Nakuba umsebenzi omningi wokukhiqiza wenziwa ngaphakathi kwephrinta ye-3D njengoba izingxenye zakhiwe isendlalelo ngesendlalelo, lokho akukona ukuphela kwenqubo. Ukucubungula kwangemuva kuyisinyathelo esibalulekile ekuhambeni komsebenzi wokuphrinta kwe-3D okushintsha izingxenye eziphrintiwe zibe imikhiqizo eqediwe. Okusho ukuthi, "ukucubungula ngemuva" ngokwayo akuyona inqubo ethile, kodwa kunalokho isigaba esihlanganisa amasu amaningi okucubungula ahlukene angasetshenziswa futhi ahlanganiswe ukuze ahlangabezane nezidingo ezahlukene zobuhle nokusebenza.
Njengoba sizobona ngokuningiliziwe kulesi sihloko, kunezindlela eziningi zokucubungula emva kokucubungula kanye nokuqeda phezulu, okuhlanganisa ukucutshungulwa okuyisisekelo (njengokususwa kokusekelwa), ukubushelela kwendawo (ngokomzimba namakhemikhali), nokucubungula umbala. Ukuqonda izinqubo ezahlukene ongazisebenzisa ekuphrinteni kwe-3D kuzokuvumela ukuthi uhlangabezane nezicaciso zomkhiqizo nezimfuneko, noma ngabe umgomo wakho uwukuthola ikhwalithi yendawo efanayo, ubuhle obuthile, noma ukukhiqiza okwandayo. Ake sibhekisise.
Ukucubungula kwangemuva okuyisisekelo ngokuvamile kubhekisela ezinyathelweni zokuqala ngemva kokukhipha nokuhlanza ingxenye ephrintiwe ye-3D egobolondweni lomhlangano, okuhlanganisa ukususwa kokusekelwa kanye nokushelela kwendawo okuyisisekelo (ukulungiselela amasu okushelela ngokucophelela).
Izinqubo eziningi zokuphrinta ze-3D, okuhlanganisa i-fused deposition modeling (FDM), i-stereolithography (SLA), i-direct metal laser sintering (DMLS), kanye ne-carbon digital light synthesis (DLS), zidinga ukusetshenziswa kwezinhlaka zokusekela ukudala ama-protrusions, amabhuloho, nezakhiwo ezintekenteke. . . okukhethekile. Nakuba lezi zakhiwo ziwusizo ohlelweni lokunyathelisa, kufanele zisuswe ngaphambi kokuba kusetshenziswe amasu okuqeda.
Ukukhipha ukwesekwa kungenziwa ngezindlela eziningana ezahlukene, kodwa inqubo evamile namuhla ihilela umsebenzi wezandla, njengokusika, ukususa ukusekelwa. Uma usebenzisa ama-substrates ancibilikayo emanzini, isakhiwo sokusekela singasuswa ngokucwilisa into ephrintiwe emanzini. Kukhona nezixazululo ezikhethekile zokususwa kwengxenye okuzenzakalelayo, ikakhulukazi ukukhiqizwa kwezithako zensimbi, okusebenzisa amathuluzi afana nemishini ye-CNC namarobhothi ukusika ngokunembile izisekelo nokugcina ukubekezelelana.
Enye indlela eyisisekelo yokucubungula i-sandblasting. Inqubo ihilela ukufafaza izingxenye eziphrintiwe ngezinhlayiya ngaphansi kwengcindezi ephezulu. Umthelela wezinto zokufutha endaweni yokuphrinta udala ukuthungwa okubushelelezi, okufanayo.
I-Sandblasting ngokuvamile iyisinyathelo sokuqala sokushelela indawo ephrintiwe ye-3D njengoba isusa kahle izinto ezisele futhi idale indawo efanayo esuke isilungele izinyathelo ezilandelayo njengokupholisha, ukupenda noma ukungcolisa. Kubalulekile ukuqaphela ukuthi i-sandblasting ayikhiqizi isiphetho esicwebezelayo noma esicwebezelayo.
Ngalé kwesisekelo se-sandblasting, akhona amanye amasu okucubungula ngemva kokucubungula angasetshenziswa ukuze kuthuthukiswe ubushelelezi nezinye izici ezingaphezulu zezingxenye eziphrintiwe, njengokubukeka kwe-matte noma okucwebezelayo. Kwezinye izimo, amasu okuqeda angasetshenziswa ukuze kuzuzwe bushelelezi lapho usebenzisa izinto zokwakha ezahlukene kanye nezinqubo zokunyathelisa. Nokho, kwezinye izimo, ukushelela kwendawo kulungele kuphela izinhlobo ezithile zemidiya noma amaphrinti. Ingxenye yejiyomethri nezinto zokuphrinta ziyizici ezimbili ezibaluleke kakhulu lapho ukhetha enye yezindlela ezilandelayo zokushelela kwendawo (zonke zitholakala ku-Xometry Instant Pricing).
Le ndlela yokucubungula i-post-processing ifana ne-sandblasting yemidiya evamile ngoba ihlanganisa ukusebenzisa izinhlayiya ekuphrintiwe ngaphansi kwengcindezi ephezulu. Nokho, kunomehluko obalulekile: i-sandblasting ayisebenzisi noma yiziphi izinhlayiya (ezifana nesihlabathi), kodwa isebenzisa ubuhlalu bengilazi eyindilinga njengendawo ephakathi ukuze iqhume isihlabathi ukuphrinta ngesivinini esikhulu.
