosensitive:
Izinzuzo: Ukuncipha okuncane kwevolumu lapho ivuselelwa, izinga eliphezulu lokusabela, asikho isidingo sokulungiswa kwesibili ngemva kokubumba, akuthinteki ukuvinjelwa komoya-mpilo, ukuzinza okuhle kobukhulu, izakhiwo ezinhle kakhulu zemishini, kanye nokunemba okuphezulu.
Okubi: Izinga lokusabela kancane, ukujiya okuphezulu, ama-vinyl ether anomthamo ophezulu wokuvezwa kanye nokuphiliswa kancane; ama-epoxies ayaphuka
Izinhlelo Ezihlanganisiwe:
Izinhlelo ze-acrylate-epoxy hybrid zihlanganisa izimiso ezimbili zokwelapha ezishiwo ngenhla, kanye nabaqalisi be-cationic kanye nama-free radical abasebenza ndawonye.
Ama-resin okunyathelisa e-3D ahlukaniswe ngama-resin akhululekile ane-photosensitive, ama-resin ane-cationic photosensitive, kanye nezinhlelo ze-hybrid. I-Ever Ray, umenzi onolwazi lweminyaka engu-20 ogxile ekukhiqizweni nasekuthuthukisweni kwama-resin ane-phototherapy, unamandla okukhiqiza ngonyaka angamathani angu-20,000, umugqa womkhiqizo ophelele, kanye nekhono lokwenza ngezifiso imikhiqizo. Ama-resin okunyathelisa e-3D afaka i-Polyurethane 7224-1, 7200, 7296-1, kanye no-7253A-5.
