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. Singangenisa idatha yeCAD kwisoftware yokusika kwaye sisete iiparamitha zophawu olwahlukeneyo, kwaye sisete ezinye iiparamitha zolawulo loshicilelo. Kwinkqubo yoshicilelo lwe-SLM, okokuqala, umgca obhityileyo uprintwa ngokufanayo kwi-substrate, kwaye emva koko ukuprintwa kwe-3D kubonakala 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%. Indlela yokusebenza ye-SLM kukulawula i-galvanometer ukuqaphela i-laser irradiation ye powder tiled, ukufudumeza isinyithi de kuncibilike ngokupheleleyo. Xa itheyibhile ye-irradiation yomgangatho omnye igqityiwe, itafile ihla, kwaye i-tileing mechanism yenza kwakhona i-tile operation, kwaye emva koko i-laser .Emva kokugqitywa kwe-irradiation yoluhlu olulandelayo, uluhlu olutsha lwepowder luyancibilika kwaye luhlanganiswe kunye noluhlu lwangaphambili,.Lo mjikelo uphinda ugqitywe ekugqibeleni i-3D geometry. inkqubo yokujikeleza komoya ukuphelisa intlantsi eyenziwe yilaser.
Iinkonzo zoshicilelo lwe-SLM zezongezelelo ze-JS zisetyenziswa kwiinkalo ezahlukeneyo, ezifana nokuveliswa kwesikhunta, amacandelo achanekileyo kwimizi-mveliso, i-aerospace, ukuveliswa kweemoto, izicelo zonyango, uphando lwezenzululwazi, kunye nenye ibhetshi encinci yokuvelisa okanye ukwenza ngokwezifiso. Itekhnoloji ye-SLM iprototyping ekhawulezayo ineempawu zesakhiwo esifanayo kwaye akukho mingxunya, enokuqonda ubume obuntsonkothileyo kunye noyilo lwembaleki eshushu.
