1. SLA
SLA yog kev lag luam3D luam ntawvlos yog additive manufacturing txheej txheem uas siv lub computer-tswj laser los tsim qhov chaw nyob rau hauv lub pas dej ua ke ntawm UV-kho tau photopolymer resin. Lub laser qhia tawm thiab kho qhov hla ntawm qhov tsim ntawm qhov chaw ntawm cov kua resin. Cov txheej txheem kho yog tom qab ntawd txo qis ncaj qha hauv qab cov kua resin nto thiab cov txheej txheem rov ua dua. Txhua txheej kho tshiab yog txuas rau txheej hauv qab nws. Cov txheej txheem no txuas ntxiv mus txog thaum qhov ua tiav.
Qhov zoo:Rau lub tswv yim qauv, cov qauv tshuaj pleev ib ce thiab cov qauv tsim, SLA tuaj yeem tsim cov khoom nrog cov geometries nyuaj thiab zoo heev nto tiav piv rau lwm cov txheej txheem ntxiv. Cov nqi sib tw thiab cov cuab yeej siv tau los ntawm ntau qhov chaw.
Qhov tsis zoo:Cov qauv qauv yuav tsis muaj zog npaum li cov khoom ua los ntawm qib engineering resins, yog li cov khoom siv SLA muaj kev txwv siv hauv kev sim ua haujlwm. Tsis tas li ntawd, thaum qhov chaw raug UV cycles los kho qhov chaw sab nrauv ntawm qhov chaw, ib feem ua rau hauv SLA yuav tsum tau siv nrog tsawg heev UV thiab av noo los tiv thaiv degradation.
2. SLS
Nyob rau hauv cov txheej txheem SLS, lub tshuab computer tswj laser yog kos los ntawm hauv qab mus rau sab saum toj mus rau lub txaj kub ntawm nylon-based hmoov, uas yog maj mam sintered (fused) rau hauv ib qho khoom. Tom qab txhua txheej, cov menyuam nteg ib txheej tshiab ntawm cov hmoov rau saum lub txaj thiab cov txheej txheem rov ua dua.SLS siv cov nylon nruj lossis hloov tau TPU hmoov, zoo ib yam li cov khoom siv hluav taws xob tiag tiag, yog li cov khoom muaj ntau dua toughness thiab precision, tab sis muaj ib tug Cov nplais ntxhib thiab tsis muaj cov ntsiab lus zoo.SLS muaj cov khoom tsim loj, tso cai rau kev tsim cov khoom nrog cov geometries nyuaj heev thiab tsim cov qauv ruaj khov.
Qhov zoo:SLS qhov chaw zoo li qhov tseeb thiab ruaj khov dua li SLA qhov chaw. Cov txheej txheem tuaj yeem tsim cov khoom ruaj khov nrog cov geometry nyuaj thiab tsim nyog rau qee qhov kev sim ua haujlwm.
Qhov tsis zoo:Cov khoom muaj cov nplej lossis cov xuab zeb zoo nkauj thiab cov txheej txheem resin xaiv tau txwv.
3. CNC
Hauv machining, ib qho khoom thaiv (los yog bar) ntawm yas lossis hlau yog clamped rau aCNC milling tshuablos yog tig tshuab thiab txiav rau hauv cov khoom tiav los ntawm kev rho tawm machining, feem. Txoj kev no feem ntau ua rau lub zog ntau dua thiab ua tiav saum npoo dua li cov txheej txheem tsim khoom ntxiv. Nws kuj muaj tag nrho, homogeneous khoom ntawm yas raws li nws yog tsim los ntawm extruded los yog compression molded khoom blocks ntawm thermoplastic resin, nyob rau hauv sib piv rau feem ntau additive txheej txheem, uas siv cov ntaub ntawv zoo li yas thiab tsim nyob rau hauv txheej. Qhov ntau ntawm cov khoom xaiv tso cai rau ib feem kom muaj cov khoom uas xav tau xws li: tensile lub zog, cuam tshuam tsis kam, kub deflection kub, tshuaj tiv thaiv thiab biocompatibility. Kev kam rau siab ua tau zoo tsim qhov chaw, jigs thiab fixtures haum rau haum thiab ua haujlwm kuaj, nrog rau cov khoom siv rau kev siv kawg.
Qhov zoo:Vim yog kev siv engineering qib thermoplastics thiab hlau hauv CNC machining, qhov chaw muaj qhov zoo nkauj tiav thiab muaj zog heev.
Qhov tsis zoo:CNC machining tuaj yeem muaj qee qhov kev txwv geometric thiab qee zaum nws kim dua los ua qhov haujlwm no hauv tsev dua li txheej txheem luam ntawv 3D. Milling nibbles tej zaum yuav nyuaj vim tias cov txheej txheem tshem tawm cov khoom es tsis ntxiv nws.
4. Txhaj tshuaj molding
Kev txhaj tshuaj sai saiua haujlwm los ntawm kev txhaj tshuaj thermoplastic resin rau hauv pwm thiab qhov ua rau cov txheej txheem 'ceev' yog cov cuab yeej siv los tsim cov pwm, uas feem ntau yog ua los ntawm txhuas es tsis yog cov hlau ib txwm siv los tsim cov pwm. Cov molded qhov chaw muaj zog thiab muaj qhov zoo tshaj plaws nto tiav. Qhov no kuj yog cov txheej txheem kev lag luam txheej txheem tsim khoom rau cov khoom yas, yog li muaj qhov txiaj ntsig zoo rau prototyping hauv tib txoj kev yog tias muaj xwm txheej tso cai. Yuav luag txhua qib engineering yas lossis kua silicone roj hmab (LSR) tuaj yeem siv tau, yog li cov neeg tsim qauv tsis txwv los ntawm cov ntaub ntawv siv hauv cov txheej txheem prototyping.
Qhov zoo:Moulded qhov chaw ua los ntawm ntau yam ntawm engineering qib cov ntaub ntawv nrog zoo heev nto finishes yog ib tug zoo heev predator ntawm manufacturability nyob rau theem ntau lawm.
Qhov tsis zoo:Tus nqi pib cov cuab yeej cuam tshuam nrog kev txhaj tshuaj sai sai tsis tshwm sim hauv cov txheej txheem ntxiv lossis CNC machining. Yog li ntawd, nyob rau hauv feem ntau, nws ua rau kev txiav txim siab ua ib los yog ob lub sij hawm ntawm prototyping ceev ceev (subtractive los yog additive) los xyuas kom haum thiab ua hauj lwm ua ntej mus rau txhaj molding.
Post lub sij hawm: Dec-14-2022
