Yav tom ntej hauv hmoov

Swedish lub tuam txhab VBN Cheebtsam tsim cov khoom siv hlau siv cov cuab yeej siv ntxiv siv cov hmoov nrog cov khoom siv ntxiv, feem ntau yog cov cuab yeej xws li kev xyaum thiab cov milling cutters. 3D tshuab luam ntawv tshem tawm qhov kev xav tau ntawm forging thiab machining, txo cov khoom siv raw, thiab muab cov neeg siv kawg nrog kev xaiv dav ntawm cov khoom zoo.

Qhov kev thov ntawm VBN Cheebtsam suav nrog eg. Sib 290uas, raws li lub tuam txhab Swedish, yog lub hardest steel nyob rau hauv lub ntiaj teb no (72 HRC). Tus txheej txheem ntawm kev tsim Vibenite 290 yog maj mam nce cov hardness ntawm cov ntaub ntawv mus txog. Thaum cov khoom xav tau raug luam tawm los ntawm cov khoom siv raw, tsis muaj kev ua haujlwm ntxiv dua li kev sib tsoo lossis EDM. Tsis tas yuav tsum tau txiav, milling lossis drilling. Yog li, lub tuam txhab tsim cov khoom nrog qhov ntev txog li 200 x 200 x 380 mm, lub geometry uas tsis tuaj yeem tsim los siv lwm cov thev naus laus zis.

Hlau tsis yog ib txwm xav tau. Pab neeg tshawb fawb los ntawm HRL Laboratories tau tsim 3D luam ntawv daws teeb meem. aluminium alloys nrog lub zog siab. Nws yog hu ua nanofunctional txoj kev. Yooj yim muab, cov txheej txheem tshiab muaj nyob rau hauv kev siv cov hmoov tshwj xeeb nanofunctional rau lub tshuab luam ntawv 3D, uas tom qab ntawd "sintered" nrog lub laser nyias txheej, uas ua rau kev loj hlob ntawm cov khoom peb sab. Thaum lub sij hawm melting thiab solidification, cov txheej txheem tshwm sim tsis raug puas tsuaj thiab khaws lawv lub zog tag nrho vim yog cov nanoparticles ua qhov chaw nucleation rau lub hom phiaj microstructure ntawm cov hlau.

High-strength alloys xws li txhuas yog dav siv nyob rau hauv hnyav kev lag luam, aviation (xws li fuselage) technology thiab automotive qhov chaw. Cov thev naus laus zis tshiab ntawm nanofunctionalization muab lawv tsis tsuas yog lub zog siab, tab sis kuj muaj ntau yam duab thiab ntau thiab tsawg.

Ntxiv es tsis txhob rho tawm

Hauv cov txheej txheem hlau ua haujlwm ib txwm muaj, cov khoom pov tseg raug tshem tawm los ntawm machining. Cov txheej txheem ntxiv ua haujlwm rov qab - nws muaj kev thov thiab ntxiv cov txheej txheem ua tiav ntawm cov khoom siv me me, tsim XNUMXD qhov chaw ntawm yuav luag txhua cov duab raws li tus qauv digital.

Txawm hais tias cov txheej txheem no twb tau siv dav rau ob qho tib si prototyping thiab qauv casting, nws siv ncaj qha rau hauv kev tsim cov khoom lossis cov khoom siv rau kev ua lag luam tau nyuaj vim qhov ua haujlwm tsis zoo thiab cov khoom siv tsis zoo. Txawm li cas los xij, qhov xwm txheej no maj mam hloov ua tsaug rau kev ua haujlwm ntawm cov kws tshawb fawb hauv ntau lub chaw thoob ntiaj teb.

Los ntawm kev sim siab, ob lub thev naus laus zis tseem ceeb ntawm XNUMXD luam ntawv tau raug txhim kho: laser deposition ntawm hlau (LMD) i xaiv laser melting (ULM). Laser thev naus laus zis ua rau nws muaj peev xwm tsim cov ntsiab lus zoo thiab tau txais qhov zoo ntawm qhov zoo, uas tsis tuaj yeem ua tau nrog 50D electron beam luam ntawv (EBM). Nyob rau hauv SLM, lub ntsiab lus ntawm lub laser beam yog coj mus rau cov hmoov ntawm cov khoom, nyob rau hauv lub zos welding nws raws li ib tug muab qauv nrog ib tug raug ntawm 250 mus rau 3 microns. Nyob rau hauv lem, LMD siv lub laser los ua cov hmoov los ua tus kheej txhawb XNUMXD qauv.

