3D luam ntawv, tseem hu ua additive manufacturing, yog ib qho kev tsim technology siab heev uas tsim peb - cov khoom seem los ntawm cov ntaub ntawv txheej raws li cov qauv cov ntaub ntawv. Txij li thaum nws tsim nyob rau xyoo 1980s, 3D luam ntawv tau hloov zuj zus los ntawm cov cuab yeej prototyping sai mus rau cov thev naus laus zis tseem ceeb uas suav nrog ntau hom kev lag luam xws li tshuaj, aerospace, automotive, thiab kev tsim kho, tsav kev lag luam kev lag luam mus rau kev txawj ntse thiab kev tsim tus kheej.
Lub hauv paus ntsiab lus tseem ceeb ntawm 3D luam ntawv yog tsim kom muaj peb - qauv qauv siv lub computer- pab tsim (CAD) software, tom qab ntawd hlais mus rau ntau pua mus rau txhiab ntawm ob- qhov ntev cross- ntu cov ntaub ntawv txheej, coj lub tshuab luam ntawv kom tso cov khoom siv los ntawm txheej. Cov tshuab luam ntawv muaj xws li fused deposition modeling (FDM), stereolithography (SLA), thiab xaiv laser sintering (SLS), txhua tus haum rau cov khoom sib txawv (xws li yas, hlau, thiab ceramics) thiab precision yuav tsum. Piv txwv li, FDM siv siab -kub melting ntawm thermoplastics thiab extrusion txheej los ntawm txheej, ua rau nws tsim nyog rau tsawg- nqi prototyping; thaum SLA siv ultraviolet lasers los solidify cov kua resin, ua kom tsim cov micron -theem precision qhov chaw.
3D luam ntawv muaj cov txiaj ntsig tseem ceeb: Ua ntej, nws muaj kev hloov kho siab, ua kom cov khoom siv geometries nyuaj yam tsis muaj pwm, ua tau raws li qhov xav tau ntawm kev cog ntoo kho mob thiab cov khoom siv ntawm tus kheej. Thib ob, nws boasts high material efficiency. Kev tsim cov khoom siv hluav taws xob feem ntau ua rau cov khoom pov tseg tseem ceeb, thaum cov khoom siv ntxiv tsuas yog siv cov khoom tsim nyog xwb. Thib peb, nws txo qis cov voj voog ntau lawm, ua rau nws tsim nyog rau R & D scenarios uas muaj cov khoom me me thiab rov ua dua sai.
Txawm li cas los xij, 3D luam ntawv tseem ntsib cov teeb meem, xws li kev luam ntawv qeeb qeeb thiab qhov yuav tsum tau ua kom zoo tshaj plaws ntawm cov khoom siv hlau loj. Nrog kev ua tiav hauv cov thev naus laus zis xws li ntau- cov ntaub ntawv luam tawm thiab 4D luam ntawv (lub sijhawm- cov ntaub ntawv sib txawv), 3D luam ntawv yuav txuas ntxiv kev txawj ntse txawj ntse thiab Is Taws Nem ntawm Yam, dhau los ua tus ncej tseem ceeb ntawm Lub Plaub Hlis Industrial Revolution thiab hloov kho lub ntiaj teb kev tsim khoom.
