Fused Deposition Modeling (FDM) thiab PolyJet yog ob qho kev tshaj lij thiab siv tau zoo 3D luam ntawv thev naus laus zis. Lawv txawv los ntawm kev lag luam duab qauv khoom siv rau cov khoom siv hauv tsev loj loj nrog cov peev nyiaj zoo. Thiab nws tuaj yeem tsim cov khoom ruaj khov los ntawm cov qauv meej thiab cov ncauj lus kom ntxaws. Txawm hais tias ob lub tshuab thev naus laus zis no muaj cov ntawv hla kev txiav thiab qhov zoo, ob lub tshuab thev naus laus zis no tseem muaj kev ywj pheej thiab tuaj yeem nqa cov txiaj ntsig sib txawv. Kev nkag siab txog qhov sib txawv ntawm ob yog qhov ntsuas rau kev xaiv cov cuab yeej tsim nyog rau daim ntawv thov.
tshuab
Fused Deposition Modeling (FDM):
Lub taub hau cua sov ua kom sov cov khoom siv thermoplastic (ABS resin, nylon, wax, thiab lwm yam) mus rau lub xeev tseem ceeb, nthuav tawm cov khoom ib nrab ntawm cov kua dej. Raws li kev tswj hwm lub computer, raws li ob-seem geometric cov ntaub ntawv trajectory txiav txim siab los ntawm CAD, lub nozzle squeezes tawm cov khoom semi-kua. , Solidified los tsim ib txheej nyias ntawm contour zoo. Thaum thawj txheej ua tiav, cambium tshiab tau qis dua los ntawm kev nqa ntsug ntsug rau kev kho. Nyob rau hauv txoj kev no, cov khaubncaws sab nraud povtseg yog stacked thiab sib koom ua ke los ua ib qho chaw peb sab ntawm ib feem ntawm hauv qab mus rau sab saum toj.
Polyjet 3D luam ntawv:
PolyJet lub dav hlau luam ntawv lub taub hau txav rov qab mus rau X axis rau dav hlau photopolymer. Thaum cov khoom siv photosensitive polymer yog txau rau ntawm qhov chaw ua haujlwm, UV teeb yuav tawm UV ultraviolet lub teeb raws li kev ua haujlwm ntawm lub nozzle los kho cov khoom siv photosensitive polymer. Tom qab ua tiav lub dav hlau luam ntawv thiab kho ntawm ib txheej, cov txheej txheem no yuav rov ua dua, txheej los ntawm txheej, kom txog thaum tag nrho cov khoom 3D tsim.
Cov thev naus laus zis no tuaj yeem tsim qauv lossis cov khoom tiav rau cov hniav nyiaj hniav kub thiab kev tsim kho kev lag luam nrog rau kev lag luam aerospace thiab cov neeg siv khoom siv hluav taws xob tsim khoom lag luam. Txhawm rau ua kom tiav kev teeb tsa ntawm lub kaw lus uas siv cov thev naus laus zis no, nws yuav raug nqi ntawm 99 txog 600,000 US las. Nws yog qhov tseeb tias muaj tej yam uas muaj txiaj ntsig zoo rau txhua tus neeg thiab txhua daim ntawv thov hauv cov thev naus laus zis no, yog li ntau lub tuam txhab siv FDM thiab Polyjet tshuab tib lub sijhawm los ua kom zoo dua lub zog ntawm txhua qhov system. Txawm li cas los xij, rau cov neeg uas nws cov peev nyiaj tsawg heev uas lawv tuaj yeem xaiv tsuas yog ib qho ntawm cov kab ke, tom qab ntawd kev ua haujlwm, cov yam ntxwv ntawm cov khoom siv, thiab kev xaiv cov khoom yuav tsum raug txiav txim siab.
