I-Laser ekhethiweMelting (SLM), eyaziwa nangokuthi i-laser fusion welding, iwubuchwepheshe bokukhiqiza okunezelwayo obuthembisayo kakhulu obusebenzisa ukukhanya kwelaser yamandla aphezulu ukuze kulume futhi kuncibilike ngokuphelele izimpushana zensimbi ukuze zakhe izimo eziyi-3D, futhi ngokuvamile zibhekwa njengesethi engaphansi yobuchwepheshe be-Selective Laser Sintering (SLS).
Metal -likeMizinto zokwakha
Izinto zensimbi ezisetshenziswa ku-SLS ziyingxube yensimbi ephekiwe nephansi encibilika noma into yamangqamuzana, ngesikhathi sokucubungula indawo encibilikayo ephansi iyancibilika kodwa indawo ephezulu yokuncibilika yensimbi ayishintshi.Izinto ezincibilikisiwe zisetshenziselwa ukubopha, ngakho izinto eziqinile zinezimbotshana futhi zinezimo ezingezinhle zemishini, futhi kufanele zincibilikiswe emazingeni okushisa aphezulu ngaphambi kokuba zisetshenziswe.
Konkeinqubo yeI-SLMpukukhalakuqala ngokusika idatha ye-3D CAD, ukuguqula idatha ye-3D ibe inombolo yezendlalelo zedatha ye-2D, ngokuvamile phakathi kuka-20m no-100pm ngogqinsi.Idatha ye-3D CAD ivamise ukufomethwa njengamafayela e-STL, aphinde asetshenziswe ngokujwayelekile kobunye ubuchwepheshe bokuphrinta obunengqimba be-3D.Idatha ye-CAD ingeniswa ku-software yokusika futhi imingcele yendawo ehlukahlukene isethiwe, kanye neminye imingcele yokulawula yokuphrinta.I-SLM iqala inqubo yokuphrinta ngokuphrinta ungqimba oluncane olufana noluncane ku-substrate, bese luhanjiswa ku-axis engu-Z ukuze kuphrintwe umumo we-3D.
Yonke inqubo yokunyathelisa yenziwa esitsheni esivaliwe esigcwele igesi ye-inert, i-argon noma i-nitrogen, ukunciphisa okuqukethwe kwe-oxygen ku-0.05%.Izindlela zeI-SLM ngokulawula isidlidlizi ukuze kuzuzwe i-laser irradiation ye-thayela powder, ukushisa insimbi ize incibilike ngokuphelele, izinga ngalinye letafula lomsebenzi we-irradiation liyehla, indlela yokufaka amathayela iyenziwa futhi, bese i-laser iqedela ukushiswa kwesendlalelo esilandelayo, ngakho-ke. ukuthi ungqimba olusha lwempushana luyancibilika futhi luhlanganiswe kanye nongqimba lwangaphambilini, kuphinda umjikelezo ukuze kuqedelwe ijometri ye-3D.Indawo yokusebenza ivamise ukugcwaliswa ngegesi engasebenzi ukuze kugwenywe ukugcotshwa kwempushana yensimbi kanti abanye banezinhlelo zokuzungeza komoya ukuze kuqedwe izinhlansi ku-laser.
Izingxenye eziphrintiwe ze-SLM zibonakala ngokuminyana okuphezulu namandla aphezulu.Inqubo yokunyathelisa ye-SLM inamandla amakhulu kakhulu, futhi ungqimba ngalunye lwe-powder yensimbi kufanele lushiswe endaweni yokuncibilika kwensimbi.Ukushisa okuphezulu kubangela ukucindezeleka okusele ngaphakathi kwezinto eziphrintiwe zokugcina ze-SLM, ezingathinta izakhiwo zemishini zengxenye.
Amaphrinta ensimbi e-JS Additive ahlinzekwa ngabakhiqizi basekhaya abaziwayo, futhi izinsizakalo zayo zokuphrinta zensimbi ze-3D zanda ezimakethe zaphesheya kwezilwandle emhlabeni jikelele, lapho izinga nezikhathi zokulethwa ziqashelwa kahle ngamakhasimende aphesheya, ikakhulukazi eYurophu, eMelika, eJapan, e-Italy, eSpain. kanye neSouth East Asia.Izinsizakalo zokuphrinta zensimbi ze-3D zisetshenziswa kakhulu ukusiza amabhizinisi endabuko ukuthi aguqule indlela akhiqiza ngayo, ukonga isikhathi kanye nezindleko zomkhiqizo ngokwawo, ikakhulukazi endaweni yamanje enokhahlo yalolu bhubhane.
Umnikeli: Alisa