Sisebenzisa amakhukhi ukuthuthukisa ulwazi lwakho.Ngokuqhubeka nokuphequlula le webhusayithi, uyavumelana nokusebenzisa kwethu amakhukhi.Ulwazi olwengeziwe.
I-athikili evela kumagazini we-Polymer Testing icwaninga futhi iqhathanise ikhwalithi yezinto ezimbalwa eziyinhlanganisela ye-polymer ekhiqizwa kusetshenziswa ubuchwepheshe bokuphrinta be-3D, njenge-morphology nokuthungwa kwendawo, izakhiwo zemishini, nezakhiwo ezishisayo.
Ucwaningo: Imikhiqizo yepulasitiki efakwe yizinhlayiyana ze-Nano eyenziwe amaphrinta e-3D eqondiswa ukufunda komshini.Umthombo wesithombe: Pixel B/Shutterstock.com
Izingxenye ze-polymer ezikhiqiziwe zidinga izimfanelo ezahlukahlukene ngokwenhloso yazo, ezinye zazo ezinganikezwa kusetshenziswa imicu ye-polymer eyakhiwe amanani ahlukene ezinto eziningi.
Igatsha lokukhiqiza okungeziwe (AM), elibizwa nge-3D printing, ubuchwepheshe obusezingeni eliphezulu obuxuba izinto zokwakha imikhiqizo ngokusekelwe kudatha yemodeli ye-3D.
Ngakho-ke, imfucuza ekhiqizwa yile nqubo incane kakhulu.Ubuchwepheshe bokuphrinta be-3D okwamanje busetshenziswa ezinhlelweni ezihlukahlukene, okuhlanganisa ukukhiqizwa okukhulu kwezinto ezihlukahlukene, futhi inani lokusetshenziswa lizokhula kuphela.
Lobu buchwepheshe manje sebungasetshenziselwa ukwakha izinto ezinezakhiwo eziyinkimbinkimbi, izinto ezingasindi, nemiklamo engenziwa ngokwezifiso.Ngaphezu kwalokho, ukuphrinta kwe-3D kunezinzuzo zokusebenza kahle, ukusimama, ukuguquguquka kanye nokunciphisa ubungozi.
Esinye sezici ezibaluleke kakhulu zalobu buchwepheshe kuhilela ukukhetha amapharamitha alungile ngoba anethonya elikhulu kumkhiqizo, njengokuma kwawo, usayizi, izinga lokupholisa, kanye ne-thermal gradient.Lezi zimfanelo zibe sezithinta ukuvela kwe-microstructure, izici zayo kanye namaphutha.
Ukufunda ngomshini kungasetshenziswa ukusungula ubudlelwano phakathi kwezimo zenqubo, i-microstructure, ukwakheka kwengxenye, ukwakheka, amaphutha, kanye nekhwalithi yomshini womkhiqizo othile ophrintiwe.Lokhu kuxhumana kungasiza ukunciphisa inani lezilingo ezidingekayo ukuze kukhiqizwe okukhiphayo kwekhwalithi ephezulu.
I-polyethylene (HDPE) ne-polylactic acid (PLA) ama-polymer amabili asetshenziswa kakhulu e-AM.I-PLA isetshenziswa njengezinto eziyinhloko ezisetshenziswayo eziningi ngoba iyasimama, iyonga, iyabola futhi inezakhiwo ezinhle kakhulu.
Ukugaywa kabusha kwepulasitiki kuyinkinga enkulu ebhekene nezwe;ngakho-ke, kungaba yinzuzo kakhulu ukufaka ipulasitiki egaywa kabusha enqubweni yokuphrinta ye-3D.
Njengoba impahla yokuphrinta ifakwa ngokuqhubekayo ku-liquefier, izinga lokushisa liyagcinwa lisezingeni elifanayo ngesikhathi sokufakwa kwe-fused filament (FFF) (uhlobo lokuphrinta kwe-3D).