Cov txheej txheem no tau ua pov thawj zoo heev rau kev tsim cov khoom siv dav hlau. thiab, tshwj xeeb tshaj yog, daim ntawv thov ntawm laser hlau deposition nthuav cov tsim muaj peev xwm rau aerospace Cheebtsam. Lawv tuaj yeem tsim los ntawm cov khoom siv nrog cov txheej txheem sab hauv thiab cov gradients tsis tuaj yeem ua tau yav dhau los. Tsis tas li ntawd, ob qho tib si laser technologies ua rau nws muaj peev xwm los tsim cov khoom ntawm complex geometry thiab tau txuas ntxiv functionality ntawm cov khoom los ntawm ntau yam alloys.

Lub Cuaj Hli dhau los, Airbus tshaj tawm tias nws tau nruab nws cov khoom tsim A350 XWB nrog kev luam ntawv ntxiv. titanium bracket, tsim los ntawm Arconic. Qhov no tsis yog qhov kawg, vim tias Arconic daim ntawv cog lus nrog Airbus muab rau 3D luam ntawv los ntawm titanium-nickel hmoov. lub cev qhov chaw i propulsion system. Txawm li cas los xij, nws yuav tsum raug sau tseg tias Arconic tsis siv tshuab laser, tab sis nws tus kheej txhim kho version ntawm EBM hluav taws xob arc.

Ib qho ntawm cov tseem ceeb hauv kev txhim kho cov thev naus laus zis ntxiv hauv kev ua haujlwm hlau zoo li yuav yog thawj tus qauv uas tau nthuav tawm ntawm lub hauv paus ntawm Dutch Damen Shipyards Group hauv lub caij nplooj zeeg xyoo 2017. nkoj kiv cua hlau alloy npe tom qab VAAMpeller. Tom qab kev ntsuam xyuas tsim nyog, feem ntau ntawm cov uas twb muaj lawm, tus qauv muaj lub caij nyoog kom tau txais kev pom zoo rau kev siv ntawm cov nkoj nkoj.

Raws li lub neej yav tom ntej ntawm metalworking technology nyob rau hauv stainless hlau hmoov los yog alloy Cheebtsam, nws yog tsim nyog los paub cov loj players nyob rau hauv lub lag luam no. Raws li "Additive Manufacturing Hlau Powder Market Report" luam tawm thaum lub Kaum Ib Hlis 2017, cov tuam txhab tseem ceeb tshaj plaws ntawm 3D luam ntawv hlau hmoov yog: GKN, Hitachi Chemical, Rio Tinto, ATI Powder Metals, Praxair, Arconic, Sandvik AB, Renishaw, Höganäs AB , Metaldyne Performance Group, BÖHLER Edelstahl, Carpenter Technology Corporation, Aubert & Duval.

Propeller luam WAAMpeller

Ua kua theem

Cov txheej txheem zoo tshaj plaws ntawm cov hlau ntxiv tam sim no tso siab rau kev siv cov hmoov (qhov no yog li cas cov vibenite tau hais los saum toj no yog tsim) "sintered" thiab laser-fused ntawm qhov kub siab uas yuav tsum tau ua rau cov khoom pib. Txawm li cas los xij, cov tswv yim tshiab tau tshwm sim. Cov kws tshawb fawb los ntawm Cryobiomedical Engineering Laboratory ntawm Suav Academy ntawm Kev Tshawb Fawb hauv Beijing tau tsim ib txoj hauv kev 3D luam ntawv nrog "ink", muaj ib tug hlau alloy nrog ib tug melting point me ntsis saum toj no chav tsev kub. Hauv kev tshawb fawb luam tawm nyob rau hauv phau ntawv Journal Science China Technological Sciences, cov kws tshawb fawb Liu Jing thiab Wang Lei qhia txog cov txheej txheem ua kua-theem luam ntawv ntawm gallium, bismuth, lossis indium-based alloys nrog ntxiv ntawm nanoparticles.

