3D luam ntawv muaj ntau yam zoo, lub peev xwm los tsim cov txheej txheem nyuaj nrog cov ntsiab lus tsis sib xws yog nws qhov loj tshaj plaws, uas tuaj yeem txo qhov kev thov ntawm cov ntaub ntawv thiab txo qhov hnyav ntawm qhov chaw thaum ua kom lawv lub zog. Cov qauv tsim ntawm qhov chaw ua lub luag haujlwm tseem ceeb hauv kev muab kev ua si tag nrho rau qhov zoo ntawm 3D luam ntawv, uas xav kom peb rhuav tshem cov qauv tsim qauv thiab muab kev ua si tag nrho rau peb txoj kev xav thiab kev muaj tswv yim.
Ob peb 3D luam ntawv ib feem tsim tswv yim pom zoo.
1. Rau lub hom phiaj ntawm lub teeb yuag
Cov qauv tsim qauv yuav tsum tau ua kom zoo tshaj plaws topological ntawm qhov chaw hauv cov qauv. Qhov kom zoo dua ntawm topology optimization yog tias nws tseem tuaj yeem ua tau raws li qhov xav tau ntawm lub teeb yuag ntawm cov khoom thaum txo cov khoom siv. 3D luam ntawv yog qhov yooj yim tshaj plaws kev npaj rau topology optimization ntawm complex structural designs. Qhov no yog qhov tseem ceeb hauv thaj chaw aerospace thiab tuaj yeem txo qhov hnyav ntawm lub dav hlau. Ua piv txwv, qhov hnyav ntawm titanium alloy bracket tsim los ntawm cov cuab yeej siv niaj hnub yog 430.3g, thiab qhov hnyav yog txo los ntawm 22 feem pua tom qab kev txhim kho cov qauv tsim.
Tam sim no, lub teeb yuag feem ntau siv yog raws li hauv qab no:
●Truss/rigid thav duab qauv
Cov qauv thav duab nruj yog tsim los ntawm qee cov rods nyias txuas nrog qee cov nodes. Nws tuaj yeem ua tau raws li qhov xav tau ntawm lub cev lub zog, kev ruaj ntseg, thiab kev ntsuas tus kheej thaum txuag cov ntaub ntawv thiab paub txog cov kev xav tau luam ntawv.
Cov qauv truss yog ua los ntawm Al alloy los ntawm 3D luam ntawv. Qhov hnyav tag nrho yog 35 feem pua sib dua li ntawm kev tsim khoom ib txwm muaj, thiab qhov rigidity tau nce los ntawm 40 feem pua. Tsis tas li ntawd, muaj cov qauv tawv nqaij tawv tau los ntawm cov qauv truss, uas yog, sab nrauv yog cov qauv nyias-walled thiab sab hauv yog cov tswv cuab hinged. Cov qauv no tuaj yeem ua rau hauv daim ntawv nyias-walled thiab hinged txhawb nqa rods hauv 3D tshuab luam ntawv.
● Lattice Sandwich qauv
Cov yam ntxwv ntawm cov lattice sandwich qauv hauv cov txheej txheem ntawm kev txo qhov hnyav yog txhawm rau txhim kho cov qauv thiab tib lub sijhawm kom muaj zog txaus ntawm cov khoom. Hauv kev lag luam aerospace, lattice sandwich qauv feem ntau yog siv los ua ntau yam phab ntsa panels.
Cov khoom ntawm aero-engine lubricating system yog Ti-6Al-4V roj thiab roj sib cais. Nws txoj haujlwm ua haujlwm yog cais cov roj hauv cov roj rov qab. Lub porosity ntawm daim phiaj no yog siab li 95 feem pua, thiab qhov ceev yog txo mus rau 0.5g/cm2 thiaj li hais tias thaum cov roj thiab roj sib tov, cov roj me me yog adsorbed nyob rau hauv lub separator. Rolls-Royce siv cov qauv no kom ua tiav cov roj thiab cov roj sib cais kom siab li 99 feem pua.
Qhov teeb meem nrog cov qauv no yog tias cov hmoov hlau uas tsis muaj hmoov av ua raws li tus ncej thiab nws nyuaj rau tshem tawm thaum lub sijhawm tsim khoom.
● Hollow qauv
Cov qauv hollow yog tias lub plhaub yog hollow hauv cov phab ntsa nyias los yog cov qauv strut yooj yim ntxiv rau hauv. Qhov tsis zoo ntawm cov qauv no yog tias nws yuav tsum muaj kev txhawb nqa sab hauv, thiab kev txhawb nqa yog qhov nyuaj lossis tsis tuaj yeem tshem tawm.
