ʻO ka ulu ʻana o nā koi o ka conductivity uila, ka hoʻokele wela, a me ke kūpaʻa ʻana i ka palaho ua waiho i nā mea hana he nui e hakakā nei e ʻimi i nā mea kūpono. Hāʻawi nā mea hoʻohui keleawe i nā hoʻonā i kēia mau pilikia, akā ke hana ʻia me ka pololei.
He mea nui nā mea hoʻohui keleawe i ka hana ʻana o kēia au no ka mea hoʻohui lākou i ka conductivity uila maikaʻi loa me nā waiwai thermal kupaianaha a me ke kūpaʻa ʻana i ka pala. Ke hana ʻia me ka mīkini kikoʻī me ka hoʻohana ʻana i ka ʻenehana CNC, hāʻawi nā ʻāpana keleawe i ka hana maikaʻi loa i nā noi mai nā ʻōnaehana uila a i nā wahi kai, e lilo ai lākou i mea hiki ʻole ke hoʻololi ʻia i ka ʻāina ʻoihana o kēia lā.
Nā ʻāpana keleawe i hana ʻia me ka mīkini CNC pololei
I loko o kā mākou mau makahiki he ʻumi o ka ʻike hana ʻana, ua ʻike mākou i nā mea hoʻohui keleawe e lilo i mea nui ma nā ʻoihana he nui. I ka holomua ʻana o ka ʻenehana, ua ulu nui ka noi no nā ʻāpana keleawe i hana pono ʻia. E ʻae mai iaʻu e kaʻana like i nā mea a mākou i aʻo ai e pili ana i ka hana ʻana me kēia mau metala versatile.
Pehea e pili ai nā waiwai kūikawā o ke keleawe i nā kaʻina hana mīkini kikoʻī?
Hoʻopilikia pinepine nā mea hana mīkini i ke ʻano o ke keleawe e ʻāwili a pipili i nā mea hana ʻoki, e hana ana i nā ʻili maikaʻi ʻole a me ka ʻaʻahu ʻana o nā mea hana. Me ka ʻole o nā ʻano hana kūpono, hiki i kēia mau pilikia ke alakaʻi i nā ʻāpana i hōʻole ʻia a me ka hoʻonui ʻia o nā kumukūʻai.
ʻO ke alakaʻi wela maikaʻi loa o ke keleawe e pono ai nā ʻano hana mīkini kikoʻī, me nā hoʻolālā hoʻomaʻalili kūpono a me nā palena ʻoki. ʻO ke ductility o ka mea ʻo ia hoʻi ka hoʻohana ʻana i nā mea hana ʻoki ʻoi, nā wikiwiki ʻoki kūpono (maʻamau 300-500 SFM), a me ka nui o ka lubricant e pale ai i ka hōʻiliʻili ʻana o nā mea ma nā kihi o ka mea hana, e hōʻoiaʻiʻo ana i nā ʻoki laumania a pale i ka paʻakikī o ka hana.
Ke kaʻina hana mīkini keleawe e hōʻike ana i ka noi coolant
He paradox hoihoi ka keleawe i ka honua mīkini. ʻOiai ʻo kona palupalu e hōʻike ana i ka maʻalahi o ka mīkini ʻana, ʻo kona conductivity thermal kiʻekiʻe a me ka ductility e hana i nā pilikia kūikawā e koi ana i nā ala kūikawā. Ma kā mākou hale hana, ua hoʻomohala mākou i kekahi mau ʻano hana e lanakila ai i kēia mau pilikia kūlohelohe.
No ka hana ʻana i ka mīkini keleawe holomua, lilo ke koho ʻana i mea hana i mea koʻikoʻi. Hoʻohana pinepine mākou i ke kila wikiwiki (HSS) a i ʻole nā mea hana carbide me nā kihi rake maikaʻi ma waena o 5-15 degere e ʻokiʻoki i ka mea ma mua o ka hoʻokomo ʻana i loko. Hoʻemi kēia i ke ʻano "gummy" i ʻike ʻia ai ke keleawe. Pono e hoʻomalu pono ʻia nā wikiwiki ʻoki - wikiwiki loa a ʻaʻahu mua nā mea hana, lohi loa a hamo ka mea ma mua o ka ʻoki maʻemaʻe.
