Cov Txheej Txheem Tsim Hlau nrog Cov Txuj Ci Ntxiv
Pengantar
Hauv kev lag luam tsim khoom, kev tsim kho tshiab ntawm thev naus laus zis txuas ntxiv thawb cov ciam teb ntawm kev muaj peev xwm tsim khoom thiab kev ua haujlwm zoo. Ib qho thev naus laus zis uas hloov pauv tus qauv hauv kev tsim cov khoom siv hlau yog kev tsim khoom ntxiv. Kev tsim khoom ntxiv, uas paub zoo dua li 3D luam ntawv, yog ib txoj kev tsim khoom uas tsim cov khoom txheej los ntawm hauv av mus rau saum toj, siv cov ntaub ntawv tsim 3D. Cov thev naus laus zis no tau nkag mus rau ntau yam kev lag luam xws li aerospace, tsheb, kev kho mob, thiab ntau lwm yam. Tsab xov xwm no yuav tham txog cov txheej txheem tsim hlau siv cov txheej txheem ntxiv, cov thev naus laus zis koom nrog, nws cov txiaj ntsig, thiab nws cov ntawv thov hauv kev lag luam.
Kev Siv Tshuab Tsim Khoom Ntxiv Rau Cov Hlau
Muaj ntau yam thev naus laus zis tsim khoom siv los tsim cov khoom siv hlau. Qee qhov feem ntau yog:
1. Laser Powder Bed Fusion (LPBF)
Laser Powder Bed Fusion (LPBF) yog ib txoj kev luam ntawv hlau 3D uas nrov tshaj plaws. Cov txheej txheem no suav nrog kev nthuav ib txheej hmoov hlau nyias nyias rau ntawm lub txaj luam ntawv. Tom qab ntawd lub laser yaj cov hmoov hlau raws li tus qauv 3D, sib txuas cov hlau me me kom ua ib txheej khov kho. Cov txheej txheem no rov ua dua ib txheej dhau ib txheej kom txog thaum tag nrho cov khoom tiav.
2. Kev Tso Hluav Taws Xob (DED)
Kev Tso Zog Ncaj Qha (DED) siv cov khoom tso, uas tuaj yeem yog qhov chaw cua sov xws li laser lossis electrons, taw qhia rau thaj chaw tshwj xeeb uas hmoov hlau lossis hlau yaj. Cov txheej txheem no tso cai rau kev ntxiv cov khoom kom raug rau thaj chaw xav tau. DED muaj kev ntseeg siab heev rau kev kho cov khoom thiab cov ntawv thov loj.
3. Binder Jetting
Binder Jetting yog ib txoj kev uas muab cov hmoov hlau tso rau ntawm lub txaj luam ntawv thiab muab cov kua nplaum txau rau ntawm cov hmoov raws li tus qauv 3D. Tom qab txhua txheej raug sib txuas, lub hauv paus tom ntej raug tso, thiab cov txheej txheem rov ua dua kom txog thaum cov qauv tiav. Tom qab ntawd cov khoom tshwm sim raug sintered hauv qhov cub kom txuas cov hlau ua ke tag nrho.
4. Kev Yaj Hluav Taws Xob (EBM)
Kev Siv Hluav Taws Xob Los Yaj (EBM) siv hluav taws xob los ua qhov chaw kub los yaj cov hmoov hlau hauv lub tshuab nqus tsev. Cov txheej txheem no tso cai rau kev tswj cua sov zoo dua thiab tshwj xeeb tshaj yog tsim rau kev tsim cov khoom siv titanium thiab cov khoom siv hlau uas siv rau hauv kev lag luam aerospace thiab kev kho mob.
Cov Txheej Txheem Tsim Khoom Siv Hlau Ntxiv
Txhua txoj kev tsim cov khoom siv hlau ntxiv ua raws li cov kauj ruam dav dav hauv qab no:
1. Tsim CAD thiab Ua Ntej Ua Haujlwm
Cov txheej txheem pib nrog kev tsim cov qauv 3D digital ntawm cov khoom uas yuav tsim los ntawm kev siv Computer-Aided Design (CAD) software. Tom qab ntawd tus qauv tsim raug hloov mus rau hauv hom ntawv uas lub tshuab luam ntawv 3D nyeem tau, feem ntau siv cov ntaub ntawv STL (stereolithography). Tom ntej no, slicing software faib cov qauv 3D ua cov txheej nyias nyias uas lub tshuab luam ntawv 3D yuav siv los tsim cov khoom.
2. Kev Npaj Cov Khoom Siv thiab Cov Tshuab
Txhua yam thev naus laus zis tsim khoom siv ntxiv muaj cov khoom siv thiab cov tshuab xav tau tshwj xeeb. Cov txheej txheem feem ntau cuam tshuam nrog kev muab hmoov hlau lossis hlau rau hauv lub tshuab, nrog rau kev kho thiab kho cov txheej txheem xws li qhov ceev ntawm laser, lub zog, thiab qhov tuab ntawm txheej.
3. Cov Txheej Txheem Luam Ntawv
Thaum lub sijhawm luam ntawv, lub tshuab luam ntawv 3D yuav siv lossis yaj cov khoom raws li tus qauv 3D, txheej dhau txheej. Cov txheej txheem tswj hwm siab heev ua kom txhua txheej raug ntxiv nrog qhov tseeb siab, thiab cov txheej txheem tswj hwm kom ua tiav cov khoom zoo thiab cov yam ntxwv xav tau.