Ngakho-ke, i-polymer encibilikisiwe ikhishwa nge-nozzle ngokunciphisa ingcindezi.I-Surface morphology, isivuno, ukunemba kwejometri, izakhiwo zemishini, kanye nezindleko konke kuthintwa ukuguquguquka kwe-FFF.
Ukuqina, umthelela ocindezelayo noma amandla okugoba kanye nesiqondisindlela sokuphrinta kuthathwa njengokuguquguquka okubaluleke kakhulu kwenqubo ethinta amasampula e-FFF.Kulolu cwaningo, indlela ye-FFF yasetshenziswa ukulungisa izifanekiso;kwasetshenziswa imicu eyisithupha ukuze kwakhiwe ungqimba lwesampula.
a: Imodeli yokuthuthukisa ipharamitha yokubikezela ye-ML yamaphrinta e-3D kumasampuli 1 no-2, b: Imodeli yokuthuthukisa ipharamitha yokubikezela ye-ML yamaphrinta e-3D kusampula 3, c: amamodeli okuthuthukisa ipharamitha yokubikezela ye-ML yamaphrinta e-3D kumasampuli 4 no-5. Umthombo wesithombe: Hossain , MI, njll.
Ubuchwepheshe bokuphrinta be-3D bungahlanganisa ikhwalithi enhle kakhulu yamaphrojekthi wokuphrinta angenakufinyelelwa ngezindlela zokukhiqiza zendabuko.Ngenxa yendlela yokukhiqiza eyingqayizivele yokuphrinta kwe-3D, ikhwalithi yezingxenye ezikhiqiziwe ithinteka kakhulu ngokuhlukahluka komklamo kanye nenqubo.
Ukufunda ngomshini (ML) kusetshenziswe ngezindlela eziningi ekukhiqizeni okungeziwe ukuze kuthuthukiswe yonke inqubo yentuthuko neyokukhiqiza.Indlela yokuklama esekwe kudatha ethuthukile ye-FFF kanye nohlaka lokuthuthukisa ukwakheka kwengxenye ye-FFF sekwenziwe.
Abacwaningi balinganisele izinga lokushisa lombhobho ngosizo lweziphakamiso zokufunda komshini.Ubuchwepheshe be-ML busetshenziselwa ukubala izinga lokushisa lombhede wokuphrinta kanye nesivinini sokuphrinta;usayizi ofanayo usethelwe wonke amasampuli.
Imiphumela ibonisa ukuthi ubumanzi bezinto ezibonakalayo buthinta ngokuqondile ikhwalithi yokuphuma kokuphrinta kwe-3D.Izinga lokushisa le-nozzle elifanele kuphela elingaqinisekisa uketshezi oludingekayo lwento.
Kulo msebenzi, i-PLA, i-HDPE nezinto zokwenziwa kabusha ze-filament zixutshwa nama-nanoparticles we-TiO2 futhi zisetshenziselwa ukukhiqiza izinto ezishibhile ze-3D eziphrintiwe ngokukhiqiza imicu encibilikisiwe yokukhiqiza amaphrinta e-3D nama-extruder we-filament.
Imicu yesici iyinoveli futhi isebenzisa i-graphene ukuze ikhiqize i-coating engangeni manzi, enganciphisa noma yiziphi izinguquko ezicini eziyisisekelo zemishini yomkhiqizo oqediwe.Ingaphandle lengxenye ephrintiwe ye-3D nayo ingacutshungulwa.
Umgomo oyinhloko walo msebenzi ukuthola indlela yokufinyelela ikhwalithi enokwethenjelwa futhi ecebile yemishini nengokwenyama ezintweni eziphrintiwe ze-3D uma kuqhathaniswa nezinto eziphrintiwe ze-3D zendabuko ezivame ukukhiqizwa.Imiphumela kanye nokusetshenziswa kwalolu cwaningo kungavula indlela yokuthuthukiswa kwezinhlelo eziningi ezihlobene nomkhakha.