Muab piv
Kev sib piv ntawm peb pawg ntawm FDM thiab Polyjet yuav ua raws li cov txheej txheem kev txiav txim siab. "Kev khiav hauj lwm" yuav muab piv nrog kev ua haujlwm ib puag ncig, kev ua haujlwm thiab sijhawm; cov yam ntxwv tivthaiv yuav npog cov khoom zoo ntawm cov khoom; thiab kev xaiv cov khoom siv yuav xav txog cov khoom siv lub cev tau los ntawm FDM thiab Polyjet ua.
Kev khiav hauj lwm ceev
Txawm hais tias kev ua tau zoo tuaj yeem ua qhov tsis zoo, kev nrawm feem ntau yog qhov tseem ceeb. Qee zaum, Polyjet yuav nrawm dua, tab sis qhov no tsis yog ib txwm muaj. Thaum peb ntsuas lub sij hawm los ntawm kev npaj cov ntaub ntawv mus rau kev xa cov khoom tiav, peb yuav pom tias, qhov nruab nrab, tag nrho cov sij hawm siv los ntawm FDM thiab Polyjet yog tib yam.
Rau cov kauj ruam ua ntej, ob qho tib si technologies muab ib qho yooj yim heev pem hauv ntej-kawg ua ntaub ntawv, cia li ob peb clicks ntawm tus nas, ib tug npaj-ua luam ntawv yuav tsum generated nyob rau hauv tsib feeb. Ib qho ntawm qhov sib txawv yog tias lub tshuab luam ntawv 3D siv los ntawm FDM ntxiv cov neeg siv khoom siv siab heev uas tuaj yeem kho qhov kev pab cuam lub tsev kom tau raws li qhov xav tau ntawm daim ntawv thov. Txhua qhov kev tsim kho tsis tau qhib rau cov neeg siv.
Hauv kev ua tiav tom qab, thaum nws los txog rau kev txhawb nqa disassembly thiab ntxuav ntawm qhov chaw, qhov zoo sib xws ntawm FDM thiab Polyjet pib ploj mus. Polyjet siv cov dav hlau dej kom tshem tawm cov ntaub ntawv zoo li jelly los ntawm phau ntawv ceev ceev; thaum rau FDM, cov neeg siv xaiv los ua kom tiav cov kauj ruam ntawm kev tshem tawm cov soluble stent los ntawm soaking hauv dej tank, uas yuav siv sij hawm ntev dua; los yog siv cov txheej txheem phau ntawv yooj yim. Cov cuab yeej tshem tawm lub bracket.
Thaum xaiv ib lub tshuab, nws yog ib qho tsim nyog los ntsuas qhov kev ua haujlwm ntawm kev ua haujlwm rau kev lag luam. Piv txwv li, yog tias qib ntawm cov neeg ua haujlwm tsis siab, nws yog qhov zoo tshaj los xaiv FDM's tag nrho automation. Yog tias kev hloov pauv ceev yog qhov tseem ceeb tshaj plaws, xaiv Polyjet.
Chaw ua haujlwm ib puag ncig
Tsis zoo li lwm yam AM thev naus laus zis, FDM thiab Polyjet tsis tas yuav muaj chav kuaj kaw lossis hnav tiv thaiv ua pa. Thaum lub sij hawm siv, yuav tsis muaj hmoov uas yuav kis tau los ntawm huab cua thiab rhiab heev rau cov av noo thiab kub, thiab tag nrho cov tshuab yuav tsum tau tsuas yog me me kav dej los yog hluav taws xob fais fab. Hluav taws xob, dej thiab cov kav dej (yuav tsum tau ua haujlwm tom qab ua tiav) tau ua tiav lawv cov kev xav tau.
Yooj yim rau siv
Ntxiv rau qhov yooj yim ntawm cov ntaub ntawv teeb tsa, muaj lwm yam uas ua rau FDM thiab Polyjet yooj yim siv.
● Cov ntaub ntawv hloov dua siab tshiab: Tsuas yog tshem tawm ib qho khoom thiab ntxig lub thawv khoom tshiab rau hauv lub tshuab luam ntawv 3D.
