No ke aha e hoʻohana ai i ka inconel 718 i ka hana ʻana i nā ʻāpana mokulele

No laila, i ka hoʻolālā optimization o ke kaʻina hana broaching, he mea nui ia e kahaki i kahi kiʻiona metallographic pono a me ka nui o ke ana tenon i hana ʻia e broaching. I kēia ʻatikala, ua hoʻohana mākou i ka nānā ʻana i nā microscope ʻōnohi a me ka nānā ʻana i ka microscopy electron e kālailai i ka hana metalagraphic o ka ʻilikai a me nā papa lalo o nā kahawai tenon o ka Inconel-718 kōkuhi oka a o nā turbine kinoea ʻenehana. ʻO ka nānā ʻana i ke aʻo ʻana i nā ʻano o nā kīnā i hoʻokumu ʻia e nā ʻumi broaching a me nā groove ma luna a me ka underlayer o ka huila. I ka manawa like, ua loaʻa ka noiʻi i ka nui o nā mea maka γ ", γ 'a me δ ma ka ʻili o ke alelo a me ke ana. Ke hoʻohana nei i ke kumu hoʻohālikelike a ke kumu DM no ka wānana i ke ola luhi o ka disk huila, ʻo ia pono e hoʻokomo i kēia mau palena ʻano nui o ka metala metala. I ke aʻo ʻana i ka hoʻonohonoho hoʻonohonoho, ua ʻike mākou i nā kīnā e like me nā ʻōpala a me nā ʻino. Ma hope iho, ua hoʻohālikelike mākou i nā palena (ʻano a me nā kinona) o kēia mau hemahema me nā kūlana hoʻolālā i hāʻawi ʻia e ka mea hana mīkini peahi uila. Eia kekahi, nā wahi i hoʻopili ʻia e ka broaching a me ka Hoʻohālikelike ʻana o nā mea kumu e hōʻike ana i ka hapa nui o nā ins hua i ʻike loli. Pili kēia mau hoʻololi i ka hanauna wela frictional i ka wā broaching. ʻO ka hope loa, ma ka hoʻohālikelike ʻana i ke kumu nā mea, ua hoʻohālikelike mākou i ka ulu ʻana o ka hana microstructure o ke ʻano metallurgical ma ka ʻili palapala. Ua aʻo ʻia nā hopena o nā loli.

ʻO ke kinikini Inconel-718 kahi ni Ni-Fe-Cr kiʻekiʻe i hoʻoheheʻe ʻia e ka International Nickel Corporation i nā makahiki 1950. ʻO kēia kahi paʻa paʻa paʻakikī e hiki ke hōʻike i ke kaumaha kiʻekiʻe a me ke kūpaʻa ikaika i ka luhi a me ke kolo. Ma muli o ke kūpaʻa kūpikipiki kiʻekiʻe a me ka ikaika kiʻekiʻe i nā wahi wela kiʻekiʻe, hoʻohana ākea ʻo Inconel-718 i ka ʻoihana aerospace, ma ke ʻano he kumuwaiwai no nā huila engine turbine engine. 'Lelo maʻamau, hoʻohui ka huila a me ka pahi e kahi tenonʻano lāʻau lōʻihi, a ʻo ke kaʻina hana broaching ke kī o ka mīkini ʻana i ka slot tenon ʻano lāʻau. Ma ka laulaha, ʻo ka hopohopo o kēlā me kēia ka hopena o ka mahana a me ka hoʻoluhi i ka loli o ka nui o ka palaoa i ka wā o ka deformation wela. Hoʻopili pū ʻo Broaching i nā loli i ke ʻano metallographic o ka ʻili a me ka papakū o ka huila, kahi e hoʻopili ai i ka pale luhi o ka huila. Eia nō naʻe, i loko o nā puke, aia kekahi mau pepa e pili ana i ka ʻoki ʻana i nā huila oka Inconel-718 Qualitative a me ka helu helu o nā loli i ka microstructure.

ʻO ke kumu o kēia noi ʻana e wehewehe a helu i ka hana metallographic o ka ʻilikai a me ka papakū o ka pae lōʻihi dendritic o ka huila hoʻohui Inconel-718. I ke kikoʻī, ua hoʻopaʻa ʻia ka wehewehe a me ka hōʻuluʻulu helu o nā hemahema i hana ʻia e ke kaʻina hana broaching ma ka ʻili a me ka papa o lalo o ka disk huila, a ua aʻo ʻia ka nui o ka palaoa a me nā ʻano huapalaoa o ka wahi mīkini.

Nā hana hoʻokolohua

Ua kāohi mākou i kahi ʻāpana o ka huila alcon Inconel-718 no ka noiʻi ʻana (Kii 1). E like me ka mea i hōʻike ʻia i ke Kiʻi 2, hoʻohana mākou i ke ʻano o EDM e lawe i nā mea metala metala mai ka mua, waena a me ka huelo o ka slot waena tenon.

