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Chithunzi cha 3dpbm chaukadaulo wopanga zowonjezera za ceramic »

Tekinoloje zonse zamalonda za ceramic AM pamapu a 3dpbm a Ceramic Additive Manufacturing (kuchokera ku 3dpbm yomwe yangotulutsidwa kumene ndi Ceramic Additive Manufacturing Opportunities and Trends report) idatengera njira yomangirira tinthu tating'ono ta ceramic mu mawonekedwe a chinthu cha 3D, kenako ndikuziyika. mizati mu Sintering mu ng'anjo - processing sitepe.Mosiyana ndi zitsulo AM, yomwe ndi banja latsopano ndi lodziimira pa matekinoloje, zonse za ceramic AM hardware teknoloji imachokera ku banja la zipangizo zomangira. , koma amatsegulanso mwayi kwa akutulukira zitsulo AM matekinoloje (zomangira filament, zitsulo binder jetting) amene amagwira ntchito mofananamo. Komanso, ngakhale amafuna sintering mu ng'anjo, ambiri bonded zinthu matekinoloje amaonedwa producible. ndipo ikupitiliza kusinthika ngati njira yopangira, komanso yopangira ma prototyping, m'malo mwa njira yopangira ma prototyping yomwe ikupanga kupanga (monga momwe zilili ndi matekinoloje ambiri opanga ma polima ndi zitsulo).
Chinthu china chowoneka chodabwitsa (ndipo mwinamwake chokhumudwitsa) ndi chakuti pakali pano palibe njira yogulitsa ufa yopangira bedi ya ceramics. Komabe, zovuta zomwe zimagwirizanitsidwa ndi laser sintering ya ceramics, makamaka chifukwa cha kutentha kwambiri komwe kumafunika kusungunuka kapena kusungunula ufa wa ceramic, zalepheretsa njirazi kukhala mwayi wogulitsa malonda. omwe ma lasers amagwira ntchito pazinthu zophatikizidwa ndi ufa wa ceramic munjira imodzi, adayesedwa, koma mpaka pano akhala ndi kupambana kochepa pazamalonda.
Komabe, monga makampani opanga zitsulo azindikira kuti jetting yomangira imatha kupereka mitengo yofulumira kwambiri, matekinoloje opangira zida za ceramic (monga momwe zikuwonetsedwera pa mapu a 3dpbm opangira zida za ceramic) apita patsogolo kwambiri pantchitoyi. akuyamba kuvomereza kuti kuphatikiza ukadaulo wa waya kungapereke njira zotsika mtengo kwambiri komanso zokomera ofesi, ukadaulo womwewo ukhoza mosavuta (ndipo) ukugwiritsidwa ntchito ku ceramics.Pomaliza, monga zitsulo zopangira zitsulo zopangira zida zimapeza luso lapamwamba kwambiri lophatikizidwa ndi metal paste stereolithography, ukadaulo uwu wapeza ntchito yabwino pakupanga zowonjezera za ceramic.
Ngakhale kuti ndondomeko ya stereolithography (SLA) imagwirizana kwambiri ndi zipangizo zosindikizira za polima 3D, ndondomekoyi ndi yoyeneranso kupanga zigawo za ceramic.Monga momwe Ceramic Additive Manufacturing Technology Map, stereolithography ndi teknoloji yodziwika kwambiri komanso yodalirika ya zipangizo za ceramic zosindikizira za 3D. Mu Ceramic Stereolithography process, ceramic slurry layer yopangidwa ndi monomer resin yokhala ndi zinthu zambiri za ceramic imachiritsidwa pogwiritsa ntchito gwero la kuwala.Kuwalaku kumasiyana ndi ukadaulo.Mwachitsanzo, machitidwe a SLA adzagwiritsa ntchito ma lasers kuchiritsa phala, pomwe osindikiza a DLP amadalira. pa digito micromirror projectors.The monomer resin kuumitsa pamene akupezeka ndi kuwala gwero (a photopolymerization ndondomeko), kumanga particles ceramic mkati polima matrix.Chifukwa ceramic stereolithography ndondomeko imapanga zobiriwira zosindikizidwa, nthawi zambiri amatsagana ndi post-processing, kuphatikizapo kutentha mankhwala kuchotsa zomangira ndi sintering kupanga wandiweyani mbali za ceramic.
