Cov ntawv tshaj tawm -kev ua cov hlau 3D luam ntawv puas tuaj yeem raug tshem tawm ib nrab?

Ib, Lub tswv yim tseem ceeb ntawm kev tshaj tawm - kev ua haujlwm yog mus los ntawm "usable" mus rau "txhim kho."
Thaum koj 3D luam ntawv hlau, koj yaj hlau hmoov lossis hlau txheej los ntawm txheej. Qhov no tuaj yeem ua rau muaj teeb meem nrog rau qhov seem seem, qhov tsis zoo me me, thiab qhov chaw ntxhib. Lub hom phiaj tseem ceeb ntawm kev tshaj tawm - kev ua haujlwm yog los kho cov "qhov tsis txaus" no:

Tshem tawm ntawm qhov kev ntxhov siab uas seem: Cov cua txias ceev thaum lub sij hawm luam ntawv yuav ua rau muaj kev ntxhov siab sab hauv uas tuaj yeem ua rau qhov chaw khoov lossis tawg. Yog hais tias lub turbine blades ntawm lub dav hlau cav tsis kho los tiv thaiv overheating, cov residual kev nyuaj siab tuaj yeem ncav cuag 60% ntawm cov khoom yield zog. Qhov no tuaj yeem ua rau cov hniav tawg sai sai thaum lub cav khiav.
Txhim khu kev ua haujlwm zoo: Kev kho cua sov, xws li kev daws teeb meem + kev laus, tuaj yeem ua rau cov nplej me me, ua kom muaj zog rau cov theem tsim, thiab nce lub zog tensile ntawm titanium alloy los ntawm 800MPa mus rau 1200MPa, uas yog dab tsi aeronautical load-cov kabmob xav tau.
Ua kom lub ntsej muag zoo dua: Los ntawm sandblasting, polishing, thiab lwm txoj kev, koj tuaj yeem txo qhov roughness ntawm Ra12.5 μm mus rau Ra0.4 μ m thiab tshem tawm ntawm interlayer bonding kab. Qhov no ua rau cov implants biocompatible.
Kev kaw qhov tsis xws luag: Kub isostatic nias (HIP) thev naus laus zis compresses qhov hws ntawm qhov kub thiab txias, ua rau cov khoom ntom ntom yuav luag 100% thiab txuas ntxiv nws lub neej qaug zog.
2, Qhov ua tau ntawm ib nrab hla ncej- ua tiav: ib qho xwm txheej- tsav tsheb sib txawv
Txawm hais tias kev tshaj tawm - tsim nyog ua tiav, muaj qee lub sijhawm thaum "sab rho tawm" tuaj yeem ua tiav los ntawm kev ua kom zoo dua lossis cov ntaub ntawv tshiab:

1. Tshem tawm cov kev txhawb nqa: los ntawm "yuav tsum tau" mus rau "optional"
Txhawm rau kom tshem tawm cov khoom los ntawm kev poob, cov khoom siv hlau 3D luam ntawv xav tau kev txhawb nqa. Txawm li cas los xij, kev tshem tawm cov kev txhawb nqa tuaj yeem ua rau cov khoom seem. Nrog kaw - voj voog lub pas dej ua ke tswj thiab tsis yog - tiv tauj hmoov faib, VELO 3D cov tshuab luam ntawv tsis txhawb nqa tau ua txhaum "45℃txoj cai." Nws tuaj yeem luam tawm cov txheej txheem nyuaj nrog lub taub sab hauv txog li 100mm yam tsis xav tau kev txhawb nqa. Piv txwv li, cov ntawv luam tawm sab hauv ntawm lub tshav kub exchanger muaj qhov smoothness ntawm Ra3.2 μ m, uas ua tau raws li cov txheej txheem sealing kua tam sim ntawd. Qhov no txhais tau hais tias tsis tas yuav tshem tawm kev txhawb nqa thiab polish qhov chaw dua.

