Selective Laser Melting (SLM) inoshandisa yakakwirira-simba laser irradiation uye inonyungudutsa zvachose simbi hupfu kugadzira 3D maumbirwo, 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 metal 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 yekuvhenekera yeimwe nhanho inopedzwa, tafura inofamba pasi, uye nzira yekuisa tile inoita kushanda kwe tile zvakare, uye ipapo laser .Mushure mekupedzwa kwekuvhenekera kwechikamu chinotevera, hutsva hutsva hwehupfu hunonyunguduka uye hunobatanidzwa. pamwe nechekare layer,.Kutenderera uku kunodzokororwa kuti pakupedzisira kupedze 3D geometry.Nzvimbo yekushanda yakazadzwa negasi inert kudzivirira hupfu hwesimbi kubva pakuva oxidized,.Vamwe vane air circulation system kuti vabvise spark inogadzirwa nelaser.
Iwo SLM anodhinda masevhisi eJS ekuwedzera anoshandiswa munzvimbo dzakasiyana siyana, sekugadzira mold, maindasitiri echokwadi zvikamu, aerospace, kugadzira mota, zvikumbiro zvekurapa, tsvakiridzo yesainzi, uye zvimwe zvidiki diki kugadzirwa kana kugadzirisa.SLM tekinoroji yekukurumidza prototyping ine hunhu hwechimiro chakafanana uye isina maburi, ayo anogona kuona yakanyanya kuomarara chimiro uye inopisa mumhanyi dhizaini.