He mea nui like nā hoʻolālā hoʻoluʻu ma muli o ke alakaʻi wela maikaʻi loa o ke keleawe. ʻAʻole e like me kekahi mau metala, kahi e hoʻopili ai ka wela ma kahi kokoke i ka ʻoki ʻana, hoʻopuehu koke ke keleawe i ka wela ma loko o ka workpiece. Hoʻohana mākou i nā ʻōnaehana coolant kahe e kuhikuhi pololei i ka lubricant ma ka interface ʻoki. Ma kekahi mau noi kikoʻī kiʻekiʻe, ua ʻike mākou ʻoi aku ka maikaʻi o nā coolants i hoʻokumu ʻia i ka ʻaila ma mua o nā hoʻonā wai ma ka hāʻawi ʻana i ka lubricity maikaʻi aʻe.
| Laina Mīkini | Pae i manaʻo ʻia no ke keleawe | Ka hopena ma ke kaʻina hana |
|---|---|---|
| ʻO kaʻokiʻana | 300-500 SFM | Kāohi i ka hamo ʻana o nā mea |
| Helu hānai | 0.003-0.010 ʻīniha/hoʻohuli | Hoʻomalu i ka hoʻokumu ʻana o nā ʻāpana |
| ʻO ke kihi ʻohi mea hana | 5-15 kekelē maikaʻi | Hoʻemi i ka hōʻiliʻili ʻana o nā mea |
| ʻAno Hoʻoluʻu | Makemake ʻia ka ʻaila | Hoʻomaikaʻi i ka lubricity |
| Mea Paahana | HSS a i ʻole Carbide | Mālama i ka lihi ʻoi |
ʻO wai nā Alloys Copper e hāʻawi i ka hana kūpono loa no nā ʻāpana i hana ʻia e CNC?
Hoʻopilikia pinepine nā ʻenekinia i ka loiloi ʻana i ke koho ʻana mai nā ʻumi o nā mea hao keleawe, kēlā me kēia me nā waiwai like ʻole. Me ka ʻole o ke alakaʻi maopopo, pilikia lākou i ke koho ʻana i nā mea i hana maikaʻi ʻole a ʻoi aku paha ma mua o nā palena kālā me ke kumu ʻole.
ʻO ke kopa keleawe kūpono e pili ana i nā koi kikoʻī o ka noi. Hāʻawi ʻo C110 (ETP Copper) i ka conductivity uila kiʻekiʻe loa no nā ʻāpana hoʻoili mana. Hāʻawi ʻo C360 (Free-Cutting Brass) i ka mīkini maikaʻi loa no ka hana nui. No nā kaiapuni kai, hāʻawi ʻo C71500 (Copper-Nickel) i ke kūpaʻa ʻoi aku ka maikaʻi ma mua o ka corrosion, ʻoiai ʻo nā kopa keleawe e like me C54400 e hāʻawi i ka ikaika me ka conductivity kūpono.
Ke koho ʻana o nā mea hao keleawe maʻamau i hoʻohana ʻia i ka mīkini CNC
Ma o nā makahiki o ka ʻike hana ʻana, ua ʻike au ʻo ke koho ʻana i ka hui keleawe kūpono e hiki ke hana i ka ʻokoʻa ma waena o kahi ʻāpana e hana wale ana a me kahi mea i ʻoi aku ka maikaʻi i kāna noi. Hāʻawi kēlā me kēia hui keleawe i kahi hui kū hoʻokahi o nā waiwai e pono e hoʻohālikelike pono ʻia i ka hoʻohana i manaʻo ʻia.
ʻO ka hapa nui o nā noi uila a me nā mea uila e pōmaikaʻi ai mai C101 (Oxygen-Free Copper) a me C110 (Electrolytic Tough Pitch). Hāʻawi kēia mau mea hoʻohui i nā waiwai conductivity e kokoke ana i 100% IACS (International Annealed Copper Standard), e lilo ia i mea kūpono no nā noi kiʻekiʻe-aupuni. Eia nō naʻe, ʻo ko lākou ikaika haʻahaʻa ʻo ia hoʻi ʻaʻole kūpono lākou no nā ʻāpana ma lalo o ke kaumaha mechanical.
