Li-printer tsa Filament 3D li ntle haholo, empa hangata li na le boholo bo fokolang.Bahatisi ba laser sintering ba fana ka libethe tse kholo tsa khatiso, empa ba boetse ba na le theko ea $250,000. mochini o sehang mochining oa hau oa khatiso oa SLS 3D.
Re tsebisitse OpenSLS makhetlo a mangata pele, empa ho bonahala eka qetellong e fetohile tharollo e feletseng (le e ka sebelisoang). Haufinyane tjena e hatisitse sehlooho sa lipatlisiso mabapi le mohloli o bulehileng oa laser sintering (OpenSLS0 ea nylon le biocompatible polycaprolactone (PDF)), e leng lintlha tse qaqileng. moaho le sebopeho.
Sehlopha se thehile hardware e ka fetolang laser cutter ka boholo ba bethe ea 60 cm x 90 cm hore e be mochine oa khatiso oa SLS.botle?Bongata ba hardware ke laser cut, e bolelang hore u se u ka fetola laser cutter ho printa ea 3D.
Lifaele tsa moralo li ka fumanoa ho GitHub ea bona.The hardware e ka u bitsa chelete e ka bang $2,000, e leng matokomane ha a bapisoa le mochine oa khatiso oa laser sintered.Ho na le boitsebiso bo bongata lihloohong tsa bona-re ke ke ra koahela boitsebiso bo bongata sehloohong se le seng. Haeba u qetella u e hahile, ka kopo re tsebise!
Ke tlameha ho tobetsa e 'ngoe ea lihokelo ho utloisisa hore na ba bua ka eng.Ke botsa, SLS ke eng pele?Lol “Selective Laser Sintering (SLS) is an additive manufacturing process that use laser to fuse powdered raw materials. hore e be sebopeho se tiileng sa 3D."
Ke batla ho tseba hore na ho ka khoneha ho sebelisa lisebelisoa tsa tšepe tse tlaase.
Leha ho le joalo, tšepe ka kakaretso e bonahatsa 'me e sebetsa ka mocheso ho feta polasetiki, kahoo le hoja ke lebeletse hore e sebetse, ho ka' na ha e-ba bonolo ho sebelisa mocheso ka ho toba, joalo ka roboto ea 3D welding e tlalehiloeng ke hackaday selemong se fetileng http://hackaday.com/ 2015/06/13/6-axis-robot-arm-3d-prints-a-metal-bridge/
Hantle, likarolo tse ling tsa indasteri li sebelisa laser sintering ka tsela ena, kahoo e ka etsoa.The reflection index of many powdered metals is in the same range as the reflection index of powdered plastics.Ho phaella moo, ho na le metsoako e mengata ea zinki e nang le MP e utloahalang eo e lokela ho ba ka har'a mefuta e mengata ea mechine ea ho itšeha ka laser.Potso ea sebele ke hore, ke nahana, hore na li-alloys tsena li na le lisebelisoa tse molemo tsa tlhahiso.
Karolo e ka pele ea lisebelisoa tsa indasteri hangata e na le li-optics tsa polarizing ho monya kapa ho khelosa lebone le bonts'itsoeng hole le mohloli oa laser.Hona joale, boemo bona ha bo teng ka li-lasers tsa CO2. , litšepe tse ngata li tla oxidize feela (kapa li chese).Ho rarahana le litšenyehelo tsa ho sebetsa ka tšepe li ntse li eketseha ka potlako.
Seo u se ngotseng ke 'nete, ke ka lebaka leo ke ileng ka nahana ho sebelisa tšepe e ka makotikoting kapa motsoako o mong oa brazing o ka khonehang ka mocheso o lekaneng.
Ke tla leka li-alloys tsa brazing.Ke nahana hore li tla fana ka liphello tse molemo ka ho fetisisa ka monyetla o monyenyane oa chefo ea tšepe.
Setšoantšo sa OLD_HACK se lokela ho hlokomeloa: ke laser e putsoa.Bakeng sa tšepe e se nang letho, mahlaseli a ho monya a tla sebetsa ho feta CO2 laser. Sena se boetse se bolela hore beam e fokolang haholo e bonts'oa morao ho laser mme ka hona e sa tsitsa.
http://www.laserfocusworld.com/articles/2011/04/laser-marking-how-to-choose-the-best-laser-for-your-marking-application.html
Tabeng ena, bolelele ba maqhubu ha bo na taba.Phetoho ea litšoaneleho tsa ho monya ha litšepe sebakeng sa maqhubu a maqhubu a 400nm ho isa ho 10um ha ea lekana ho bapala karolo mona.Tlhabotsi ea bohlokoa haholo ke ho bonahatsa maikutlo ka lebaka la ho bata ha bokaholimo le boleng. ka bokaholimo bo sa tsitsang, sebaka se bataletseng se ka khutlisetsa khanya e eketsehileng holimo.
Li-lasers tsa diode li na le maikutlo a mangata ho li-back reflections.Ho senyeha ha sefahleho sa ho qetela, ho se tsitse ha maqhubu, le liphetoho tsa sebopeho sa beam li ka 'na tsa etsahala.Ho itšehla thajana ea Faraday ho ka sebelisoa ho fokotsa bothata bona bo ka bang teng.
Li-lasers tsa khase (tse kang CO2 lasers tse amehang mona) li ke ke tsa senngoa ke litšoantšo tse ka morao.Ebile, mokhoa ona o ka sebelisoa ho etsa Q-switching ka boomo ho fihlela matla a phahameng a pulse peak.
Mohlomong sebelisa Nd: YAG lasers, ytterbium fiber lasers kapa lasers tse tšoanang, tseo hangata li sebelisetsoang ho khaola tšepe ho e-na le ho sebelisa li-lasers tsa CO2. joalo ka polasetiki), empa e ke ke ea ba le phello leha e le efe holim'a tšepe.
Ke tšepa hore karoloana e kae ea thepa ea polasetiki e qalang? Ke tšepa hore e batla e le khōlō 'me e ke ke ea ata moeeng, hobane haeba likaroloana tsa polasetiki li ka kena moeeng 'me li khomarela seiponeng sa hao, lense le li-output coupler, haufinyane u tla ba le letsatsi le lebe. .
E le ho fokotsa boemo bona, li-optics li tlameha ho aroloa ka ho feletseng ho "sebaka sa mosebetsi" ho thibela phofo ea polasetiki ho kena.
Hi, just to tell you this is good news!!The company I work for, we produce and manufacture powders for SLS PA12, PA11, TPU, and polycaprolactone and waxes for sls.I really think this is the technology of the future!!If you need customized sls materials, please feel free to contact me!marga.bardeci@advanc3dmaterials.com
Ke nahana hore manonyeletso a laser sintering a ka ba a pholileng-ha ho na pampiri e hlokahalang! Na u ka fana ka lisebelisoa?
Hantle, nke ke ka o nea yona.Sena
Ena e kanna ea ba mohopolo o motle bakeng sa Netherlands
.Empa kea tseba hore batho ba bang ba entse pampiri e entsoeng ka sintered, hammoho le tsoekere e sintered le nesquick.
Ka ho sebelisa sebaka sa rona sa marang-rang le lits'ebeletso, u lumellana ka ho hlaka le ho beoa ha li-cookie tsa rona tsa ts'ebetso, ts'ebetso le papatso.Ithute haholoanyane
Nako ea poso: Dec-27-2021