I-Selective Laser Melting (SLM) isebenzisa i-laser ene-eneji ephezulu kwaye inyibilikisa ngokupheleleyo umgubo wesinyithi ukwenza iimilo ze-3D, eyona teknoloji yokuvelisa isinyithi esongezelelweyo.Ikwabizwa ngokuba yitekhnoloji yokunyibilikisa i-laser.Ngokubanzi, ithathwa njengesebe letekhnoloji ye-SLS.
Kwinkqubo yoshicilelo lwe-SLS, imathiriyeli yesinyithi esetyenzisiweyo ngumgubo oxutyiweyo wesinyithi ocutshungulweyo kunye nendawo ephantsi yokunyibilika okanye imathiriyeli yemolekyuli.Izinto ezincibilikayo eziphantsi ziyancibilika kodwa i-metal melting point powder ayinyibiliki kwi-process.use Sisebenzisa izinto ezincibilikisiweyo ukuze sifezekise umphumo wokubambisana kunye nokubumba.Ngenxa yoko, iqumrhu lineepores kunye neepropati ezimbi zomatshini.Ukunyibilika kwakhona kwiqondo lokushisa eliphezulu kubalulekile ukuba kufuneka kusetyenziswe.
Yonke inkqubo yoshicilelo lwe-SLM iqala ngokusika idatha ye-3D CAD kunye nokuguqula idatha ye-3D kwiidatha ezininzi ze-2D.Ifomathi yedatha ye-3D CAD idla ngokuba yifayile ye-STL.Ikwasetyenziswa ngokubanzi kwezinye iindlela zoshicilelo lwe-3D.Sinokungenisa idatha ye-CAD kwisoftware yokusika kwaye sisete iiparamitha zeempawu ezahlukeneyo, kwaye sisete ezinye iiparamitha zolawulo loshicilelo.Kwinkqubo yoshicilelo lwe-SLM, okokuqala, umgca obhityileyo uprintwa ngokufanayo kwi-substrate, kwaye emva koko ukuprintwa kwe-3D kuyabonakala ngokuhamba kwe-axis ye-Z.
Yonke inkqubo yokushicilela iqhutyelwa kwisitya esivaliweyo esizaliswe yi-inert gas argon okanye i-nitrogen ukunciphisa umxholo we-oxygen kwi-0.05%.Imodi yokusebenza ye-SLM kukulawula i-galvanometer ukuqonda i-laser irradiation ye powder tiled, ukufudumeza isinyithi kuze kube yilapho inyibilika ngokupheleleyo.Xa itheyibhile ye-irradiation yomgangatho omnye igqityiwe, itafile ihla, kwaye i-tileing mechanism yenza umsebenzi we-tile kwakhona, kwaye emva koko i-laser. ngomaleko wangaphambili,.Lo mjikelo uphindwa ngokuphindaphindiweyo ukuze ekugqibeleni uzalise i-geometry ye-3D.Isithuba sokusebenza sizaliswe ngegesi ye-inert ukukhusela i-powder yensimbi ekubeni i-oxidized,.Abanye banenkqubo yokujikeleza komoya ukuphelisa i-spark eyenziwa yi-laser.
Iinkonzo zoshicilelo lwe-SLM zezongezelelo ze-JS zisetyenziswa kwiinkalo ezahlukeneyo, ezifana nokuveliswa kwesikhunta, amacandelo achanekileyo amashishini, i-aerospace, ukuveliswa kweemoto, izicelo zonyango, uphando lwezenzululwazi, kunye nezinye iibhetshi ezincinci zemveliso okanye ukwenza ngokwezifiso.Itekhnoloji ye-SLM iprototyping ekhawulezayo ineempawu zesakhiwo esifanayo kwaye akukho mingxunya, enokuqonda ubume obuntsonkothileyo kunye noyilo lwembaleki eshushu.