● Kev teeb tsa: Ntxig ib daim ntawv tsim kho (FDM nkaus xwb), cia lub kaw lus ncav cuag qhov kub thiab txias, thiab nias "Start".
● Tom qab ua tiav: Tom qab ua haujlwm tiav, qhib lub qhov rooj / npog thiab tshem tawm cov khoom.
Tus nqi khiav haujlwm
Polyjet cov nqi khiav lag luam yog me ntsis siab dua FDM, yog li yog tias pob nyiaj siv yog koj qhov kev txiav txim siab, FDM yuav yog qhov kev xaiv zoo dua.
Lub ntsiab tseem ceeb uas txiav txim siab tus nqi khiav haujlwm yog cov khoom siv, txawm tias nws yog khoom siv lossis khoom siv. Nrog FDM, koj yuav nquag hloov cov phaj tsim (los yog daim ntawv) thiab extrusion nozzle. Txawm li cas los xij, cov no yog pheej yig dua li cov nozzles nyuaj uas Polyjet tau hloov.
Tsis tas li ntawd, tag nrho cov khoom siv nqi ib cubic nti ntawm FDM cov khoom raug nqi tsawg dua. Yog tias koj xam tus nqi raws li qhov hnyav ntawm cov khoom siv, qhov tseeb, tus nqi ntawm ob lub thev naus laus zis yuav luag tib yam. Txawm li cas los xij, tus nqi ntawm txhua feem ntawm FDM yog qis dua vim nws xav tau cov ntaub ntawv txhawb nqa tsawg. Polyjet system xav tau cov ntaub ntawv txhawb nqa ntxiv los txwv cov tee me me.
Cov yam ntxwv ntawm ntu:
1. Nto tiav
Polyjet muaj peev xwm tsim tau qhov chaw du, ci ntsa iab, txawm tias me me ntawm qhov chaw yuav tshwm sim. FDM tsis yog li ntawd. Cov txheej txheem extrusion ntawm FDM ua rau pom txheej txheej ntawm cov phab ntsa los yog sab saum toj thiab hauv qab. Cov kab no tuaj yeem raug tshem tawm, tab sis yuav tsum tau ua ntxiv tom qab ua tiav. 2. Kev daws teeb meem thiab nthuav dav
Kev daws teeb meem siab thiab cov ntsiab lus zoo yog cov cim ntawm cov txheej txheem Polyjet. Polyjet luam tawm nyob rau hauv cov khaubncaws sab nraud povtseg ntawm 16 mus rau 32 microns ntawm 600x 600 dpi los tsim cov ntsiab lus nyuaj thiab zoo nkauj. Yog li, yog tias kev daws teeb meem yog koj qhov kev xav tseem ceeb, ces PolyJet yog qhov kev xaiv zoo tshaj plaws.
3. Qhov tseeb
Hais txog qhov tseeb ntawm qhov ntev, cov ntawv tshaj tawm qhia tau hais tias cov txiaj ntsig tau los ntawm FDM thiab PolyJet platforms zoo sib xws thaum cov khoom raug tshem tawm ntawm lub cev. Txawm li cas los xij, nrog lub sijhawm dhau los thiab kev sib raug zoo ntawm kev thauj khoom, qhov ntev ntawm FDM cov ntaub ntawv yog qhov ruaj khov dua, uas yog qhov tseem ceeb rau kev tsim cov khoom.
qhov loj
(Faj seeb: Cov lus qhia hauv qab no tau muab sib npaug rau qhov yooj yim.) PolyJet thiab FDM cov tshuab tuaj yeem luam tawm ntawm 5 × 5 × 5 ntiv tes (127 × 127 × 127 hli) mus rau 39 × 31 × 20 ntiv (1000 × 800 × 500 mm). Cov khoom, lawv txhua tus muaj qhov zoo sib xws nruab nrab thiab loj loj xaiv. Qhov sib txawv nkaus xwb yog qeb me me. Qhov nkag-theem FDM muaj qhov loj ntawm 5 × 5 × 5 ntiv tes, uas yog me me kom haum rau lub desktop. Qhov tsawg tshaj plaws PolyJet yog 9 × 8 × 6 nti (240 × 200 × 150 mm).
