Nrog rau txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis thiab kev txhawb nqa ntawm daim ntawv thov kev thov, kev siv cov qauv siv sai sai rau kev tsim cov hlau ua haujlwm ncaj qha tau dhau los ua qhov kev loj hlob tseem ceeb ntawm kev tsim qauv sai.Tam sim no, lub ntsiab hlau3D luam ntawv Cov txheej txheem uas tuaj yeem siv ncaj qha los tsim cov hlau ua haujlwm muaj xws li: Xaiv Laser Sintering(SLS) tshuab, Direct Hlau Laser Sintering(DMLS)technology, Xaiv Laser Melting (SLM)tshuab, Laser Engineered Net Shaping(LENS)technology thiab Electron Beam Selective Melting(EBSM)technology, thiab lwm yam.
Selective laser sintering(SLS)
Selective laser sintering, raws li lub npe implies, txais ib tug ua kua theem sintering metallurgical mechanism.Thaum lub sij hawm tsim cov txheej txheem, cov khoom siv hmoov yog ib nrab yaj, thiab cov hmoov nplej khaws lawv cov theem cores, uas yog tom qab ntawd rov qab los ntawm cov khoom theem tom ntej thiab cov kua theem solidification.Bonding ua tiav hmoov densification.
SLS technologytxoj cai thiab cov yam ntxwv:
Cov txheej txheem tag nrho cov cuab yeej yog tsim los ntawm lub tog raj kheej hmoov thiab lub tog raj kheej tsim.Cov hmoov ua hauj lwm lub tog raj kheej piston (hmoov noj piston) nce, thiab cov hmoov nteg cov menyuam sib npaug sib npaug ntawm cov hmoov sib sau ntawm lub tog raj kheej piston (ua haujlwm piston).Lub koos pij tawj tswj hwm qhov kev soj ntsuam ntawm ob sab ntawm lub laser beam raws li cov qauv ntawm cov qauv, thiab xaiv cov khoom siv hmoov los ua ib txheej ntawm cov khoom.Tom qab ua tiav ntawm ib txheej, lub piston ua hauj lwm yog txo qis ib txheej tuab, cov hmoov txheej txheej yog nteg nrog cov hmoov tshiab, thiab cov nqaj laser raug tswj kom luam theej duab thiab sintering txheej tshiab.Lub voj voog no txuas ntxiv mus, txheej los ntawm txheej, kom txog rau thaum cov txheej txheem peb-dimensional tsim.