Piv nrog rau cov txheej txheem hlau tsim qauv, kua-theem 3D luam ntawv muaj ntau qhov zoo. Ua ntej, tus nqi siab ntawm kev tsim cov qauv peb sab tuaj yeem ua tiav. Tsis tas li ntawd, ntawm no koj tuaj yeem hloov kho qhov kub thiab txias ntawm lub coolant. Tsis tas li ntawd, cov khoom siv hluav taws xob ua kua tuaj yeem siv ua ke nrog cov khoom siv tsis yog xim hlau (xws li cov yas), uas nthuav tawm cov qauv tsim muaj rau cov khoom siv nyuaj.

Cov kws tshawb fawb ntawm American Northwestern University kuj tau tsim cov txheej txheem hlau 3D luam ntawv tshiab uas pheej yig dua thiab tsis yooj yim dua li yav tas los paub. Hloov cov hmoov hlau, lasers lossis electron beams, nws siv pa qhov cub i cov khoom ua kua. Tsis tas li ntawd, txoj kev ua haujlwm zoo rau ntau yam hlau, alloys, compounds, thiab oxides. Qhov no zoo ib yam li lub nozzle foob peb paub nrog cov yas. "Ink" muaj cov hmoov hlau yaj hauv cov khoom tshwj xeeb nrog kev sib ntxiv ntawm elastomer. Thaum lub sij hawm thov, nws yog nyob rau hauv chav tsev kub. Tom qab ntawd, txheej txheej ntawm cov khoom siv los ntawm lub nozzle yog sintered nrog cov txheej txheem dhau los ntawm qhov kub siab tsim nyob rau hauv qhov cub. Cov txheej txheem tau piav qhia hauv phau ntawv xov xwm tshwj xeeb Advanced Functional Materials.

Suav Liquid Metal Phase Printing Method

Xyoo 2016, Harvard cov kws tshawb fawb tau qhia lwm txoj hauv kev uas tuaj yeem tsim XNUMXD cov qauv hlau. luam tawm "hauv huab cua". Harvard University tau tsim lub tshuab luam ntawv 3D uas, tsis zoo li lwm tus, tsis tsim cov khoom los ntawm txheej, tab sis tsim cov txheej txheem nyuaj "hauv huab cua" - los ntawm cov hlau khov tam sim ntawd. Cov cuab yeej, tsim los ntawm John A. Paulson Tsev Kawm Ntawv ntawm Engineering thiab Applied Sciences, luam tawm cov khoom siv nyiaj nanoparticles. Lub tsom laser heats cov khoom thiab fuses nws, tsim ntau yam qauv xws li ib tug helix.

Kev lag luam xav tau rau cov neeg siv khoom zoo 3D luam tawm cov khoom siv xws li cov khoom siv kho mob thiab cov khoom siv dav hlau dav hlau loj hlob sai. Thiab vim tias cov ntaub ntawv cov khoom tuaj yeem muab faib rau lwm tus, cov tuam txhab thoob plaws ntiaj teb, yog tias lawv nkag mus rau cov hmoov hlau thiab cov tshuab luam ntawv 3D txoj cai, tuaj yeem ua haujlwm kom txo tau cov nqi thauj khoom thiab cov khoom muag. Raws li paub, cov txheej txheem piav qhia tau zoo heev pab txhawb kev tsim cov hlau qhov chaw ntawm txoj kev geometry, ua ntej ntawm cov khoom siv thev naus laus zis. Kev txhim kho ntawm cov ntawv tshwj xeeb yuav ua rau tus nqi qis dua thiab qhib rau kev siv 3D luam ntawv hauv cov ntawv thov ib yam nkaus.

Qhov nyuaj tshaj plaws Swedish hlau - rau 3D luam ntawv:

Cov hlau hnyav tshaj plaws hauv ntiaj teb - ua hauv Uppsala, Sweden

Aluminium zaj duab xis rau luam ntawv: 

Kev tawg hauv metallurgy: 3D luam ntawv ntawm lub zog siab aluminium