No ke aha he mea paʻakikī ka titanium alloy i ka mīkini?

1. Nā hanana kino o ka mīkini titanium

ʻOi aku ka kiʻekiʻe o ka ikaika o ka hana ʻana o ka titanium alloy ma mua o ke kila me ka paʻakikī like, akā ʻoi aku ka paʻakikī o ke ʻano kino o ka hoʻoili ʻana i ka titanium alloy ma mua o ka hoʻoili ʻana i ke kila, e hana ai i ka hoʻoili ʻana o ka titanium alloy i nā pilikia nui.

He haʻahaʻa loa ka conductivity thermal o ka hapa nui o nā alloys titanium, ʻo 1/7 wale nō o ke kila a me 1/16 o ka alumini. No laila, ʻaʻole e hoʻoneʻe koke ʻia ka wela i hana ʻia i ka ʻoki ʻana i nā alloys titanium i ka mea hana a i ʻole e lawe ʻia e nā ʻāpana, akā e hōʻiliʻili ʻia i loko o ka ʻokiʻoki, a hiki ke kiʻekiʻe ka wela i 1 000 °C a ʻoi aku paha. , ʻo ia ka mea e hoʻopau koke ai ka ʻoki ʻoki o ka mea hana, ʻāʻī a pohā. ʻO ke kūkulu ʻia ʻana o ka lihi i kūkulu ʻia, ʻo ke ʻano wikiwiki o kahi ʻaoʻao i hoʻopau ʻia, e hoʻonui i ka wela i ka ʻoki ʻana, e hoʻopōkole ana i ke ola o ka mea hana.mīkini hana titanium

ʻO nā wela kiʻekiʻe i hana ʻia i ka wā o ke kaʻina hana e hoʻopau ai i ka pono o ka ʻili o nā ʻāpana titanium alloy, ka hopena i ka emi ʻana o ka pololei geometric o nā ʻāpana a me ka hana paʻakikī e hōʻemi loa i ko lākou ikaika luhi.

ʻO ka elasticity o nā alloys titanium hiki ke pōmaikaʻi no ka hana ʻāpana, akā i ka wā o ka ʻoki ʻana, ʻo ka deformation elastic o ka mea hana he kumu nui o ka haʻalulu. ʻO ke kaomi ʻoki ʻana e neʻe aku ka mea hana "elastic" mai ka mea paahana a paʻa i ʻoi aku ka nui o ka paio ma waena o ka mea hana a me ka mea hana ma mua o ka hana ʻoki. ʻO ke kaʻina hana friction e hoʻoulu i ka wela, e hoʻonui ana i ka pilikia o ka conductivity thermal maikaʻi ʻole o nā alloys titanium.

ʻOi aku ka koʻikoʻi o kēia pilikia i ka hana ʻana i nā ʻāpana ʻāpana lahilahi a i ʻole ke ʻano apo i hiki ke hoʻololi ʻia. ʻAʻole ia he hana maʻalahi ka mīkini ʻana i nā ʻāpana titanium alloy me ka paia i ka pololei o ke ana i manaʻo ʻia. No ka mea, i ka wā e hoʻokuʻu ʻia ai ka mea hana e ka mea hana, ua ʻoi aku ka deformation kūloko o ka pā lahilahi ma mua o ka elastic range a me ka deformation plastic, a piʻi nui ka ikaika a me ka paʻakikī o ka ʻokiʻoki. I kēia manawa, ʻoi aku ka kiʻekiʻe o ka mīkini ma ka wikiwiki o ka ʻoki ʻana i hoʻoholo ʻia ma mua, a ʻoi aku ka hopena o ka ʻaʻahu ʻana i nā mea hana ʻoi.

ʻO "Hot" ka "culprit" i paʻakikī ke hana i nā alloys titanium!

