Tonse tamanga mchenga pamphepete mwa nyanja: makoma amphamvu, nsanja zazikulu, ngalande zodzaza ndi shaki.

Tonse tamangapo mchenga m'mphepete mwa nyanja: makoma amphamvu, nsanja zazikulu, ngalande zodzaza ndi shaki.Ngati muli ngati ine, mudzadabwa momwe madzi pang'ono amamatira pamodzi - mpaka mchimwene wanu wamkulu awonekere ndikukankha mu chisangalalo chowononga.
Wamalonda Dan Gelbart amagwiritsanso ntchito madzi kuti agwirizane ndi zipangizo, ngakhale kuti mapangidwe ake ndi olimba kwambiri kuposa chiwonetsero chakumapeto kwa sabata.
Monga purezidenti komanso woyambitsa Rapidia Tech Inc., yemwe amapereka makina osindikizira azitsulo a 3D ku Vancouver, British Columbia, ndi Libertyville, Illinois, Gelbart wapanga njira yopangira gawo yomwe imachotsa njira zowonongera nthawi zomwe zimatengera matekinoloje opikisana pomwe amathandizira kwambiri kuchotsa thandizo..
Zimapangitsanso kujowina magawo angapo kukhala kovuta kwambiri kuposa kungowaviika m'madzi pang'ono ndikumamatira palimodzi-ngakhale magawo opangidwa ndi njira zachikhalidwe zopangira.
Gelbart akukamba za kusiyana kwakukulu pakati pa makina ake opangira madzi ndi omwe amagwiritsa ntchito ufa wachitsulo wokhala ndi 20% mpaka 30% sera ndi polima (ndi voliyumu).Rapidia mitu iwiri zitsulo 3D osindikiza kutulutsa phala kuchokera zitsulo ufa, madzi ndi utomoni binder mu ndalama kuyambira 0,3 kuti 0,4%.
Chifukwa cha izi, adalongosola, njira yochepetsera yomwe imafunidwa ndi matekinoloje opikisana, omwe nthawi zambiri amatenga masiku angapo, amachotsedwa ndipo gawolo likhoza kutumizidwa molunjika ku uvuni wa sintering.
Njira zina zimakhala mu "makampani opangira jekeseni wautali (MIM) omwe amafunikira kuti ziwalo zosasunthika zikhale ndi ma polima ambiri kuti azitha kumasulidwa ku nkhungu," adatero Gelbart."Komabe, kuchuluka kwa ma polima ofunikira kuti agwirizane ndi zida zosindikizira za 3D ndizochepa kwambiri - gawo limodzi mwa magawo khumi pa zana lililonse limakwanira nthawi zambiri."
Nanga bwanji kumwa madzi?Mofanana ndi chitsanzo chathu cha sandcastle chomwe chimagwiritsidwa ntchito popanga phala (zitsulo zachitsulo pamenepa), polima amagwirizanitsa zidutswazo pamene ziuma.Chotsatira chake ndi gawo limodzi ndi kusasinthika ndi kuuma kwa choko cham'mbali mwamsewu, cholimba mokwanira kupirira machining a pambuyo pa msonkhano, kukonza mwaulemu (ngakhale Gelbart amalimbikitsa makina a post-sinter), kusonkhana ndi madzi ndi mbali zina zosamalizidwa, ndikutumizidwa ku uvuni.
Kuchotsa degreasing kumathandizanso kuti zigawo zazikulu, zolimba-mipanda zisindikizidwe chifukwa pogwiritsira ntchito ufa wachitsulo wopangidwa ndi polima, polima sangathe "kutentha" ngati makoma a mbaliyo ndi ochuluka kwambiri.
Gelbart adanena kuti wopanga zida m'modzi amafunikira makulidwe a khoma la 6mm kapena kuchepera.“Ndiye tiyerekeze kuti mukupanga gawo lalikulu ngati mbewa ya pakompyuta.Zikatero, m'kati mwake mungafunike kukhala opanda pake kapena mwina mauna ena.Izi ndizabwino pamapulogalamu ambiri, ngakhale kupepuka ndiye cholinga.Koma ngati nyonga yakuthupi ikufunika monga bawuti kapena mbali ina yamphamvu kwambiri, ndiye kuti [jekeseni wa ufa wachitsulo] kapena MIM kaŵirikaŵiri sizoyenera.”
Chithunzi chosindikizidwa chatsopano chikuwonetsa zovuta zamkati zomwe chosindikizira cha Rapidia chimatha kupanga.
Gelbart akuwonetsa zina zambiri za chosindikizira.Makatiriji okhala ndi phala lachitsulo amatha kuwonjezeredwa ndipo ogwiritsa ntchito omwe amawabwezera ku Rapidia kuti awonjezeredwenso adzalandira mfundo zazinthu zilizonse zosagwiritsidwa ntchito.
Zida zosiyanasiyana zilipo, kuphatikizapo 316 ndi 17-4PH zitsulo zosapanga dzimbiri, INCONEL 625, ceramic ndi zirconia, komanso mkuwa, tungsten carbide ndi zipangizo zina zingapo zomwe zikukula.Zida zothandizira - chinsinsi chachinsinsi cha osindikizira ambiri azitsulo - amapangidwa kuti asindikize magawo omwe amatha kuchotsedwa kapena "kusungunuka" ndi manja, kutsegula chitseko chamkati chosabalalika.
Rapidia wakhala akuchita bizinesi kwa zaka zinayi ndipo, zowona, akungoyamba kumene."Kampani ikutenga nthawi kukonza zinthu," adatero Gelbart.
Mpaka pano, iye ndi gulu lake atumiza machitidwe asanu, kuphatikizapo imodzi ku Selkirk Technology Access Center (STAC) ku British Columbia.Wofufuza Jason Taylor wakhala akugwiritsa ntchito makinawa kuyambira kumapeto kwa Januware ndipo wawona zabwino zambiri kuposa osindikiza angapo a STAC 3D.
Ananenanso kuti kutha "kumata ndi madzi" yaiwisi yaiwisi musanayambe sintering ali ndi kuthekera kwakukulu.Amadziwikanso ndi nkhani zokhudzana ndi kuchepetsa mafuta, kuphatikizapo kugwiritsa ntchito ndi kutaya mankhwala.Ngakhale kuti mapangano osaulula amalepheretsa Taylor kugawana zambiri za ntchito yake kumeneko, ntchito yake yoyamba yoyeserera ndi yomwe ambiri aife tingaganize: ndodo yosindikizidwa ya 3D.
“Zinali zangwiro,” iye anatero akumwetulira."Tidamaliza nkhope, kubowola tsinde, ndipo ndikugwiritsa ntchito pano.Ndife ochita chidwi ndi momwe ntchito yatsopanoyi yagwiritsidwira ntchito.Mofanana ndi ziwalo zonse zowonongeka, pali kuchepa pang'ono komanso kusalongosoka pang'ono, koma makinawo ndi okwanira.Nthawi zonse, tikhoza kubwezera mavutowa pakupanga.
The Additive Report ikuyang'ana pa kugwiritsa ntchito matekinoloje opangira zowonjezera pakupanga kwenikweni.Opanga masiku ano akugwiritsa ntchito kusindikiza kwa 3D kupanga zida ndi zosintha, ndipo ena akugwiritsa ntchito AM popanga mawu okwera.Nkhani zawo ziziwonetsedwa pano.


Nthawi yotumiza: Aug-23-2022
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