2. Kev kho deg: los ntawm "zoo polishing" mus rau "functional orientation"
Rau cov cheeb tsam uas tsis qhia los yog qhov chaw uas nyob rau hauv lub ntws channel, lub nto roughness yuav so me ntsis. Piv txwv li:

Automotive ncua kev kawm ntawv qhov chaw: Los ntawm kev hloov cov chaw luam ntawv (xws li txheej thickness mus rau 0.1mm thiab scanning ceev mus rau 1000mm / s), lub nto roughness yog khaws cia nyob rau hauv Ra6.3 μ m, uas ua tau raws li cov kev cai hnav tsis kam thiab hla lub sandblasting theem.
Roj nozzle rau lub cav dav hlau: Sab hauv ntws channel qhov roughness yog Ra8 μ m tom qab laser xaiv melting (SLM) luam ntawv. Los ntawm cov kua simulation, cov roj atomisation nyhuv ua tiav cov qauv, yog li tsis tas yuav polishing ntxiv.
3. Kev kho cua sov: los ntawm "tag nrho cov txheej txheem" ​​mus rau "customisation ntawm kev thov"
Kev kho cua sov tuaj yeem ua rau cov khoom ua haujlwm zoo dua, tab sis nws tuaj yeem cuam tshuam qhov loj lossis xim ntawm daim. Cov xwm txheej hauv qab no tuaj yeem tawm los yog ua kom kho cua sov yooj yim dua:

Cov khoom siv hlau zoo nkauj, zoo li 3D- luam tawm titanium alloy jewellery, tsis tas yuav nyuaj, yog li cov khoom siv kho mob tuaj yeem hla kom cov hlau ci.
Rau qis-kev siv kub, xws li aluminium alloy brackets siv nyob rau hauv qhov chaw nrog qhov kub thiab txias li -40 degree, residual stress yog khaws cia nyob rau hauv ib tug muaj kev ruaj ntseg ntau yam los ntawm optimizing printing tej yam kev mob (xws li preheating lub substrate rau 200 degree), yog li tsis tas yuav muaj kev ntxhov siab rau annealing.
Thaum lub sij hawm tshawb fawb thiab kev loj hlob theem, qhov chaw uas tsis tau cua sov- kho tuaj yeem tshawb xyuas sai yog tias tus qauv tsim ua haujlwm thiab ua kom lub voj voog rov ua dua.
4. Tshem tawm thiab rov ua dua cov hmoov nplej: los ntawm "kev tuav haujlwm" mus rau "automated integration"
Tshem tawm thiab tshuaj xyuas cov hmoov yuav siv sij hawm ntau heev thaum lub sij hawm cov hmoov txheej melting. Platinum BLT-S800 muaj cov hmoov rov qab tsis siv neeg uas cia cov hmoov ntws mus rau hauv lub voj kaw hauv tsev. Qhov no ua rau nws 80% ntau dua ntawm kev tshem cov hmoov thiab tshem tawm qee cov txheej txheem tshuaj xyuas tib neeg.

3, Tsis quav ntsej txog kev pheej hmoo thiab kev txwv ntawm kev tshaj tawm - kev ua tiav: ib qho kev qhia txog kev ua tiav thev naus laus zis
Nws muaj peev xwm txuag tau nyiaj los ntawm kev tsis ua tag nrho cov ntawv tshaj tawm - ua tiav, tab sis muaj qee qhov kev txhawj xeeb uas yuav tsum tau khaws cia hauv siab:

Kev ua tau zoo degradation: Nickel-raws li siab- kub alloy qhov chaw uas tsis kho tej zaum yuav poob 30% ntawm lawv qhov siab- qhov kub thiab txias, uas tsis muaj zog txaus rau cov tshuab dav hlau.
Kev ntseeg tau poob qis: Titanium alloy implants uas tsis tau kho nrog HIP tej zaum yuav muaj 50% lub neej qaug zog luv, uas ua rau muaj feem ntawm kev kho mob tsis ua haujlwm.
Teeb meem nrog kev ua raws: Muaj cov qauv ntawv pov thawj nruj rau cov khoom hauv kev lag luam xws li kev kho mob thiab aviation (xws li ASTM F2924), thiab hla qhov tseem ceeb tshaj tawm - cov kauj ruam ua tiav tuaj yeem txhais tau tias ua tsis tiav qhov kev xeem.
Kev lag luam kev coj ua tau ua pov thawj tias qhov muaj peev xwm ntawm kev tso tseg tom ntej- kev ua haujlwm yog nyob ntawm qhov kev loj hlob ntawm thev naus laus zis thiab qhov xwm txheej ntawm qhov ua siab ntev. Piv txwv li, GE Additive's Concept Laser M2 cov cuab yeej txiav cov kev ntxhov siab nyob hauv cov hlau tsis muaj steel los ntawm 40% los ntawm kev siv cov txheej txheem scan zoo dua. Qee qhov chaw tseem tuaj yeem hla kev ntxhov siab nyem annealing. Txawm li cas los xij, kev cog qoob loo kho mob tseem xav tau cov txheej txheem kev kho cua sov tag nrho thiab kev tiv thaiv saum npoo kom muaj kev nyab xeeb rau kev siv roj ntsha.