Txhua yam koj yuav tsum paub txog yav dhau los, tam sim no thiab yav tom ntej ntawm stereolithography

Vat photopolymerization, tshwj xeeb tshaj yog laser stereolithography lossis SL / SLA, yog thawj 3D tshuab luam ntawv hauv khw. Chuck Hull tau tsim nws hauv 1984, patented nws hauv 1986, thiab nrhiav tau 3D Systems. Cov txheej txheem siv lub laser beam rau polymerize ib photoactive monomer khoom nyob rau hauv lub vat. Photopolymerized (kho) cov khaubncaws sab nraud povtseg ua raws li cov phaj tsim uas txav mus los yog qis dua nyob ntawm cov khoom siv kho vajtse, tso cai rau cov txheej txheem ua tiav. SLA systems kuj tuaj yeem tsim cov khoom me me thiab meej siv lub me me laser beam txoj kab uas hla, hauv cov txheej txheem hu ua micro SLA lossis µSLA. Lawv tuaj yeem tsim cov khoom loj heev uas siv cov kab kab loj dua thiab siv sijhawm ntev dua, nyob rau hauv kev tsim cov ntim ntau tshaj ob lub cubic meters.

Lub tshuab luam ntawv SLA-1 Stereolithography (SLA), thawj lub tshuab luam ntawv 3D luam tawm, tau qhia los ntawm 3D Systems hauv xyoo 1987.

Muaj ntau qhov kev hloov pauv ntawm vat photopolymerization tshuab muaj hnub no. Thawj qhov tshwm sim tom qab SLA yog DLP (Digital Light Processing), tsim los ntawm Texas Instruments thiab coj mus rau kev lag luam hauv xyoo 1987. Tsis yog siv lub teeb laser rau photopolymerization, DLP thev naus laus zis siv lub teeb pom kev zoo digital (zoo ib yam li tus qauv TV projector). Qhov no ua rau nws sai dua SLA, vim nws tuaj yeem photopolymerize tag nrho txheej ntawm cov khoom ib zaug (hu ua "planar" txheej txheem). Txawm li cas los xij, qhov zoo ntawm cov khoom nyob ntawm qhov projector qhov kev daws teeb meem thiab degrades raws li qhov loj me.

Zoo li cov khoom siv extrusion, stereolithography tau nkag tau yooj yim dua nrog rau cov khoom siv uas tsis muaj nqi. Thawj cov tshuab raug nqi qis tau ua raws li cov txheej txheem SLA thiab DLP qub. Txawm li cas los xij, nyob rau xyoo tas los no, lub cim tshiab ntawm tus nqi qis qis, kev cog lus raws li LED / LCD lub teeb ci tau tshwm sim. Kev hloov pauv tom ntej ntawm vat photopolymerization yog hu ua "nruam" lossis "layerless" photopolymerization, uas feem ntau yog raws li DLP architecture. Cov txheej txheem no siv ib daim nyias nyias, feem ntau yog cov pa oxygen, txhawm rau ua kom nrawm dua thiab txuas ntxiv mus. Cov patent rau hom stereolithography no yog thawj zaug sau npe nyob rau hauv 2006 los ntawm EnvisionTEC, lub tuam txhab DLP uas txij li thaum tau rebranded li ETEC, tom qab nws tau los ntawm Desktop Hlau. Txawm li cas los xij, Carbon, lub tuam txhab Silicon Valley, yog thawj tus lag luam thev naus laus zis hauv xyoo 2016 thiab tau tsim nws tus kheej ua tus thawj coj hauv kev ua lag luam. Carbon's thev naus laus zis, hu ua DLS (Digital Light Synthesis), muaj cov khoom tsim tau ntau dua thiab muaj peev xwm tsim cov khoom nrog cov khoom siv ruaj khov, sib txuas cov thermosets thiab photopolymers. Lwm lub tuam txhab, xws li 3D Systems (Daim duab 4), Keeb Kwm (tam sim no ib feem ntawm Stratasys), LuxCreo, Carima, thiab lwm yam, kuj tau qhia cov thev naus laus zis zoo sib xws rau kev ua lag luam.