I mea e hoʻokō ai i nā pono o ka loiloi metallographic, ma hope o ka hoʻopaʻa ʻia ʻana o ka hāpana, e hele ia i loko o kahi kaʻina automated o ka wili ʻana a me ka anai ʻana. Ke pae ʻana i ke one, 320, 400, 600 a me 1200 mau ʻiliahi e hoʻohana ʻia. Ma hope o ka hoʻonani ʻana, e hoʻonani ʻia ka hāpana ma ka huluhulu MD me ka 1 μm daimana kau ʻia ma ke ʻano he anai wai no 2 mau minuke. I mea e hiki ai ke nānā i nā palena palaoa me kahi microscope electron scanning (SEM), e kahakaha ʻia ka hāpana i kahi hopena waikawa oxalic ma ka uila o 4V no 20-40 kekona. I mea e hopu ai i nā hiʻohiʻona o ka γ 'a me ka γ' me ka wehewehe kiʻekiʻe, pono e hoʻopaʻa ʻia ka hāpana i kahi hopena 10V uila (8ml H2SO4 a me 100ml H2O) no 20 kekona, a me kahi microscope electron scanning i hoʻolako ʻia me kahi pū emission scanning (FEG).

Ke kālailai ʻana i nā hemahema me SEM, pono e hoʻopili ʻia ka hāpana i kahi hopena 3V voltage (5g CuCl2, 100ml HCL a me 100ml ethanol) no 10 kekona. E hoʻohana i ke ʻano ʻokoʻa kiʻekiʻe e kiʻi i ka nui o ka palaoa. E hoʻohana i ka ASTM e loaʻa ai ka hapa nui o nā ʻano ʻano like ʻole: manaʻo ʻo E562 ua like ka ʻāpana hapa me ka hapa nui o ka nui. Ua ana ʻia ka nui o nā laha like ʻole me ka polokalamu loiloi kiʻi Clemex. I mea e loaʻa ai kahi hopena helu ʻelele, ma kahi o 6 mau kiʻina metallographic pono e hoʻohana ai e hoʻoholo i ka nui a me nā ʻano o nā ʻano hua.

Ma ka liʻiliʻi he 5 mau laʻana o kēlā me kēia laʻana e lawe ʻia no Rockwell He ana paʻakikī, a laila e helu ʻia kahi waiwai awelika no kēlā me kēia laʻana. I nā hoʻokolohua, ʻoi aku ka lōʻihi ma waena o nā ʻōpala ma mua o 5 mau manawa ke anawaena o nā kaha. I mea e hoʻohālikelike ai me nā waiwai paʻakikī i nā puke, Rockwell A pono e hoʻololi i nā kumukūʻai paʻakikī i Vickers paʻakikī, ASTM: E140.

Nānā Hewa

I kēia noi ʻana, ua kālailai ʻia me ka ʻōnaehana nā hemahema ma ka lālani waena o ke alelo a me ke ana. ʻOi aku ka pololei, ua nānā a helu mākou i ka hoʻomaka, waena a me ka hopena o ka broaching. Hōʻike ka papa 1 i nā ʻano ʻokoʻa o ke kīnā i loko o nā ʻūlū dendritic lonikū o nā wili huina Inconel-718 i hoʻopili ʻia. Pono e ʻōlelo ʻia ma nā laʻana noiʻi, ʻaʻole mākou i nānā i nā kīnā e like me ka papa keʻokeʻo, ka papa ʻole o ka menstrual, biomass lua, nā wahi ʻeleʻele, ka hoʻopaʻa hou ʻana, nā mea haole, a nā māwae

Hōʻike nā kiʻi 3 a 6 i kekahi o nā kīnā i nānā ʻia. Hōʻike ka helu 3 i ka ʻaʻai ʻana, e like me nā puka liʻiliʻi i ʻike ʻia ma ka ʻili mīkini. ʻOiaʻiʻo, ʻo ka wili ʻana ka maʻi kīnā maʻamau. Hoʻomaopopo ka poʻe āpau i ka hoʻohui paʻa ʻana o ka oka Inconel-718 i ka mīkini ma muli o ka paʻakikī o ka mīkini i ka wā o ka hana. Nā mea pono hana like ʻole a me nā kūlana broaching, e hoʻonui ka ʻili o ka oka a i ka lole ʻaoʻao, ka pitting a me ke kuʻi ʻana. Eia nō naʻe, i nā laʻana noiʻi āpau, ua ʻoi aku ka liʻiliʻi o ka hohonu o ka ʻaʻai o ka erosion ma mua o ka hoʻolālā. Pēlā nō, e like me ka mea i hōʻike ʻia i ke kiʻi 4, hōʻike ʻia ke kiʻi o ka papa wili. I kēia papa (7 μm ākea), he hoʻonohonoho kūikawā kā ka ʻδ pae. ʻIke maʻalahi ʻia kēia hanana ma ka piko o ke alelo a me ke ana, e pili ana paha i ke koʻikoʻi i hoʻokumu ʻia e ka broaching ma kēia wahi.

ʻO ka ʻāpana ʻoi loa o ke alelo a me ke kuʻi (Kiʻi 5) i ka hoʻomaka a me ka hopena o ka broaching. Pēlā nō, e like me ka mea i hōʻike ʻia ma ke Kii 6, aia kekahi kīnā i kapa ʻia he hapa kīnā ʻole e hoʻokaʻawale ʻia, e like me ka haki o nā mea, akā ʻaʻole i hāʻule i luna o ka huila. Aia kēia hanana i nā laʻana āpau. ʻO kēlā mau kīnā he lōʻihi ka lōʻihi o 25 μm, a ʻokoʻa ko lākou ʻano (ka nui a me ka morphology). Loaʻa kēia hemahema mai ka maikaʻi o ka broaching, a me kona hopena i ke ola o ka roulette e hoʻomau e aʻo hou ʻia.

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