Iindaba

Umgubo wetekhnoloji yokuprinta ye-Metal 3DIsishwankathelo senkqubo yokubumba, ulwazi olushushu, njengeyona nxalenye ibalulekileyo yecandelo lesinyithi uthotho lweshishini lokuprinta le-3D, nalo lixabiso elikhulu. Kwinkomfa yeshishini lokuprinta le-3D leHlabathi ka-2013, iingcali eziphambili kwishishini lokuprinta le-3D leHlabathi zinike inkcazo ecacileyo yepowder yesinyithi eprintiweyo ye-3D, oko kukuthi, ubungakanani obungaphantsi kwe-1mm yamasuntswana esinyithi. Ibandakanya umgubo wesinyithi omnye, umgubo we-alloy kunye nomgubo othile odibeneyo ongenanto enepropathi yesinyithi. Okwangoku, izixhobo zepowder yesinyithi eziprintiweyo ze-3D ziquka i-cobalt-chromium alloy, intsimbi engatyiwayo, intsimbi yezimboni, i-bronze alloy, i-titanium alloy kunye ne-nickel-aluminium alloy. Kodwa umgubo wesinyithi oprintiweyo we-3D akufuneki ube ne-plasticity elungileyo kuphela, kodwa ukwanelisa neemfuno zobukhulu besuntswana obuhle, ukusasazwa kobukhulu besuntswana obuncinci, i-sphericity ephezulu, ukugeleza okuhle kunye noxinano oluphezulu olukhululekileyo. Ngenxa yeemfuno ezahlukeneyo zokusetyenziswa kunye nenkqubo yokubumba elandelayo, iindlela zokulungiselela umgubo wesinyithi nazo zahlukile. Ngokwenkqubo yokulungiselela, ibandakanya ikakhulu indlela yekhemistri yomzimba kunye nendlela yoomatshini. Kwishishini le-Powder metallurgy, iindlela ezifana ne-electrolysis, ukunciphisa kunye ne-atomization zisetyenziswa kakhulu. Nangona kunjalo, kufuneka kuqatshelwe ukuba zombini ezi ndlela zinemida yazo, azifanelekanga ukulungiswa komgubo we-alloy. Okwangoku, umgubo wesinyithi wokwenziwa kwezinto ezongeziweyo ugxile kakhulu kwi-titanium alloy, i-alloy yobushushu obuphezulu, i-cobalt-chromium alloy, intsimbi enamandla aphezulu kunye nentsimbi eyomileyo. Ukuze kuhlangatyezwane neemfuno zezixhobo zokwenziwa kwezinto ezongeziweyo kunye nenkqubo, umgubo wesinyithi kufuneka ube neempawu zomxholo ophantsi weoksijini kunye ne-nitrogen, inqanaba elihle le-spherical, uluhlu oluncinci lokusasazwa kwamasuntswana kunye noxinano oluphezulu olukhululekileyo. Okwangoku, iindlela eziphambili zokulungiselela iipowder zesinyithi zokwenziwa kwezinto ezongeziweyo yi-plasma rotating electrode (PREP), i-plasma atomization (PA), i-gas atomization (GA) kunye ne-plasma spheroidization (PS), zonke zingasetyenziselwa ukulungiselela i-spherical okanye near-spherical metal powder.