No nā noi e pono ai ka ikaika a me ka conductivity, hāʻawi nā hui keleawe beryllium e like me C17200 i kahi ʻaelike maikaʻi loa. Me ka conductivity ma kahi o 22% IACS a me nā ikaika tensile e ʻoi aku ana ma mua o 200,000 psi ma hope o ka mālama wela ʻana, ʻoi aku ka maikaʻi o kēia mau hui i nā pilina puna, nā bearings, a me nā mea hana ʻaʻole e hoʻāla. Eia nō naʻe, pono lākou e mālama pono i ka wā o ka mīkini ma muli o ke ʻano ʻawahia o ka beryllium.
Ua loaʻa i nā mea hoʻohui keleawe, ʻo C360 a me C353, ko lākou kaulana ma ke ʻano he mau lio hana o ka ʻohana mea hoʻohui keleawe. ʻO kā lākou ʻike kēpau (ʻoiai ua hoʻemi ʻia ma muli o nā lula kaiapuni) e hana i kahi hopena haki ʻāpana kūlohelohe i ka wā o ka mīkini. Ua ʻike mākou he kūpono loa kēia mau mea hoʻohui no nā holo hana nui kahi e hoʻopilikia pololei ai ka mīkini i nā kumukūʻai hana.
| Koho Alloy | haku mele | Nā Mea Nui | Nā polokalamu maikaʻi loa |
|---|---|---|---|
| C110 (ETP) | 99.9% Cu | ʻO ke alakaʻi kiʻekiʻe loa (100% IACS) | Nā alakaʻi uila, nā kikowaena |
| C360 keleawe | 61.5% Cu, 35.5% Zn, 3% Pb | Machinability maikaʻi loa | Nā kiwikā, nā mea hoʻohui, nā lako hoʻonaninani |
| C17200 Beryllium Copper | 98% Cu, 1.9% Be | Ikaika kiʻekiʻe, conductivity maikaʻi | Nā pūnāwai, nā mea hana ʻoki kino |
| C71500 Keleawe-Nikela | 70% Cu, 30% Ni | ʻO ke kūpikipiki o ke kino | Nā ʻāpana moana, nā mea hoʻololi wela |
| C54400 Keleawe Phosphor | 88% Cu, 10% Sn, 2% P | Ikaika maikaʻi a me ke kūpaʻa ʻana i ka ʻaʻahu | Nā Bushings, nā kia, nā bearings |
Āhea e koho ai nā ʻenekinia i ke keleawe ma mua o nā metala ʻē aʻe no nā ʻāpana CNC?
Hoʻohana pinepine nā ʻenekinia hoʻolālā i ka alumini a i ʻole ke kila ma muli o ka maʻa ma mua o ka hana kūpono. ʻO kēia hemahema pinepine ka hopena i nā ʻāpana i hiki ʻole ke hoʻokō i nā koi uila, wela, a i ʻole ka pala i nā wahi koi.
Pono nā ʻenekinia e koho i ke keleawe ke koi nā noi i ka conductivity uila kiʻekiʻe (ʻaneʻane pālua o ka alumini), ka hoʻokele wela maikaʻi loa (conductivity kiʻekiʻe me nā pilikia galvanic ʻole), nā waiwai antimicrobial, a i ʻole ke kūpaʻa ʻana i ka corrosion i nā wahi kai. ʻOiai ke kiʻekiʻe o nā kumukūʻai mea, ʻo nā pono hana o ke keleawe a me ke ola lawelawe lōʻihi e hāʻawi pinepine i ka waiwai holoʻokoʻa maikaʻi aʻe.
Hoʻohālikelike mea e hōʻike ana i nā ʻāpana keleawe, alumini a me ke kila
Ma koʻu ʻike i ka nānā ʻana i nā tausani o nā papahana mīkini, ʻo ka hoʻoholo e hoʻohana i ke keleawe e iho pinepine i kahi loiloi akahele o nā koi hana e kūʻē i nā palena kālā. ʻOiai ʻoi aku ke kumukūʻai o ke keleawe ma mua o ka alumini a me kekahi mau kila, ʻo kona ʻano waiwai kū hoʻokahi e hāʻawi pinepine i ka waiwai lōʻihi.
