ʻO Stereolithography (SLA) - Ke Koho Kūpono no ka Paʻi 3D Kiʻekiʻe
ʻO ka Stereolithography (SLA a i ʻole SL) he ʻenehana paʻi 3D kiʻekiʻe e hoʻohana ana i ka resin photosensitive ma ke ʻano he mea maka. Hoʻohana kēia ʻenehana i nā waiwai hoʻōla wikiwiki o ka resin photosensitive ma lalo o ka irradiation laser UV wavelength kikoʻī, e hiki ai ke hana pono i nā ʻano 3D paʻakikī ma o ka hana papa-ma-papa.
I ke kaʻina hana ʻana, hana koke ʻia ka resin photosensitive wai i ka polymerization a me ka solidification ke hōʻike ʻia i ka mālamalama UV (ka laulā nalu ma kahi o 250-400nm). Hoʻopili pololei ka mīkini SLA i ka laser UV ma luna o ka ʻili o ka resin photosensitive, e hoʻōla mālie ana i ka resin mai kahi kiko a i ka laina a laila mai ka laina a i ka ʻili, e hoʻokō ana i nā kiʻi ʻokiʻoki pololei o kēlā me kēia papa. Papa ma ka papa, kūkulu ʻia kahi kumu hoʻohālike 3D paʻa a kikoʻī.
Hāʻawi ka Stereolithography i nā pono e like me ke kiʻekiʻe o ka hoʻoheheʻe ʻana, nā ʻili laumania, a me ka hana hou ʻana i nā kikoʻī kiʻekiʻe. Hoʻohana nui ʻia ia i ka hana ʻana i nā kumu hoʻohālike ʻoihana, ka hoʻolālā ʻana i nā mea lapaʻau, ka hoʻolālā ʻana i nā mea hoʻonani, ka hana ʻana i nā mold, a me nā prototyping kiʻekiʻe. ʻO kona hana wikiwiki a pololei hoʻi e hoʻopōkole nui i nā pōʻaiapuni hoʻomohala huahana, e lawe mai ana i ka maʻalahi a me ka hana hou i ka ʻoihana hana.
ʻAʻole wale ʻo SLA (Stereolithography) kahi ʻenehana koʻikoʻi i ka paʻi 3D, akā he hopena kūpono loa hoʻi no ka hoʻokō ʻana i ke ʻano prototyping kiʻekiʻe a me ka hana hana liʻiliʻi, e kōkua ana i nā ʻoihana e hoʻokō i nā kūlana kiʻekiʻe i ka hana kikoʻī.
Nā Resins Photosensitive Radical manuahi:
Nā Pōmaikaʻi: Kumukūʻai haʻahaʻa, hoʻōla wikiwiki, paʻakikī maikaʻi, viscosity haʻahaʻa
Nā Pōʻino: Kaohi nui ʻana o ka oxygen, ka emi nui ʻana, ka ʻōwili ʻana o nā huahana i paʻi ʻia, ka pololei haʻahaʻa, a me ka pono no ka hoʻōla lua
Nā Resins Photosensitive Cationic:
Nā Pōmaikaʻi: Ka emi iki ʻana o ka nui i ka wā e hoʻōla ʻia ai, ka wikiwiki o ka hopena, ʻaʻohe pono no ka hoʻōla lua ma hope o ke kālai ʻia ʻana, ʻaʻole i hoʻopilikia ʻia e ka pale ʻana o ka oxygen, kūpaʻa maikaʻi o ka dimensional, nā waiwai mechanical maikaʻi loa, a me ke kikoʻī kiʻekiʻe
Nā Pōʻino: Lohi ka wikiwiki o ka pane ʻana, kiʻekiʻe ka mānoanoa, kiʻekiʻe ka nui o ka hōʻike ʻana o nā vinyl ethers a lohi ka hoʻōla ʻana; he palupalu nā epoxies
Nā ʻōnaehana Hybrid:
Hoʻohui nā ʻōnaehana hybrid Acrylate-epoxy i nā loina hoʻōla ʻelua i ʻōlelo ʻia ma luna, me nā mea hoʻomaka radical cationic a me free e hana pū ana.
Ua hoʻokaʻawale ʻia nā resins paʻi 3D i nā resins photosensitive radical free, nā resins photosensitive cationic, a me nā ʻōnaehana hybrid. ʻO Ever Ray, kahi mea hana me 20 mau makahiki o ka ʻike loea i ka hana ʻana a me ka hoʻomohala ʻana i nā resins photocurable, e haʻaheo ana i kahi hiki ke hana makahiki o 20,000 tons, kahi laina huahana piha, a me ka hiki ke hoʻopilikino i nā huahana. ʻO nā resins paʻi 3D e komo pū me Polyurethane 7224-1, 7200, 7296-1, a me 7253A-5.
