He ʻenehana maikaʻi a maʻalahi hoʻi ka paʻi 3D me nā hoʻohana he nui ʻole. Eia nō naʻe, a hiki i kēia manawa, ua kaupalena ʻia i hoʻokahi mea - ka nui o ka mīkini paʻi 3D.
E loli koke paha kēia. Ua hoʻomohala kahi hui UC San Diego i kahi huʻa e hiki ke hoʻonui a hiki i 40 mau manawa o kona nui mua.
"I ka hana ʻana o kēia au, ʻo kahi palena i ʻae nui ʻia, ʻo ia nā ʻāpana i hana ʻia me ka hoʻohana ʻana i nā kaʻina hana hoʻohui a subtractive paha (e like me nā mīkini hana, nā wili, a i ʻole nā mea paʻi 3D) pono e liʻiliʻi ma mua o nā mīkini ponoʻī e hana ana iā lākou. i mīkini ʻia, hoʻopaʻa ʻia, hoʻoheheʻe ʻia a hoʻopili ʻia paha e hana i nā hale nui aʻe."
"Ua hoʻomohala mākou i kahi resin prepolymer foamed no ka hana ʻana i nā mea hoʻohui lithographic e hiki ke hoʻonui ma hope o ka paʻi ʻana e hana i nā ʻāpana a hiki i 40 mau manawa o ka nui mua. He nui nā hale e hana ana iā lākou."
ʻO ka mea mua, ua koho ka hui i kahi monomer e lilo i poloka kūkulu o ka resin polymer: 2-hydroxyethyl methacrylate. A laila pono lākou e ʻimi i ka nui kūpono o ka photoinitiator a me kahi mea puhi kūpono e hui pū me 2-hydroxyethyl methacrylate. Ma hope o nā hoʻokolohua he nui, ua hoʻoholo ka hui i kahi mea puhi kuʻuna ʻole i hoʻohana pinepine ʻia me nā polymers polystyrene-based.
Ma hope o ko lākou loaʻa ʻana o ka resin photopolymer hope loa, ua paʻi ka hui 3D i kekahi mau hoʻolālā CAD maʻalahi a hoʻomehana iā lākou a hiki i 200°C no nā minuke he ʻumi. Ua hōʻike nā hopena hope loa ua hoʻonui ʻia ke ʻano e 4000%.
Manaʻo nā kānaka noiʻi hiki ke hoʻohana ʻia ka ʻenehana i nā noi māmā e like me nā airfoils a i ʻole nā mea kōkua buoyancy, a me nā noi aerospace, ikehu, kūkulu hale a me nā noi biomedical. Ua paʻi ʻia ke aʻo ʻana ma ACS Applied Materials & Interface.
Ka manawa hoʻouna: ʻApelila-19-2023