Selective Laser Melting (SLM) siv high-zog laser irradiation thiab tag melts hlau hmoov los ua 3D duab, uas yog ib tug heev muaj peev xwm hlau additive manufacturing technology.Nws tseem hu ua laser melting vuam tshuab.Feem ntau, nws tau suav tias yog ib ceg ntawm SLS thev naus laus zis.
Nyob rau hauv cov txheej txheem ntawm SLS luam ntawv, cov khoom siv hlau siv yog cov hmoov sib xyaw ua tiav thiab qis melting point hlau lossis cov khoom siv molecular.Cov khoom uas tsis tshua muaj melting point yog melted tab sis lub siab melting point hlau hmoov tsis melted nyob rau hauv cov txheej txheem.use Peb siv cov khoom melted kom ua tiav cov nyhuv ntawm kev sib txuas thiab molding.Vim li ntawd, qhov chaw muaj qhov pores thiab cov khoom siv tsis zoo.Remelting ntawm qhov kub thiab txias yog qhov tseem ceeb yog tias nws yuav tsum tau siv.
Tag nrho cov txheej txheem ntawm SLM luam ntawv pib nrog slicing 3D CAD cov ntaub ntawv thiab hloov 3D cov ntaub ntawv mus rau ntau 2D cov ntaub ntawv.Hom ntawv ntawm 3D CAD cov ntaub ntawv feem ntau yog cov ntaub ntawv STL.Nws kuj tau siv dav hauv lwm cov txheej txheem 3D luam ntawv.Peb tuaj yeem xa cov ntaub ntawv CAD mus rau hauv slicing software thiab teeb tsa ntau yam cwj pwm tsis zoo, thiab tseem teeb tsa qee qhov kev tswj hwm kev luam ntawv.Nyob rau hauv tus txheej txheem ntawm SLM luam ntawv, thawj zaug, ib txheej nyias yog luam tawm uniformly ntawm lub substrate, thiab ces lub 3D duab printing yog pom los ntawm lub zog ntawm Z axis.
Tag nrho cov txheej txheem luam ntawv yog nqa tawm hauv lub thawv kaw uas muaj cov roj inert argon lossis nitrogen kom txo cov pa oxygen rau 0.05%.Hom kev ua haujlwm ntawm SLM yog los tswj cov galvanometer kom paub txog lub laser irradiation ntawm cov nplais hmoov, cua sov cov hlau kom txog thaum nws tag nrho yaj.Thaum lub rooj irradiation ntawm ib theem ua tiav, lub rooj txav mus los, thiab cov txheej txheem tiling ua haujlwm ntawm cov pobzeb dua, thiab tom qab ntawd lub laser .Tom qab ua tiav cov irradiation ntawm txheej tom ntej, cov txheej txheem tshiab ntawm cov hmoov yog melted thiab bonded. nrog rau yav dhau los txheej, .Lub voj voog no rov ua kom tiav thaum kawg ua tiav 3D geometry.Qhov chaw ua haujlwm tau ntim nrog cov roj inert kom tiv thaiv cov hmoov hlau los ntawm kev oxidized, .Ib txhia muaj cua tshuab kom tshem tawm cov spark generated los ntawm lub laser.
SLM luam ntawv cov kev pab cuam ntawm JS additive yog siv nyob rau hauv ntau yam teb, xws li mold manufacturing, industrial precision Cheebtsam, aerospace, tsheb tsim, kev siv kho mob, kev tshawb fawb, thiab lwm yam me me batch moldless ntau lawm los yog customization.SLM thev naus laus zis sai prototyping muaj cov yam ntxwv ntawm cov qauv zoo ib yam thiab tsis muaj qhov, uas tuaj yeem paub txog cov qauv nyuaj heev thiab tus qauv kub khiav.