Isingeniso:
Izinkambu zokukhiqiza okungeziwe kanye ne-prototyping esheshayo ibone izinguquko ezinkulu ngenxa yokwakhiwa kwesisekeloUbuchwepheshe bokuphrinta be-3Dwaziwa ngoi-stereolithography (SLA). U-Chuck Hull udale i-SLA, uhlobo lwakuqala lokuphrinta kwe-3D, ngeminyaka yawo-1980. Thina,FCE, izokukhombisa yonke imininingwane mayelana nenqubo kanye nokusetshenziswa kwe-stereolithography kulesi sihloko.
Izimiso ze-Stereolithography:
Ngokuyisisekelo, i-stereolithography iyinqubo yokwakha izinto ezinezinhlangothi ezintathu ukusuka kumamodeli edijithali isendlalelo ngesendlalelo. Ngokuphambene nezindlela ezivamile zokukhiqiza (ezinjalo zokugaya noma ukubaza), ezengeza impahla isendlalelo esisodwa ngesikhathi, ukuphrinta kwe-3D—okuhlanganisa i-stereolithography—kwengeza ungqimba lwempahla ngongqimba.
Imiqondo emithathu eyinhloko ku-stereolithography ilawulwa ukunqwabelanisa, ukuphulukiswa kwe-resin, kanye ne-photopolymerization.
I-Photopolymerization:
Inqubo yokusebenzisa ukukhanya kunhlaka ye-liquid ukuyiguqula ibe i-polymer eqinile ibizwa nge-photopolymerization.
Ama-photopolymerizable monomers kanye nama-oligomers akhona ku-resin esetshenziswa ku-stereolithography, futhi enza ipholimesi lapho evezwe kumaza okukhanya athile.
Ukwelashwa kwe-resin:
I-vat ye-liquid resin isetshenziswa njengendawo yokuqala yokuphrinta kwe-3D. Isiteji esingaphansi kwe-vat sicwiliswa ku-resin.
Ngokusekelwe kumodeli yedijithali, i-UV laser beam ngokukhethayo iqinisa ungqimba lwe-resin ewuketshezi ngokwesendlalelo njengoba iskena indawo yayo.
Inqubo yokwenza i-polymerization iqalwa ngokudalula ngokucophelela inhlaka ekukhanyeni kwe-UV, okuqinisa uketshezi lube ulwelwesi.
Isendlalelo esilawulwayo:
Ngemuva kokuthi ungqimba ngalunye luqina, inkundla yokwakha iyaphakanyiswa kancane kancane ukuze iveze futhi yelaphe ungqimba olulandelayo lwe-resin.
Isendlalelo ngesendlalelo, le nqubo yenziwa kuze kube yilapho kukhiqizwa into ephelele ye-3D.
Ukulungiselela Imodeli Yedijithali:
Kusetshenziswa isofthiwe ye-computer-aid design (CAD), imodeli ye-3D yedijithali iyakhiwa noma itholwe ukuze kuqalwe inqubo yokuphrinta ye-3D.
Ukusika:
Ungqimba ngalunye oluncane lwemodeli yedijithali lumelela ingxenye ephambene yento eqediwe. Iphrinta ye-3D iyalelwe ukuthi iphrinte lezi zingcezu.
Ukuphrinta:
Iphrinta ye-3D esebenzisa i-stereolithography ithola imodeli esikiwe.
Ngemva kokucwiliswa kweplathifomu yokwakha kunhlaka ewuketshezi, inhlaka yelashwa ngokwendlela isendlalelo kusetshenziswa i-laser ye-UV ngokuvumelana neziqondiso ezisikiwe.
Ngemuva kokucubungula:
Ngemuva kokuthi into iphrintiwe ngezilinganiso ezintathu, ikhishwa ngokucophelela ku-resin liquid.
Ukuhlanza inhlaka eyeqile, ukuqhubekela phambili nokwelapha into, futhi, ezimweni ezithile, ukugcotshwa kwesihlabathi noma ukupholishwa ukuze kuqedwe bushelelezi zonke ziyizibonelo zokuyicubungula.
Izicelo ze-Stereolithography:
I-Stereolithography ithola izinhlelo zokusebenza ezimbonini ezahlukahlukene, kufaka phakathi:
· I-Prototyping: I-SLA isetshenziswa kabanzi ukwenza i-prototyping ngokushesha ngenxa yekhono layo lokukhiqiza amamodeli anemininingwane eminingi nanembile.
· Ukuthuthukiswa Komkhiqizo: Kusetshenziswa ekuthuthukisweni komkhiqizo ukuze kwakheke ama-prototypes okuqinisekiswa komklamo nokuhlolwa.
· Amamodeli Ezokwelapha: Emkhakheni wezokwelapha, i-stereolithography isetshenziselwa ukwakha amamodeli e-anatomical ayinkimbinkimbi yokuhlela nokufundisa ukuhlinzwa.
· Ukukhiqiza Ngokwezifiso: Ubuchwepheshe busetshenziswa ukuze kukhiqizwe izingxenye ezingokwezifiso kanye nezingxenye zezimboni ezihlukahlukene.
Isiphetho:
Ubuchwepheshe besimanje bokuphrinta be-3D, obunikeza ukunemba, isivinini, kanye nokuguquguquka ekukhiqizeni izinto eziyinkimbinkimbi ezinezinhlangothi ezintathu, zenziwe zaba nokwenzeka nge-stereolithography. I-Stereolithography iseyingxenye ebalulekile yokukhiqiza okungeziwe, isiza ukusungula izimboni eziningi ezahlukahlukene njengoba ubuchwepheshe buthuthuka.
Isikhathi sokuthumela: Nov-15-2023