Qhubeka ufunda: Imaphi ama-nanoparticles angcono kakhulu ekwenzeni okungeziwe kanye nezinhlelo zokusebenza zokuphrinta ze-3D?
I-Hossain, MI, Chowdhury, MA, Zahid, MS, Sakib-Uz-Zaman, C., Rahaman, ML, & Kowser, MA (2022) Ukuthuthukiswa nokuhlaziywa kwemikhiqizo yepulasitiki efakwe i-nanoparticle eyenziwe amaphrinta e-3D aqondiswa ukufunda komshini .Ukuhlolwa kwe-Polymer, 106. Kutholakala ku-URL elandelayo: https://www.sciencedirect.com/science/article/pii/S014294182100372X?via%3Dihub
Ukuzihlangula: Imibono evezwe lapha yileyo evezwe umbhali ngokomuntu siqu, futhi ayimeleli imibono yomnikazi nomsebenzi wale webhusayithi, i-AZoM.com Limited T/A AZoNetwork.Lo mshwana wokuzihlangula uyingxenye yemigomo nemibandela yokusebenzisa le webhusayithi.
Umjuluko oshisayo, Shahir.(Disemba 5, 2021).Ukufunda ngomshini kuthuthukisa imikhiqizo ephrintiwe ye-3D egaya kabusha ipulasitiki.AZoNano.Ibuyiswe kusukela ku-https://www.azonano.com/news.aspx?newsID=38306 ngo-December 6, 2021.
Umjuluko oshisayo, Shahir."Ukufunda ngomshini kuthuthukisa imikhiqizo ephrintiwe ye-3D evela kumapulasitiki agaywe kabusha."AZoNano.Disemba 6, 2021..
Umjuluko oshisayo, Shahir."Ukufunda ngomshini kuthuthukisa imikhiqizo ephrintiwe ye-3D evela kumapulasitiki agaywe kabusha."AZoNano.https://www.azonano.com/news.aspx?newsID=38306.(Kufinyelelwe ngoDisemba 6, 2021).
Umjuluko oshisayo, Shahir.2021. Ukufunda ngomshini kuthuthukisa imikhiqizo ephrintiwe ye-3D evela kumapulasitiki agaywe kabusha.I-AZoNano, ibukwe ngoDisemba 6, 2021, https://www.azonano.com/news.aspx?newsID=38306.
I-AZoNano ikhulume noDkt. Jinian Yang ngokubamba iqhaza kwakhe ocwaningweni ngezinzuzo zama-nanoparticles afana nembali ekusebenzeni kwama-epoxy resins.
Sixoxisane noDkt. John Miao ukuthi lolu cwaningo luguqule ukuqonda kwethu ngezinto ezi-amorphous nokuthi zisho ukuthini ngomhlaba obonakalayo osizungezile.
Sixoxisane nge-NANO-LLPO noDkt. Dominik Rejman, ukubopha amanxeba okusekelwe kuma-nanomaterials akhuthaza ukuphulukiswa futhi avimbele ukutheleleka.
Isistimu yokulinganisa iphrofayili ye-stylus ye-P-17 inikeza ukuphindaphinda okuhle kakhulu kokulinganisa okungaguquki kwe-2D ne-3D topography.
Uchungechunge lwe-Profilm3D luhlinzeka ngamaphrofayili abonakalayo athengekayo angakwazi ukukhiqiza amaphrofayili angaphezulu kwekhwalithi ephezulu kanye nezithombe ezinemibala yeqiniso ngokujula okungenamkhawulo kwenkambu.
I-Raith's EBPG Plus iwumkhiqizo wokugcina we-high-resolution electron beam lithography.I-EBPG Plus iyashesha, ithembekile futhi iyadlula, ilungele zonke izidingo zakho ze-lithography.
Isikhathi sokuthumela: Dec-07-2021