2. Rau lub hom phiaj ntawm biocompatibility
Porous thiab cellular lug nyob rau hauv kev kho mob implants yuav tsum tau los ntawm-lub qhov qauv uas pab txhawb cov pob txha loj hlob thiab cell migration. Nyob rau tib lub sijhawm, txhawm rau kom tsis txhob muaj "kev nyuaj siab tiv thaiv" tshwm sim los ntawm qhov siab elastic modulus ntawm cov hlau, cov khoom siv kho tshuab ntawm cov cog cog tau lav kom phim cov pob txha tiag tiag. Nws yog qhov tsim nyog los tsim thiab tsim cov qauv ntxeem tau tshwj xeeb / cov qauv ntawm tes ntawm 3D luam ntawv, thiab ua tiav cov txheej txheem luam ntawv tom qab tsim hom, pore loj, pore phab ntsa thickness, thiab porosity raws li qhov xav tau.
● Porous qauv / cell qauv
Daim ntawv "Daim ntawv thov ntawm Powder Bed Fusion Technology hauv Kev Kho Mob Implant Fabrication" qhia plaub yam ntawm cov qauv ntxeem tau / cov qauv ntawm tes, uas zoo sib xws hauv cov qauv rau lattice sandwich qauv kom ua tau raws li qhov yuav tsum tau ua. Tab sis lub hom phiaj yog sib txawv, lub hom phiaj yog los xyuas kom meej tias cov khoom siv cog qoob loo uas muaj cov qauv tsim muaj biocompatibility zoo. Nws tau raug pov thawj los ntawm kev sim tshuaj lom neeg tias qhov kev cog hniav no muaj biocompatibility zoo, thiab cov pob txha loj loj hlob mus rau hauv cov qauv pore.
3. Lwm cov qauv tsim
●Space tshwj xeeb-zoo li lub raj xa dej qauv
Cov txheej txheem tsim khoom ntawm qhov chaw tshwj xeeb zoo li cov kav dej yog txhaj tshuaj molding, casting, thiab lwm yam. Ntxiv nrog rau cov nqi tsim khoom siab thiab lub voj voog ntev ntau lawm, cov txheej txheem ib txwm yog qhov nyuaj rau kev ua tiav cov txheej txheem spline nkhaus xav tau rau cov kav dej. Conformal txias tshuab ua ke nrog pwm ua nrog 3D luam ntawv los daws txoj hauv kev cov duab ntawm cov kav dej hauv qhov chaw tsim.
●Integrated complex qauv
Cov qauv kev sib xyaw ua ke tau muab faib ntxiv rau hauv cov txheej txheem zoo li qub thiab cov txheej txheem dynamic. Ntawm lawv, tus nto moo tshaj plaws zoo li qub mechanism tsim yog GE's roj injector. Cov yam ntxwv ntawm kev sib koom ua ke dynamic yog tias nws tsis muaj kev sib dhos thiab tuaj yeem paub qhov kev sib txuas dynamic. Cov khoom siv kho tshuab ib txwm xav tau luam tawm txhua daim ib kauj ruam los ntawm kauj ruam thiab tom qab ntawd sib sau ua ke ib daim. 3D luam ntawv tuaj yeem txuag cov kauj ruam sib dhos thiab ncaj qha tau txais kev sib dhos-dawb tag nrho cov txheej txheem. Hom neeg sawv cev - universal sib koom.
●Space free-form nto qauv
Cov qauv kev ywj pheej yog qhov nyuaj lossis tsis yooj yim rau tshuab siv cov txheej txheem ib txwm muaj.
Piv txwv li, cav hniav yog cov neeg sawv cev ntawm xws li nyias-walled thiab complex dawb-daim ntawv nto. Cov hniav npaj los ntawm cov txheej txheem casting ib txwm thiab CNC machining cov tswv yim muaj qhov tsis zoo ntawm cov khoom tsis zoo thiab kev ua haujlwm tsis zoo, feem. Additive manufacturing technology muab tej yam kev mob rau kev tsim cov hniav nrog siab geometric raug thiab zoo nto zoo. Tsis tas li ntawd, lub lattice sandwich qauv tuaj yeem ua ke nrog cov qauv dawb-dawb nto kom ua tiav lub hom phiaj ntawm lub teeb yuag nyuaj.