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

Vat photopolymerization, tshwj xeeb yog laser stereolithography lossis SL/SLA, yog thawj lub tshuab luam ntawv 3D hauv khw. Chuck Hull tau tsim nws hauv xyoo 1984, tau txais daim ntawv pov thawj hauv xyoo 1986, thiab tau tsim 3D Systems. Cov txheej txheem siv lub teeb laser los polymerize cov khoom siv photoactive monomer hauv lub vat. Cov txheej photopolymerized (kho) lo rau ntawm lub phaj tsim uas txav mus rau saum lossis nqis nyob ntawm cov khoom siv, ua rau cov txheej sib law liag tsim. SLA systems kuj tseem tuaj yeem tsim cov khoom me me thiab meej siv lub teeb laser me me, hauv cov txheej txheem hu ua micro SLA lossis µSLA. Lawv kuj tseem tuaj yeem tsim cov khoom loj heev siv lub teeb loj dua thiab lub sijhawm tsim khoom ntev dua, hauv cov ntim tsim ntsuas ntau dua ob cubic meters.

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

Niaj hnub no muaj ntau hom kev siv tshuab vat photopolymerization. Thawj qhov uas tshwm sim tom qab SLA yog DLP (Digital Light Processing), tsim los ntawm Texas Instruments thiab coj los rau kev lag luam hauv xyoo 1987. Hloov chaw siv lub teeb laser rau photopolymerization, DLP thev naus laus zis siv lub tshuab projector teeb digital (zoo ib yam li lub tshuab projector TV txheem). Qhov no ua rau nws sai dua li SLA, vim nws tuaj yeem photopolymerize ib txheej ntawm cov khoom ib zaug (hu ua "planar" txheej txheem). Txawm li cas los xij, qhov zoo ntawm cov khoom nyob ntawm qhov kev daws teeb meem ntawm lub projector thiab poob qis thaum qhov loj nce ntxiv.

Ib yam li cov khoom siv extrusion, stereolithography tau yooj yim dua nrog kev muaj cov txheej txheem pheej yig. Cov txheej txheem pheej yig thawj zaug yog raws li cov txheej txheem SLA thiab DLP thawj zaug. Txawm li cas los xij, nyob rau xyoo tas los no, ib tiam tshiab ntawm cov txheej txheem compact uas pheej yig heev raws li cov teeb pom kev zoo LED / LCD tau tshwm sim. Kev hloov pauv tom ntej ntawm vat photopolymerization hu ua "txuas ntxiv" lossis "txheej txheem" ​​photopolymerization, uas feem ntau yog raws li DLP architecture. Cov txheej txheem no siv cov membrane, feem ntau yog oxygen, los ua kom cov nqi tsim khoom sai dua thiab txuas ntxiv mus. Daim ntawv pov thawj rau hom stereolithography no tau sau npe thawj zaug hauv xyoo 2006 los ntawm EnvisionTEC, lub tuam txhab DLP uas tau hloov pauv lub npe ua ETEC, tom qab nws tau txais los ntawm Desktop Metal. Txawm li cas los xij, Carbon, lub tuam txhab Silicon Valley, yog thawj tus ua lag luam cov thev naus laus zis no hauv xyoo 2016 thiab tau tsim nws tus kheej ua tus thawj coj hauv kev ua lag luam. Carbon cov thev naus laus zis, hu ua DLS (Digital Light Synthesis), muab cov nqi tsim khoom siab dua thiab muaj peev xwm tsim cov khoom nrog cov khoom siv sib xyaw ua ke, sib xyaw cov thermosets thiab photopolymers. Lwm lub tuam txhab, xws li 3D Systems (Daim Duab 4), Origin (tam sim no yog ib feem ntawm Stratasys), LuxCreo, Carima, thiab lwm tus, kuj tau qhia cov thev naus laus zis zoo sib xws rau kev ua lag luam.