Tese takavaka majecha pamahombekombe: madziro ane simba, shongwe dzakanaka, moats izere ne shark.

Tese takavaka majecha pamahombekombe egungwa: madziro ane simba, shongwe huru, moats izere neshaki.Kana iwe uri chero chinhu chakaita seni, iwe uchashamisika kuti mvura shoma inonamira sei pamwe chete - kanenge kusvika mukoma wako mukuru aratidza uye akakava mukuputika kwemufaro unoparadza.
Muzvinabhizimusi Dan Gelbart anoshandisawo mvura kubatanidza zvinhu, kunyangwe dhizaini yake yakasimba zvakanyanya kupfuura yekupera kwevhiki kumahombekombe egungwa.
Semutungamiri uye muvambi weRapidia Tech Inc., mutengesi wesimbi 3D kudhinda masisitimu muVancouver, British Columbia, uye Libertyville, Illinois, Gelbart yakagadzira chikamu chekugadzira nzira inobvisa nhanho dzinotora nguva dziripo mukukwikwidza tekinoroji uku ichirerutsa kubviswa kwetsigiro..
Izvo zvakare zvinoita kuti kujoinha zvikamu zvakawanda kusanyanya kuoma pane kungozvinyudza mumvura zvishoma uye nekuzvibatanidza pamwechete-kunyangwe zvikamu zvakagadzirwa nemaitiro echinyakare ekugadzira.
Gelbart anokurukura mimwe misiyano yakakosha pakati pemvura yake yakavakirwa masisitimu neaya anoshandisa simbi hupfu ine 20% kusvika 30% wakisi uye polymer (nehuwandu).Rapidia ine musoro miviri simbi 3D printers inogadzira namira kubva kusimbi hupfu, mvura uye resin binder muhuwandu hunobva pa0.3 kusvika 0.4%.
Nekuda kweizvi, akatsanangura, nzira yekubvisa inodiwa nekukwikwidza tekinoroji, iyo inowanzotora mazuva akati wandei, inobviswa uye chikamu chinogona kutumirwa zvakananga kuchoto chinopisa.
Mamwe maitiro akanyanya muindasitiri ye "yakareba-yakamira jekiseni molding (MIM) inoda zvidimbu zvisina kupindirwa kuti zvive nehupamhi hwepolymer kuitira kuti vasunungurwe kubva mukuumbwa," akadaro Gelbart."Zvisinei, huwandu hwepolymer hunodiwa kubatanidza zvikamu zvekudhinda kwe3D hushoma kwazvo - chikamu chimwe mugumi chezana chinokwana kazhinji."
Saka sei kunwa mvura?Sezvakaitwa nemuenzaniso wedu wesandcastle unoshandiswa kugadzira paste (simbi paste mune iyi kesi), iyo polima inobata zvidimbu pamwechete sezvazvinooma.Chigumisiro chikamu chine kusimba uye kuoma kwechoko yemugwagwa, yakasimba zvakakwana kuti ikwanise kumira mushure mekugadzira machining, machining akapfava (kunyangwe Gelbart anokurudzira post-sinter machining), kusangana nemvura nezvimwe zvikamu zvisina kupera, uye inotumirwa kuchoto.
Kubvisa degreasing zvakare kunobvumira zvikamu zvakakura, zvakakora-madziro kuti zvidhindwe nekuti kana uchishandisa simbi hupfu hwakaiswa nepolymer, iyo polima haigone "kupisa" kana chikamu madziro akanyanya kukora.
Gelbart akati mumwe mugadziri wemidziyo anoda madziro makobvu e6mm kana pasi.“Saka toti uri kugadzira chikamu chakakura sembeva yekombuta.Muchiitiko chakadaro, mukati chaimo chaizoda kunge chine mhango kana zvimwe mhando yemambure.Izvi zvakanakira maapplication mazhinji, kunyangwe kureruka ndicho chinangwa.Asi kana simba romuviri richidikanwa sebhaudhi kana kuti chimwe chikamu chakasimba zvikuru, ipapo [jekiseni reupfu hwesimbi] kana kuti MIM kazhinji kazhinji hazvina kukodzera.”
Mufananidzo uchangobva kudhindwa wakawanda unoratidza zvakaoma zvemukati zvinogona kuburitswa neRapidia printer.
Gelbart anonongedza zvimwe zvakati wandei zveprinta.Makatuji ane simbi paste anozadzwazve uye vashandisi vanovadzosera kuRapidia kuti vadzorerwe vanogamuchira mapoinzi echero chinhu chisina kushandiswa.
Zvinhu zvakasiyana-siyana zviripo, zvinosanganisira 316 uye 17-4PH simbi isina tsvina, INCONEL 625, ceramic uye zirconia, pamwe nemhangura, tungsten carbide uye zvimwe zvinhu zvakati wandei mukusimudzira.Zvishandiso zvekutsigira - chinhu chakavanzika mumaprinta mazhinji esimbi - zvakagadzirirwa kudhinda ma substrates anogona kubviswa kana "evaporated" nemaoko, achivhura musuwo kune zvimwe zvisinga gadzirike mukati.
Rapidia anga ari mubhizinesi kwemakore mana uye, zvinobvumwa, achangotanga."Kambani iri kutora nguva yayo kugadzirisa zvinhu," akadaro Gelbart.
Parizvino, iye nechikwata chake vakaisa masisitimu mashanu, kusanganisira imwe kuSelkirk Technology Access Center (STAC) muBritish Columbia.Muongorori Jason Taylor anga achishandisa muchina uyu kubva mukupera kwaNdira uye akaona akawanda mabhenefiti pamusoro peakawanda aripo STAC 3D maprinta.
Akacherekedza kuti kugona "kunamira pamwe chete nemvura" zvidimbu zvakasvibirira zvisati zvaita sintering zvine mukana mukuru.Anoziva zvakare nezvenyaya dzine chekuita nekubvisa mafuta, kusanganisira kushandiswa uye kuraswa kwemakemikari.Nepo zvibvumirano zvekusaburitsa pachena zvichitadzisa Taylor kugovera ruzivo rwezvakawanda zvebasa rake ipapo, chirongwa chake chekutanga chekuyedza chimwe chinhu chingafungwa nevazhinji vedu: tsvimbo yakadhindwa ye3D.
“Zvakazova zvakanaka,” akadaro achinyemwerera.“Takapedzisa kumeso, tikaboora maburi emugodhi, ndiri kuishandisa izvozvi.Isu tinofadzwa nemhando yebasa rakaitwa nehurongwa hutsva.Sezvimwe zvikamu zvese zvakasimwa, pane imwe shrinkage uye kunyange zvishoma kusarongeka, asi muchina wacho wakakwana.Sezvineiwo, isu tinogona kutsiva matambudziko aya mukugadzira.
Iyo Additive Report inotarisa pakushandiswa kwekuwedzera kwekugadzira matekinoroji mukugadzirwa chaiko.Vagadziri nhasi vari kushandisa 3D kudhinda kugadzira maturusi uye zvigadziriso, uye vamwe vari kutoshandisa AM pakugadzira vhoriyamu yakakwirira.Nyaya dzavo dzichataurwa pano.


Nguva yekutumira: Aug-23-2022
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