2. ʻIke ʻenehana noka mīkini cnc titanium

Ma ke kumu o ka hoʻomaopopo ʻana i ke ʻano hana o ka titanium alloys a me ka hoʻohui ʻana i ka ʻike i hala, ʻo ka ʻike nui o ka ʻike no ka hana ʻana i nā alloys titanium penei:

(1) Hoʻohana ʻia nā mea hoʻokomo me ka geometry maikaʻi e hōʻemi i ka ikaika ʻoki, ʻoki i ka wela a me ka deformation o ka mea hana.

(2) E mālama i ka hānai mau e pale i ka paʻakikī o ka mea hana. Pono ka mea hana ma ke ʻano hānai i ka wā o ka ʻoki ʻana, a ʻo ka nui o ka ʻoki radial ae he 30% o ka radius i ka wā wili.

(3) Hoʻohana ʻia ka wai ʻoki kiʻekiʻe a me ke kahe nui e hōʻoia i ka paʻa ʻana o ka wela o ke kaʻina hana mīkini a pale i ka degeneration ʻili o ka mea hana a me ka pōʻino o ka mea hana ma muli o ka wela nui.

(4) E hoʻopaʻa i ka ʻaoʻao o ka ʻaoʻao ʻoi, ʻo nā mea hana blunt ke kumu o ke kūkulu ʻana a me ka ʻaʻahu ʻana o ka wela, hiki ke maʻalahi i ka hemahema o ka mea hana.

(5) ʻO ka mīkini i loko o ke kūlana palupalu o ka titanium alloy e like me ka hiki, no ka mea, lilo ka mea i mea paʻakikī i ka mīkini ma hope o ka paʻakikī, a hoʻonui ka mālama wela i ka ikaika o ka mea a hoʻonui i ka lole o ka mea hoʻokomo.

(6) E hoʻohana i ka radius ihu nui a i ʻole chamfer e ʻoki i ka mea hiki i ka ʻoki ʻoki. Hoʻemi kēia i ka ikaika ʻoki a me ka wela i kēlā me kēia wahi a pale i ka haki kūloko. I ka wili ʻana i nā alloys titanium, ma waena o nā ʻāpana ʻokiʻoki, ʻoi aku ka ikaika o ka wikiwiki o ka ʻoki ʻana i ke ola mea hana vc, a ukali ʻia e ka radial engagement (milling depth) ae.

3. E hoʻomaka me ka pahi e hoʻoponopono i ka pilikia hana titanium

ʻO ka ʻaʻahu o ka insert groove i ka wā o ka hana ʻana i nā alloys titanium ʻo ia ka lole kūloko o ke kua a me mua i ke kuhikuhi o ka hohonu o ka ʻokiʻoki, i hana pinepine ʻia e ka papa paʻakikī i waiho ʻia e ka hana mua. ʻO ka hopena kemika a me ka hoʻopuehu ʻana o ka mea hana a me ka mea hana ma kahi mahana hana ʻoi aku ma mua o 800 °C kekahi o nā kumu no ka hoʻokumu ʻana i ke kapa komo. No ka mea, i ka wā o ka mīkini hana, hōʻuluʻulu ʻia nā molekala titanium o ka mea hana i mua o ka maka a "welded" i ka ʻaoʻao o ka lau ma lalo o ke kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe, e hana ana i kahi kihi i kūkulu ʻia. Ke ʻili ka lihi i kūkulu ʻia i ka ʻoki ʻoki, lawe ia i ka uhi carbide o ka mea hoʻokomo, no laila pono ka mīkini titanium i nā mea hoʻokomo kūikawā a me nā geometries.machining precision maʻamau

4. ʻO ke ʻano mea hana kūpono no ka mīkini titanium

ʻO ka manaʻo o ka hana ʻana o ka titanium alloy he wela, a ʻo ka nui o ka wai ʻokiʻoki kiʻekiʻe e pono e hoʻopuʻi ʻia ma ka ʻoki ʻoki i ka manawa a me ka pololei e wehe koke i ka wela. Aia nā hoʻonohonoho kūʻokoʻa o nā mea ʻoki milling ma ka mākeke no ka mīkini ʻana i ka titanium.