4. Tom qab ua tiav
Thaum luam ntawv tiav lawm, yuav tsum muaj ntau yam kauj ruam los ua kom cov khoom zoo nkauj dua. Qhov no suav nrog kev tshem tawm cov khoom seem ntau dhau, kev kho cua sov kom txo cov kev ntxhov siab sab hauv, thiab ntau txoj kev ua tiav kom ua tiav qhov ntev thiab qhov chaw uas xav tau.
Cov txiaj ntsig ntawm Kev Tsim Khoom Ntxiv rau Cov Hlau
1. Kev Tsim Qauv thiab Kev Kho Kom Zoo
Kev tsim khoom ntxiv ua rau muaj peev xwm tsim cov khoom siv uas muaj cov qauv sib txawv heev uas nyuaj lossis tsis yooj yim sua nrog cov txheej txheem tsim khoom ib txwm muaj xws li kev casting lossis stamping. Qhov no ua rau muaj cov qauv tsim sib dua, ua haujlwm tau zoo dua, thiab ua kom cov khoom siv zoo dua.
2. Lub Sijhawm Ua Ntej Luv Dua
Cov txheej txheem tsim khoom ntxiv tuaj yeem txo lub sijhawm uas xav tau los ntawm kev tsim qauv mus rau qhov kawg. Qhov no yog qhov tshwj xeeb tshaj yog rau kev tsim qauv sai lossis cov khoom uas xav tau kev teb sai.
3. Kev Ua Haujlwm Zoo ntawm Cov Khoom Siv
Kev tsim khoom txheej dhau txheej ua kom ntseeg tau tias tsuas yog siv cov khoom siv tsim nyog xwb, txo cov khib nyiab. Qhov no ua rau kev tsim khoom ntxiv yog ib txoj kev xaiv zoo dua rau ib puag ncig dua li cov txheej txheem ib txwm muaj.
4. Kev Tsim Khoom Raws Li Qhov Xav Tau
Lub peev xwm tsim cov khoom raws li qhov xav tau txo cov khoom khaws cia thiab cov nqi cuam tshuam. Qhov no yog qhov tseem ceeb tshwj xeeb hauv kev lag luam xws li aerospace, qhov twg cov khoom yuav tsum khaws cia rau lub sijhawm ntev.
Cov ntawv thov hauv kev lag luam
1. Huab cua
Kev lag luam aerospace yog ib qho ntawm cov neeg tau txais txiaj ntsig loj tshaj plaws ntawm kev tsim cov hlau ntxiv. Lub peev xwm los tsim cov khoom sib xyaw uas tsis hnyav tab sis muaj zog nrog cov qauv tsim nyuaj yog qhov tseem ceeb rau kev ua haujlwm thiab kev ua haujlwm ntawm lub dav hlau. Piv txwv li, cov khoom siv cav dav hlau luam tawm siv cov thev naus laus zis LPBF tuaj yeem txo qhov hnyav yam tsis muaj kev txo qis lub zog ntawm cov qauv.
2. Tsheb
Kev tsim cov hlau ntxiv kuj tseem siv rau hauv kev lag luam tsheb rau cov khoom sib dua, cov cuab yeej tshwj xeeb, thiab kev tsim qauv sai. Cov khoom luam tawm tuaj yeem kuaj tau sai dua, ua rau lub voj voog tsim khoom luv dua.
3. Kev Kho Mob
Hauv kev kho mob, cov khoom siv prosthetics thiab implants raug luam tawm 3D kom haum rau tus neeg mob lub cev loj thiab duab. Cov ntaub ntawv biocompatible xws li titanium feem ntau siv rau qhov no, uas muab cov txiaj ntsig zoo dua piv rau cov txheej txheem tsim khoom ib txwm muaj.
4. Zog
Cov thev naus laus zis ntxiv kuj tseem siv rau hauv kev lag luam zog, tshwj xeeb tshaj yog hauv kev tsim cov khoom siv turbine thiab cov cuab yeej thiab cov khoom siv rau kev tshawb nrhiav roj thiab roj av. Kev ntseeg siab ntawm cov khoom siv thiab kev ua tau zoo uas tau los ntawm kev luam ntawv 3D ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau ntau thiab cov chaw ib puag ncig hnyav.
Cov Kev Cov nyom thiab Yav Tom Ntej
Txawm hais tias nws muaj ntau yam zoo, kev tsim cov hlau ntxiv kuj ntsib ntau yam teeb meem. Cov no suav nrog tus nqi siab ntawm cov khoom siv thiab cov ntaub ntawv, nrog rau qhov xav tau los tsim cov qauv thiab cov lus qhia kom ntseeg tau tias muaj kev sib xws thiab zoo ntawm cov khoom luam tawm. Kev tshawb fawb thiab kev txhim kho tseem tab tom ua mus ntxiv los daws cov teeb meem no thiab qhib lub peev xwm tag nrho ntawm thev naus laus zis.
Xaus
Kev tsim cov khoom siv hlau ntxiv yog ib qho thev naus laus zis uas hloov pauv sai sai uas muab ntau lub sijhawm rau kev tsim kho tshiab thiab kev txhim kho kev ua haujlwm zoo thoob plaws ntau yam kev lag luam. Nrog nws lub peev xwm los tsim cov qauv tsim nyuaj, txuag lub sijhawm thiab cov ntaub ntawv, thiab ua kom muaj peev xwm tsim khoom raws li qhov xav tau, kev tsim cov khoom siv hlau ntxiv yuav dhau los ua lub hauv paus tseem ceeb hauv kev tsim khoom yav tom ntej. Txawm hais tias nws txuas ntxiv daws cov teeb meem uas twb muaj lawm, nws cov kev siv thiab cov txiaj ntsig yuav ua rau kev siv thev naus laus zis nthuav dav thoob plaws ntau yam kev lag luam.
