(1) I-viscosity ephansi.Ukuphulukiswa kwe-UV kusekelwe kumodeli ye-CAD, futhi inhlaka ine-laminate layer by layer ukuze yakhe izingxenye.Ngemva kokuba ungqimba lokuqala seluqediwe, kuba nzima nge-resin ewuketshezi ukumboza ngokuzenzakalelayo ubuso be-resin eqinile ephulukisiwe, ngoba ukungezwani okungaphezulu kwe-resin kukhulu kunokwe-resin eqinile.Izinga le-resin kufanele likhishwe futhi liboshwe kanye nge-automatic scraper, futhi isendlalelo esilandelayo singacutshungulwa ngemva kokuba izinga lilinganisiwe.Lokhu kudinga ukuthi i-resin ibe ne-viscosity ephansi ukuze kuqinisekiswe izinga layo elihle kanye nokusebenza kalula.Njengamanje, i-viscosity ye-resin ngokuvamile iyadingeka ukuba ibe ngaphansi kuka-600 CP · s (30 ℃).
(2) Ukuncipha kokwelapha kuncane.Ibanga eliphakathi kwama-molecule e-resin ewuketshezi yibanga lamandla e-van der Waals, acishe abe ngu-0.3~0.5 nm.Ngemuva kokuphulukisa, ama-molecule awela i-crosslink, kanye nebanga le-intermolecular ukwakha isakhiwo senethiwekhi liguqulwa libe ibanga le-covalent bond, cishe ku-0.154 nm.Ngokusobala, ibanga phakathi kwama-molecule liyancipha ngaphambi nangemva kokwelashwa.Ibanga eliphakathi kwamamolekyuli lokusabela kwe-polymerization yokwengeza lizokwehliswa ngo-0.125~0.325 nm.Enqubweni yokushintsha kwamakhemikhali, i-C=C iba yi-CC, ubude bebhondi bukhuphuka kancane, kodwa umnikelo ekushintsheni kwebanga lokusebenzisana kwama-intermolecular mncane kakhulu.Ngakho-ke, ukuncipha kwevolumu ngemuva kokwelashwa akunakugwenywa.Ngesikhathi esifanayo, ngaphambi nangemva kokuphulukiswa, ukuphazamiseka kuba nokuhleleka, futhi nokuncipha kwevolumu kwenzeka.Lokhu akulungile kakhulu kumodeli wokubumba we-shrinkage, okuzokhiqiza ukucindezeleka kwangaphakathi futhi kuholele kalula ekuguqulweni, i-warpage kanye nokuqhekeka kwezingxenye zemodeli., Futhi kuthinte kakhulu ukunemba kwezingxenye.Ngakho-ke, ukuthuthukiswa kwe-resin ephansi ye-shrinkage kuyinkinga enkulu ebhekene ne-SLA resin okwamanje.
(3) Ijubane lokwelapha liyashesha.Ngokuvamile, ukushuba kongqimba ngalunye kungu-0.1~0.2 mm, okungaqiniswa ungqimba ngongqimba ngesikhathi sokubunjwa.Kuthatha amakhulu kuya ezinkulungwaneni zezendlalelo ukuze kuqiniswe ingxenye eqediwe.Ngakho-ke, uma okuqinile kuzokwenziwa ngesikhathi esifushane, izinga lokuphulukisa libaluleke kakhulu.Isikhathi sokuchayeka se-laser beam ukuya endaweni sisebangeni lama-microseconds ukuya kuma-millisecond, acishe alingane nempilo yesimo senjabulo se-photoinitiator esetshenzisiwe.Izinga lokuphulukisa eliphansi alithinti kuphela umphumela wokuphulukisa, kodwa futhi lithinta ngokuqondile ukusebenza kahle komshini wokubumba, ngakho-ke kunzima ukufaka isicelo ekukhiqizeni ezentengiselwano.
(4) Ukunwetshwa okuphansi.Enqubweni yokwakhiwa kwesikhunta, i-resin ewuketshezi ihlale imboza ingxenye ephulukisiwe ye-workpiece futhi ingangena engxenyeni eselashiwe, yenze i-resin ephulukisiwe ikhule, okuholela ekwandeni kosayizi wengxenye.Ukunemba kwemodeli kungaqinisekiswa kuphela uma ukuvuvukala kwe-resin kuncane.
(5) Ukuzwela okuphezulu.Ngenxa yokuthi i-SLA isebenzisa ukukhanya kwe-monochromatic, ubude begagasi be-photosensitive resin ne-laser kufanele bufane, okungukuthi, ubude beza beza be-laser kufanele busondele ngangokunokwenzeka kubude obuphezulu bokumuncwa be-resin e-photosensitive.Ngasikhathi sinye, ububanzi be-wavelength bokumuncwa kwe-photosensitive resin kufanele bube buncane, obungaqinisekisa ukuthi ukuphulukiswa kwenzeka kuphela endaweni ye-laser irradiation, ngaleyo ndlela kuthuthukiswe ukunemba kokukhiqiza kwezingxenye.
(6) Izinga eliphezulu lokuphulukisa.Inganciphisa ukuncipha kwemodeli yokubumba ngemuva kokuphulukisa, ngaleyo ndlela inciphise ukuwohloka kwangemva kokuphulukisa.
(7) Amandla aphezulu amanzi.Amandla aphezulu okumanzi angaqinisekisa ukuthi inqubo yokuphulukisa ngemva kokuphulukisa ngeke ikhiqize ukuguquguquka, ukunwetshwa kanye nokuxebuka kwe-interlayer.
Isikhathi sokuthumela: Mar-28-2023