Umthelela wobuhlalu bengilazi obuyindilinga ebusweni bokuphrinta udala umphumela wangaphezulu oshelelayo futhi ofanayo. Ngaphezu kwezinzuzo zobuhle ze-sandblasting, inqubo yokushelela yandisa amandla emishini yengxenye ngaphandle kokuthinta usayizi wayo. Lokhu kungenxa yokuthi ukwakheka okuyindilinga kobuhlalu bengilazi kungaba nomthelela ongaphezulu kakhulu endaweni.
I-Tumbling, eyaziwa nangokuthi i-screening, iyisixazululo esisebenzayo sezingxenye ezincane zangemuva kokucubungula. Ubuchwepheshe bubandakanya ukubeka ukuphrinta kwe-3D esigubhu kanye nezingcezu ezincane ze-ceramic, ipulasitiki noma insimbi. Isigubhu sibe sesiphenduka noma siyandindizela, okubangela ukuthi udoti uhlikihle engxenyeni ephrintiwe, isuse noma yikuphi ukungahambi kahle kwendawo futhi idale indawo ebushelelezi.
Ukuwa kwemidiya kunamandla kakhulu kunokuqhunyiswa kwesihlabathi, futhi ukushelela kwendawo kungalungiswa kuye ngohlobo lwezinto eziwayo. Isibonelo, ungasebenzisa imidiya yezinhlamvu eziphansi ukuze udale ukuthungwa kwendawo engaphezulu, kuyilapho ukusebenzisa ama-chips anegrit ephezulu kungakhiqiza indawo ebushelelezi. Ezinye zezinhlelo ezinkulu zokuqedela ezivame kakhulu zingaphatha izingxenye ezikala 400 x 120 x 120 mm noma 200 x 200 x 200 mm. Kwezinye izimo, ikakhulukazi ngezingxenye ze-MJF noma ze-SLS, umhlangano ungawa upholishwe ngesithwali.
Nakuba zonke lezi zindlela zokushelela ezingenhla zisekelwe ezinqubweni zomzimba, ukushelela kwesitimu kuncike ekuphenduleni kwamakhemikhali phakathi kwezinto eziphrintiwe nesitimu ukuze kukhiqizwe indawo ebushelelezi. Ngokucacile, ukushelela kwesitimu kuhilela ukudalula ukuphrinta kwe-3D ku-solvent ehwamukayo (efana ne-FA 326) egumbini lokucubungula elivaliwe. Isitimu sinamathela ngaphezu kokuphrintiwe futhi sidale ukuncibilika kwamakhemikhali okulawulwayo, kusheleleke noma yikuphi ukungapheleli kwendawo, amagquma nezigodi ngokusabalalisa kabusha izinto ezincibilikisiwe.
Ukushelela nge-steam nakho kwaziwa ngokunikeza indawo engaphezulu isiphetho esicwebezelayo nesicwebezelayo. Imvamisa, inqubo yokushelela isitimu ibiza kakhulu kunokushelela ngokomzimba, kodwa ikhethwa ngenxa yobushelelezi bayo obuphakeme kanye nesiphetho esicwebezelayo. I-Vapor Smoothing iyahambisana nama-polymers amaningi kanye nezinto zokuphrinta ze-3D elastomeric.
Ukufaka imibala njengesinyathelo esengeziwe sangemva kokucubungula kuyindlela enhle yokuthuthukisa ubuhle bomkhiqizo wakho ophrintiwe. Nakuba izinto zokuphrinta ze-3D (ikakhulukazi i-FDM filaments) ziza ngezinketho zombala ezihlukahlukene, i-toning njengenqubo yangemuva ikuvumela ukuthi usebenzise izinto zokwakha nezinqubo zokunyathelisa ezihlangabezana nokucaciswa komkhiqizo futhi uzuze ukufana kombala okulungile kwento ethile. umkhiqizo. Nazi izindlela ezimbili ezivame kakhulu zokufaka imibala zokuphrinta kwe-3D.
Ukupenda kokufutha kuyindlela edumile ehlanganisa ukusebenzisa isifutho se-aerosol ukuze usebenzise ungqimba lukapende ekuphrintiwe kwe-3D. Ngokumisa ukuphrinta kwe-3D, ungafafaza upende ngokulinganayo phezu kwengxenye, umboze yonke indawo yayo. (Upende ungasetshenziswa futhi ngokukhetha usebenzisa amasu okufihla.) Le ndlela ivamile kuzo zombili izingxenye eziphrintiwe nemishini ye-3D futhi ayibizi kakhulu. Kodwa-ke, ine-drawback eyodwa enkulu: njengoba uyinki isetshenziswa kancane kakhulu, uma ingxenye ephrintiwe iklwejwa noma igugile, umbala wokuqala wento ephrintiwe uzobonakala. Inqubo elandelayo yokufiphaza ixazulula le nkinga.
Ngokungafani nomdwebo wesifutho noma ukuxubha, uyinki ekuphrinteni kwe-3D ungena ngaphansi. Lokhu kunezinzuzo eziningana. Okokuqala, uma ukuphrinta kwe-3D kuguga noma kuklwejwa, imibala yakhona egqamile izohlala injalo. Ibala nalo alisuki, okuyinto eyaziwa ngopende. Enye inzuzo enkulu yokudaya ukuthi akuthinti ukunemba kwe-dimensional kokuphrinta: njengoba udayi ungena ebusweni bemodeli, awufaki ukushuba futhi ngakho-ke awubangeli ukulahlekelwa imininingwane. Inqubo ethize yokubala incike kunqubo yokuphrinta ye-3D nezinto zokwakha.
Zonke lezi zinqubo zokuqeda ziyenzeka uma usebenza nozakwethu wokukhiqiza ofana ne-Xometry, okukuvumela ukuthi udale amaphrinti e-3D ochwepheshe ahlangabezana kokubili namazinga okusebenza nobuhle.
Isikhathi sokuthumela: Apr-24-2024