Selective Laser Melting (SLM) inoshandisa yakakwirira-simba laser irradiation uye inonyungudusa zvachose simbi hupfu kugadzira 3D zvimiro, inova yakanyanya kugona simbi yekuwedzera yekugadzira tekinoroji. Inonzi zvakare laser melting welding tekinoroji. Kazhinji, inoonekwa sebazi reSSS tekinoroji.
Mukuita kwekudhinda kweSLS,Iyo simbi inoshandiswa ihupfu yakasanganiswa yesimbi yakanyunguduka uye yakaderera kana mamorekuru zvinhu. Iyo yakaderera yakanyunguduka inonyungudutswa asi iyo yakakwira melting point simbi poda haina kunyungudutswa mukuita.Kushandisa Isu tinoshandisa iyo yakanyungudutswa kuti tiwane mhedzisiro yekubatanidza uye kuumba.Nekuda kweizvozvo, mubatanidzwa une pores uye urombo mechanical properties. Remelting pakupisa kwepamusoro kwakakosha kana ichida kushandiswa.
Maitiro ese ekudhinda kweSLM anotanga nekucheka 3D CAD data uye kushandura 3D data kuita yakawanda 2D data. Iyo fomati ye3D CAD data inowanzova STL faira. Inoshandiswawo zvakanyanya mune mamwe akaturikidzana 3D maitiro ekudhinda. Tinogona kupinza iyo CAD data muiyo slicing software uye kuseta akasiyana hunhu paramita, uye zvakare kuseta mamwe edhinda ekudzora paramita. Mukuita kwekudhinda kweSLM, chekutanga, chidimbu chakatetepa chinodhindwa zvakafanana pane substrate, uye ipapo iyo 3D chimiro kudhinda kunoonekwa nekufamba kweiyo Z axis.
Kudhinda kwese kunoitwa mumudziyo wakavharwa wakazadzwa neinert gas argon kana nitrogen kuderedza okisijeni kusvika 0.05%. Nzira yekushanda yeSLM ndeyekudzora galvanometer kuti ione laser irradiation yehupfu yakasungirirwa, kupisa simbi kusvika yanyunguduka zvachose. Kana tafura ye irradiation yeimwe nhanho inopedzwa, tafura inofamba pasi, uye nzira yekuisa tile inoita kushanda kwetairi zvakare, uye ipapo laser .Mushure mekupedzwa kwekuvhenekera kwechikamu chinotevera, hutsva hutsva hwehupfu hunonyunguduka uye hunobatanidzwa nechekare,.Kutenderera uku kunodzokororwa kuti pakupedzisira kupedze 3D geometry.Iyo nzvimbo yekushanda inozadzwa nesimbi inert inodzivirira ine oxid powder. air circulation system kubvisa spark inogadzirwa ne laser.
Iwo SLM anodhinda masevhisi eJS ekuwedzera anoshandiswa munzvimbo dzakasiyana siyana, sekugadzira mold, maindasitiri chaiwo zvikamu, aerospace, kugadzira mota, zvikumbiro zvekurapa, kutsvagisa kwesainzi, uye kumwe kugadzirwa kwebhechi isina kuumbwa kana kugadzirisa. SLM tekinoroji inokurumidza prototyping ine hunhu hwechimiro chakafanana uye isina maburi, ayo anogona kuona yakanyanya kuomarara chimiro uye inopisa mumhanyi dhizaini.