Binder jetting imagwiritsa ntchito kusankha madzimadzi omangiriza kulumikiza zinthu za ufa mu layers.Izofanana ndi kusindikiza kwa inkjet, koma m'malo mogwiritsa ntchito inki papepala kuti mupange chinthu chamitundu iwiri, chosindikizira cha jet chomangira chimamangiriza zigawo za ufa. pangani chinthu chamitundu itatu.Muukadaulo wopangira zida zowonjezera za ceramic, jetting binder imapewa zolakwika zodziwika bwino ndikupangitsa kuti pakhale mawonekedwe ovuta.Ubwino wina umaphatikizapo gawo lothandizira kuchokera ku ufa wozungulira, kumasuka kwa degreasing ndi kuyenerera kwa zigawo zazikulu ndi zamankhwala.Common Zida monga mchenga ndi simenti, zoumba zaumisiri monga silicon carbide ndi boron carbide, komanso pang'ono zoumba za oxide monga aluminiyamu ndi zirconia. zakuthupi, njira yolumikizirana ndi makina, ndi masitepe pambuyo pokonza monga de-ufa ndi densification.
Fused filament fabrication (FFF) ndiyo njira yodziwika kwambiri yosindikizira ya 3D chifukwa cha osindikiza ake otsika mtengo komanso zida zambiri zomwe zilipo.Kusindikiza zida za ceramic kudzera mu FFF, makampani angapo apanga zida za ceramic zodzaza kwambiri (za ceramic mu thermoplastic matrices) ndikuyambitsa njira yonse. Nthawi zambiri, zida zokhala ndi 50% ceramic content zitha kusindikizidwa ndi kukula kwa nozzle zazing'ono ngati ma microns 150. Makulidwe osanjikiza a ma microns 80 ndi m'lifupi mwake ma microns 160 atha kupezedwa pogwiritsa ntchito mawonekedwe owonekera. Komabe, magawo osindikizidwa ndi njira iyi. sizinakwaniritsidwe kachulukidwe ka post-sintered ofanana ndi stereolithography kapena ceramic jekeseni akamaumba, kuchepetsa osiyanasiyana ntchito zotheka m'munda wa zipangizo zadothi zapamwamba.During extrusion ndi deposition kusindikiza, mabowo ndi cavities akuyambitsidwa, ngakhale izi zikhoza kuthetsedwa pang'onopang'ono ndi mochulukira. zida zoyendetsera njira zanzeru.Zoperekedwa ndi makampani omwe akuwonetsedwa mu Ceramic AM Technology Map, FF F pakadali pano imapereka njira yodalirika yopangira ma prototypes a ceramic kapena tinthu tating'ono tating'ono tating'ono tadothi tadothi.
Njira ya pneumatic extrusion imagwiritsa ntchito mphamvu ya mpweya kuti itulutse zinthu m'magulu, ndipo makina osindikizira amafanana ndi omwe amagwiritsidwa ntchito muzitsulo za thermoplastic extrusion.Zinthu zogwirizana zimaphatikizapo zoumba zachikhalidwe monga dongo ndi mbiya (komanso thermosets ndi bioprinting zipangizo monga bioinks ndi hydrogels. .Mu ceramic zowonjezera kupanga, pneumatic extrusion ingakhale yoyenera kwambiri pazaluso ndi kapangidwe ka ntchito. Njirayi imagwiritsa ntchito kukakamiza komwe kumaperekedwa ndi mpweya woponderezedwa kapena syringe kuti itulutse ndikuyika mosankha ceramic slurry.Phala ili, lofanana ndi phala lomwe limagwiritsidwa ntchito mu zoumba ndi manja, ndi chisakanizo cha ceramic ufa ndi madzi mu gawo kuti ndi madzi okwanira kuti extrude koma wandiweyani mokwanira wosanjikiza mu zigawo popanda collapsing.Pneumatic extrusion machitidwe akhoza kukhala osindikiza oima-okha anamanga makamaka zadothi (Cartesian kapena, zambiri zambiri, triangular), kapena ngati zida zowonjezera ku osindikiza wamba a thermoplastic extrusion 3D.
Kujambula kwazinthu kungathe kuonedwa kuti ndi mtundu wapamwamba kwambiri wa 3D wosindikizira wa 3D komanso womwe umathandiza kuti makina osindikizira a voxel azitha kwambiri. Jetting process imaphatikizidwa ndi extrusion kapena binder jetting.Woyimilira yekhayo waukadaulo wopanga ma jetting muzoumba ndi kampani ya Israeli XJet, monga momwe zikuwonetsedwera pa mapu a 3dpbm aukadaulo wopangira zida za ceramic.The XJet NanoParticle jetting process imagwiritsa ntchito zitsulo zachitsulo zosakanizidwa ndi madzi kupanga. yankho lomwe lingathe kukhala lolimba komanso lamadzimadzi. Njira yothetsera vutoli imapopera pa nsanja yotentha ndipo imakhazikika pamene madzi amatuluka, kupanga gawo lobiriwira. Kupanga ma geometries ovuta. Gawo lobiriwira limayikidwa mu ng'anjo pambuyo pokonza, zomwe zimapangitsa mkulu osalimba gawo.
Kafukufuku wamsika wopangidwa ndi 3dpbm Research akuwunikira mozama komanso kulosera za zowonjezera za ceramic…
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Nthawi yotumiza: Mar-18-2022