Taw qhia:
Cov teb ntawm kev tsim khoom ntxiv thiab kev tsim qauv nrawm tau pom cov kev hloov pauv tseem ceeb ua tsaug rau qhov kev nthuav dav3D tshuab luam ntawvlub npe hu uastereolithography (SLA). Chuck Hull tsim SLA, thawj hom 3D luam ntawv, hauv xyoo 1980s. Peb,FCE, yuav qhia koj txhua cov ntsiab lus hais txog cov txheej txheem thiab kev siv ntawm stereolithography hauv kab lus no.
Lub hauv paus ntsiab lus ntawm Stereolithography:
Hauv paus, stereolithography yog cov txheej txheem ntawm kev tsim cov khoom peb-dimensional los ntawm cov qauv digital txheej txheej los ntawm txheej. Hauv kev sib piv rau cov txheej txheem tsim khoom (xws li milling lossis carving), uas ntxiv cov khoom ib txheej ntawm ib lub sij hawm, 3D luam ntawv-xws li stereolithography-ntxiv cov ntaub ntawv txheej txheej.
Peb lub ntsiab lus tseem ceeb hauv stereolithography yog tswj stacking, resin curing, thiab photopolymerization.
Photopolymerization:
Cov txheej txheem ntawm kev siv lub teeb rau cov kua resin tig mus rau hauv cov khoom polymer hu ua photopolymerization.
Photopolymerizable monomers thiab oligomers muaj nyob rau hauv cov resin siv nyob rau hauv stereolithography, thiab lawv polymerize thaum raug rau tej lub teeb wavelengths.
Resin Curing:
Lub vat ntawm cov kua resin yog siv los ua qhov pib ntawm 3D luam ntawv. Lub platform nyob rau hauv qab ntawm lub vat yog immersed nyob rau hauv lub resin.
Raws li cov qauv digital, UV laser beam xaiv solidifies cov kua resin txheej los ntawm txheej thaum nws scans nws nto.
Cov txheej txheem polymerization yog pib los ntawm kev ua tib zoo nthuav tawm cov resin rau UV lub teeb, uas ua rau cov kua ua kua rau hauv txheej.
Tswj Txheej Txheej:
Tom qab txhua txheej solidifies, lub platform tsim yog maj mam tsa kom nthuav tawm thiab kho cov txheej tom ntej ntawm resin.
Txheej los ntawm txheej, txheej txheem no yog nqa tawm kom txog rau thaum tag nrho 3D khoom tsim.
Kev npaj qauv Digital:
Siv computer-aided design (CAD) software, digital 3D qauv yog tsim los yog tau los pib txheej txheem 3D luam ntawv.
Slicing:
Txhua txheej nyias ntawm cov qauv digital sawv cev rau ntu ntu ntawm cov khoom tiav. Lub tshuab luam ntawv 3D tau qhia kom luam cov ntawv no.
Kev luam ntawv:
Lub tshuab luam ntawv 3D uas siv stereolithography tau txais cov qauv txiav.
Tom qab immersing lub platform tsim nyob rau hauv cov kua resin, cov cob yog txheej txheem kho txheej txheem los ntawm txheej siv lub UV laser raws li cov lus qhia hlais.
Tom qab ua tiav:
Tom qab cov khoom tau luam tawm nyob rau hauv peb qhov loj me, nws yuav tsum ua tib zoo coj tawm ntawm cov kua resin.
Kev tu cov khoom siv ntau dhau, kho cov khoom siv ntxiv, thiab, hauv qee qhov xwm txheej, xuab zeb lossis polishing rau qhov ua tiav smoother yog tag nrho cov piv txwv ntawm kev ua tiav tom qab.
Daim ntawv thov ntawm Stereolithography:
Stereolithography pom cov ntawv thov hauv ntau qhov kev lag luam, suav nrog:
· Prototyping: SLA yog dav siv rau prototyping sai vim nws muaj peev xwm los tsim cov qauv kom ntxaws thiab raug.
· Product Development: Nws yog ua hauj lwm nyob rau hauv cov khoom tsim los tsim prototypes rau tsim validation thiab kuaj.
· Cov Qauv Kho Mob: Hauv kev kho mob, stereolithography yog siv los tsim cov qauv anatomical intricate rau kev npaj phais thiab kev qhia.
· Custom Manufacturing: Lub tshuab yog ua haujlwm los tsim cov khoom siv thiab cov khoom siv rau ntau yam lag luam.
Xaus:
Niaj hnub nimno 3D luam ntawv thev naus laus zis, uas muaj qhov tseeb, nrawm, thiab ntau yam hauv kev tsim cov khoom peb-dimensional zoo sib xws, tau ua los ntawm stereolithography. Stereolithography tseem yog ib feem tseem ceeb ntawm kev tsim khoom ntxiv, pab tsim kom muaj ntau yam kev lag luam raws li kev siv thev naus laus zis.
Post lub sij hawm: Nov-15-2023