Nā ʻāpana Mīkini CNC Paʻa Kiʻekiʻe
He aha nā kikoʻī o nā mea ʻokoʻa CNC?
Hiki i ka mīkini CNC ke hana i nā ʻāpana mai kahi kokoke i nā metala a i ʻole ka plastic.ʻO nā waiwai hoihoi o kēia mau mea:
1. ikaika mechanical: i hōʻike ʻia e ka tensile yield strength;
2. machinability: ʻo ka maʻalahi o ka mīkini hoʻololi i ke kumukūʻai o CNC;
3. ke kumukūʻai o ka mea;
4. paʻakikī: nui no nā metala;
5. pale wela: nui no ka plastics.
Nā Metala CNC
ʻO nā noi e koi ana i ka ikaika kiʻekiʻe, ka paʻakikī, a me ke kūpaʻa wela e hoʻohana i nā metala a i ʻole, nā mea metala.
1.Aluminum: hoʻohana ʻia e hana i nā ʻāpana metala maʻamau a me nā prototypes.
2.Kila kohu ʻolehiki ke wiliwili maʻalahi, ka mīkini, a me ka poni.
3.Ke kila māmā, a i ʻole ke kila kalapona haʻahaʻa: hoʻohana ʻia no nā ʻāpana mīkini, jigs, a me nā mea paʻa.
4.kila kilaLoaʻa i nā mea hoʻohui ʻē aʻe me ka carbon e hoʻomaikaʻi i ka paʻakikī, ka paʻakikī, ka luhi, a me ke kūpaʻa ʻana.
5.Mea kilaHe mea maikaʻi ia no ka hana ʻana i nā mea hana e like me nā dies, stamps, a me nā mold.
6.keleaweHe kūpono ia no nā noi e koi ana i ka haʻahaʻa haʻahaʻa a me ka hoʻolālā e hoʻolālā i nā ʻāpana ʻano gula no nā kumu aesthetic.
ʻO nā mea palaki CNC
ʻO nā plastik he mau mea māmā me nā waiwai kino like ʻole, hoʻohana pinepine ʻia no ko lākou kūpaʻa kemika a me nā hiʻohiʻona insulation uila.
1.ABS: hoʻohana pinepine ʻia e hana i nā prototypes ma mua o ka hana nui ʻana ma o ka hoʻoheheʻe ʻana.
2.Nylon, a i ʻole polyamide (PA): hoʻohana nui ʻia no nā noi ʻenehana ma muli o kāna mau waiwai mechanical maikaʻi loa, ikaika hopena, a me ke kūpaʻa kiʻekiʻe i nā kemika a me ka abrasion.
3.PolycarbonateʻO ka maʻamau maʻamau, he mea kūpono ia no nā noi he nui, e like me nā mea hoʻoheheʻe wai a i ʻole nā mea aniani kaʻa.
ʻO POM (Delrin) ka mea i koho ʻia no ka mīkini CNC inā pono nā ʻāpana:
1. pololei kiʻekiʻe
2. rigidity kiʻekiʻe
3. haʻahaʻa haʻahaʻa
4. kūlana kūlana maikaʻi loa i nā wela kiʻekiʻe
5. haʻahaʻa loa ka wai.
PTFE (Teflon) he kū'ē i nā mahana hana ma luna o 200 °C a no laila, he insulator uila koʻikoʻi.
He kūpono ka polyethylene kiʻekiʻe (HDPE) no ka hoʻohana ʻana i waho a me ka paipu.
PEEK: hoʻohana nui ʻia e pani i nā ʻāpana metala ma muli o kona kiʻekiʻe ikaika-a-kaumaha ratio.Loaʻa nā māka lāʻau lapaʻau, no laila kūpono ʻo PEEK no nā noi biomedical.
Nā Mea Hana Hana CNC
ʻO nā mea hoʻohui, ma nā ʻōlelo maʻalahi, he mau mea me nā ʻano kino like ʻole a me nā ʻano kemika i hui ʻia e hana i kahi huahana ʻoi aku ka ikaika, māmā, a i ʻole kekahi manawa ʻoi aku ka maʻalahi.
ʻO kekahi o nā composites kaulana loa ma ka mākekei hoʻoikaika ʻia i ka plastic.I kēia lā, hoʻohana ʻia ka plastic i kahi ʻano maʻemaʻe i ka hapa nui o nā huahana, e like me nā mea pāʻani a me nā hue wai.Eia naʻe, hiki ke hoʻoikaika ʻia me nā fiber mai nā mea ʻē aʻe.Hiki i kēia ʻenehana ke loaʻa kekahi o nā mea hoʻohui ikaika, māmā, a me ka nui loa.
ʻO ka hoʻohana maʻamau o nā composites ka hoʻoikaika ʻana i kahi mea maʻemaʻe me ka fiber mai kahi maʻemaʻe ʻē aʻe a i ʻole ka mea hoʻohui.Hoʻohui pinepine ka mea hanakalapona a graphite pahai kahi hui.He conductive nā fiber carbon, loaʻa kahi hui kupaianaha o ka modulus kiʻekiʻe a me ka ikaika tensile, loaʻa kahi haʻahaʻa haʻahaʻa (ʻino ʻole) CTE (coefficient of thermal expansion), a hāʻawi i ke kūpaʻa maikaʻi i nā wela kiʻekiʻe.Hana kēia mau hiʻohiʻona i ke kalapona i fiber maikaʻi loa no nā ʻoihana like ʻole, a hoʻohui maʻalahi me nā mea he nui.
Ma waho aʻe o ke kalapona,aniani uilahe mea hoʻoikaika fiber maʻamau.ʻAʻole ikaika a ʻoʻoleʻa paha ka fiberglass e like me ka fiber carbon, akā loaʻa iā ia nā ʻano kikoʻī e makemake ai i nā noi he nui.He nonconductive ka fiber Glass (ʻo ia hoʻi, he insulator) a ʻike ʻole ʻia no ka hapa nui o nā ʻano hoʻouna.He koho maikaʻi kēia no nā polokalamu uila a hoʻolaha paha.
Resinhe ʻāpana koʻikoʻi o nā composites.ʻO ia nā matrices e hoʻopaʻa i nā mea ʻokoʻa me ka ʻole o ka hoʻohui ʻia ʻana i hoʻokahi mea maʻemaʻe.