Khoom siv
Rau ntau tus neeg, qhov sib txawv loj tshaj ntawm FDM thiab PolyJet los ntawm cov khoom siv. Muaj ze li ntawm 600 yam khoom nyob rau hauv tag nrho, xws li cov thermoplastics mus rau thermoplastic resins, nruj kom yoog raws, thiab opaque rau pob tshab.
PolyJet muab cov khoom sib txawv 3D luam ntawv rau hauv tib tus qauv los ntawm kev siv ntau yam ntaub ntawv tib lub sijhawm. Qhov no txhais tau tias koj tuaj yeem xaiv ntau cov ntaub ntawv hauv cov qauv luam tawm, lossis tseem muab ob lossis peb cov ntaub ntawv los tsim cov ntaub ntawv digital sib xyaw nrog cov khoom sib txawv. Muab cov ntaub ntawv nruj thiab cov roj hmab zoo li simulate ntau qhov Shore A hardness qhov tseem ceeb; sib tov cyan, magenta, thiab daj los tsim ntau yam sib xyaw tones; txawm muab cov ntaub ntawv zoo li roj hmab nrog cov xim los tsim cov qauv ci ntsa iab thiab hloov tau yooj yim uas saib ze rau cov khoom lag luam yav tom ntej. Yog tias qhov dav ntawm cov khoom ua tau zoo yog qhov koj xav tau, PolyJet yog koj lub platform zoo tshaj plaws.
Ntawm qhov tod tes, yog tias koj daim ntawv thov xav tau cov thermoplastics ua haujlwm thiab ruaj khov, FDM yog qhov kev xaiv zoo. Cov ntaub ntawv siv hauv FDM ntau yam los ntawm cov khoom siv yas ABS rau cov khoom siv siab heev ULTEM ™ 9085. FDM cov ntaub ntawv muaj ntau yam tshwj xeeb cov yam ntxwv, xws li static dissipation, translucency, biocompatibility, VO flammability, thiab FST ntsuam xyuas, ua rau lawv zoo tagnrho rau xav tau designers thiab engineers nyob rau hauv lub aerospace, automotive, thiab kev kho mob industries.
Ob leeg FDM thiab PolyJet muab cov ntaub ntawv biocompatible los ntawm USP yas VI rau ISO10993. Lawv tuaj yeem siv rau hauv cov khoom siv pob ntseg, kho hniav thiab phais cov lus qhia thiab khoom siv, thiab kev tuav zaub mov thiab tshuaj.
Additive manufacturing (AM) npog ntau yam khoom los ntawm kev siv kho mob mus rau cov khoom lag luam. Txhua daim ntawv thov muaj tib yam kev xav tau thiab cov kev xav tau sib txawv. Nws yog cov ntawv thov tshwj xeeb uas txiav txim siab seb lub tshuab twg yog cov cuab yeej zoo tshaj plaws rau kev tsim cov ntawv thov, FDM lossis PolyJet 3D luam ntawv.
Raws li kev siv tshuaj kho mob, ob qho tib si thev naus laus zis tuaj yeem muab cov ntaub ntawv biocompatible, yog li kev ua kom muaj peev xwm thiab kev sib koom ua ke ntawm 3D luam ntawv tuaj yeem siv tag nrho rau kev saib xyuas neeg mob thiab kev sim siab. Hauv kev kho mob, 3D luam ntawv yuav ua tau zoo heev rau kev ua haujlwm ntawm cov kws kho mob, cov kws tshawb fawb thiab cov cuab yeej siv kho mob, thiab dhau los ua lub platform zoo tshaj plaws rau kev tsim cov khoom kho mob tshiab. (kawg)