ʻO nā noi uila paha ka hihia maopopo loa no ke koho ʻana i ke keleawe. Me ka conductivity ma kahi o 60% kiʻekiʻe ma mua o ka alumini ma ka nui, ʻae ke keleawe no nā ʻāpana kea liʻiliʻi i nā ʻāpana hoʻolaha mana, e mālama ana i kahi i nā hoʻolālā compact. Lilo kēia i mea nui loa i nā noi e like me nā kaʻa uila, kahi e koʻikoʻi ai ka nui o ka mana. Ua hana mākou i nā busbars a me nā mea hoʻohui he nui kahi i hoʻāpono ai ka ʻokoʻa hana ma waena o ke keleawe a me ka alumini i ke kumukūʻai mea hou aʻe.
ʻO ka hoʻokele wela ke ʻano o kahi ʻāpana ʻē aʻe kahi e ʻoi aku ai ke keleawe. I nā noi hoʻoheheʻe wela, ʻoi aku ka maikaʻi o ka conductivity wela o ke keleawe (ma kahi o 385 W/m·K) ma mua o ka alumini (ma kahi o 205 W/m·K). No nā mea uila wela kiʻekiʻe a me nā ʻōnaehana mana, hiki i kēia ʻokoʻa ke hoʻoholo inā hana nā ʻāpana i loko o nā pae mahana palekana. Ua hoʻololi kekahi mea kūʻai aku aerospace mai ka alumini i nā mea hoʻololi wela keleawe ma hope o ka ʻike ʻana i nā pilikia throttling thermal i kā lākou ʻōnaehana avionics.
ʻO ke kūpaʻa ʻana i ka palaho e hāʻawi i kahi kumu koʻikoʻi ʻē aʻe e koho ai i ke keleawe, ʻoi aku hoʻi i nā noi hana kai a me nā kemika. ʻAʻole e like me nā kila kila e hiki ke ʻeha i ka pala ʻana o ka lua a me ka crevice i nā wahi wai paʻakai, hana nā mea hoʻohui keleawe-nickel i kahi patina pale ponoʻī e hoʻomaikaʻi maoli i ka hala ʻana o ka manawa. ʻO kēia waiwai ka mea e waiwai nui ai nā mea hoʻohui keleawe i nā ʻōnaehana hoʻoluʻu wai kai a me nā lako ma waho.
| Ka Pono Uiho | Pōmaikaʻi Keleawe | Nā mea hoʻohālike |
|---|---|---|
| Hana uila | Kokoke i ka conductivity 60% kiʻekiʻe ma mua o ka alumini | Nā kaʻa pahi, nā kikowaena, nā mea hoʻohui |
| Mahana hoʻomehana | 1.8 × ʻoi aku ka maikaʻi o ka conductivity thermal ma mua o ka alumini | Nā poho wela, nā papa hoʻoluʻu, nā mea hoʻololi |
| Kahi Kuʻuna Corrosion | Hoʻopau ponoʻī ʻana ma nā wahi he nui | Nā mea hana kai, nā ʻāpana hana kemika |
| ʻAno ʻAi ʻAiʻi | Pepehi maoli i nā bacteria a me nā virus | Nā ʻāpana hāmeʻa lapaʻau, nā ʻili paʻi |
| Waiwai nani | ʻAno nani, ulu ʻana o ka patina | Nā mea hoʻolālā hale, nā waiwai hoʻohiwahiwa |
Panina
Hāʻawi nā mea hoʻohui keleawe i ka hana kūpono ʻole i nā noi uila, wela, a me ka ʻino i ka wā e mīkini pololei ʻia ai. Ma ka hoʻomaopopo ʻana i nā waiwai kūikawā o ke keleawe a me ke koho ʻana i ka mea hoʻohui kūpono, hiki i nā mea hana ke hana i nā ʻāpana e ʻoi aku ka maikaʻi ma mua o nā koho ʻē aʻe me ka ʻoi aku o nā kumukūʻai mua.
