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Ke hilinaʻi lōʻihi nei i nā mea ʻenehana carbon-fiber thermoset no ka hana ʻana i nā ʻāpana hoʻohuihui ikaika loa no ka mokulele, ua hoʻopili ʻia nā aerospace OEM i kahi papa ʻē aʻe o nā mea carbon-fiber e like me ka holomua ʻana o ka ʻenehana e hoʻohiki i ka hana ʻana i nā ʻāpana non-thermoset hou ma ke kiʻekiʻe, haʻahaʻa kumu kūʻai. kaumaha māmā.

ʻOiai ʻo ka thermoplastic carbon-fiber composite material "he lōʻihi loa ia," i kēia manawa wale nō i hiki i nā mea hana aerospace ke noʻonoʻo i kā lākou hoʻohana nui ʻana i ka hana ʻana i nā ʻāpana mokulele, me nā ʻāpana kumu mua, wahi a Stephane Dion, vp engineering ma Collins Aerospace's Advanced Structures unit.

Hiki ke hāʻawi ʻia nā mea hoʻohui carbon-fiber Thermoplastic i nā aerospace OEM i nā mea maikaʻi loa ma mua o nā composites thermoset, akā a hiki i kēia manawa ʻaʻole hiki i nā mea hana ke hana i nā ʻāpana o nā composites thermoplastic ma nā kumukūʻai kiʻekiʻe a me ke kumu kūʻai haʻahaʻa, wahi āna.

I nā makahiki ʻelima i hala iho nei, ua hoʻomaka nā OEM e nānā ma mua o ka hana ʻana i nā ʻāpana mai nā mea thermoset e like me ke ʻano o ka ʻepekema hana hana ʻana o ka carbon fiber composite, e hoʻohana mua i ka resin infusion a me ka resin transfer molding (RTM) e hana i nā ʻāpana mokulele, a laila. e hoʻohana i ka thermoplastic composites.

Ua hoʻolilo nui ʻo GKN Aerospace i ka hoʻomohala ʻana i kāna resin-infusion a me ka ʻenehana RTM no ka hana ʻana i nā mea hoʻolālā mokulele nui me ka uku a me nā uku kiʻekiʻe. Hana ʻo GKN i kēia manawa he 17 mika ka lōʻihi, hoʻokahi ʻāpana ʻēheu i hui pū ʻia me ka hoʻohana ʻana i ka hana infusion resin, e like me Max Brown, vp o ka ʻenehana no ka GKN Aerospace's Horizon 3 holomua-technologies initiative.

Ua hoʻokomo pū ʻia nā hoʻopukapuka hoʻopukapuka koʻikoʻi o OEM i nā makahiki i hala iho nei i ka hoʻolimalima ʻana i ka hoʻomohala ʻana i nā hiki ke ʻae i ka hana nui o nā ʻāpana thermoplastic, e like me Dion.

ʻO ka ʻokoʻa nui loa ma waena o nā mea thermoset a me nā mea thermoplastic aia i ka ʻoiaʻiʻo e mālama ʻia nā mea thermoset i loko o kahi waihona anu ma mua o ka hana ʻia ʻana i mau ʻāpana, a i ka wā i hana ʻia, pono e hoʻōla ʻia kahi ʻāpana thermoset no nā hola he nui i loko o kahi autoclave. Pono nā kaʻina hana i ka ikehu a me ka manawa, a no laila e mau ke kiʻekiʻe o nā kumukūʻai hana o nā ʻāpana thermoset.

Hoʻololi ka hoʻōla ʻana i ke ʻano molekala o ka thermoset composite me ka hiki ʻole ke hoʻololi ʻia, e hāʻawi ana i ka ikaika o ka ʻāpana. Eia nō naʻe, i kēia manawa o ka hoʻomohala ʻenehana, hoʻolilo ka curing i ka mea i loko o ka ʻāpana i kūpono ʻole no ka hoʻohana hou ʻana i kahi ʻāpana kumu mua.

Eia nō naʻe, ʻaʻole pono nā mea thermoplastic i ka mālama anuanu a i ʻole ka kuke ʻana ke hana ʻia i ʻāpana, e like me Dion. Hiki iā lākou ke hoʻopaʻa ʻia i ke ʻano hope loa o kahi ʻāpana maʻalahi - ʻo kēlā me kēia bracket no nā papa fuselage i ka Airbus A350 he ʻāpana thermoplastic composite - a i ʻole i loko o kahi pae waena o kahi mea paʻakikī.

Hiki ke wili pū ʻia nā mea Thermoplastic i nā ʻano like ʻole, e ʻae ana i nā ʻāpana paʻakikī a me ke ʻano nui e hana ʻia mai nā sub-structure maʻalahi. I kēia lā, hoʻohana nui ʻia ka welding induction, ka mea e ʻae wale i nā ʻāpana palahalaha, mau-mānoanoa e hana ʻia mai nā ʻāpana, e like me Dion. Eia nō naʻe, ke hoʻomohala nei ʻo Collins i nā ʻenehana wiliwī a me friction no ka hoʻohui ʻana i nā ʻāpana thermoplastic, ka mea i hōʻoia mua ʻia e manaʻo ʻia e hiki iā ia ke hana i "nā hale paʻakikī maoli," wahi āna.

ʻO ka hiki ke hoʻohui pū i nā mea thermoplastic e hana i nā hale paʻakikī e hiki ai i nā mea hana ke hoʻopau i nā wili metala, nā mea hoʻopaʻa, a me nā hinges e koi ʻia e nā ʻāpana thermoset no ka hoʻohui ʻana a me ka pelu ʻana, a laila e hana ana i ka pōmaikaʻi hoʻemi kaumaha ma kahi o 10 pakeneka, ʻōlelo ʻo Brown.

Eia nō naʻe, ʻoi aku ka maikaʻi o ka hoʻopaʻa ʻana o ka thermoplastic composites i nā metala ma mua o nā composites thermoset, e like me kā Brown. ʻOiai ke manaʻo nei ʻo R&D ʻoihana i ka hoʻomohala ʻana i nā noi kūpono no kēlā waiwai thermoplastic e noho mau ana "ma kahi pae mākaukau ʻenehana mua," hiki paha iā ia ke ʻae i nā mea ʻenehana aerospace e hoʻolālā i nā ʻāpana i loaʻa i nā hale hoʻohui thermoplastic-and-metal hybrid.

Hiki i kekahi palapala noi, no ka laʻana, he ʻāpana hoʻokahi, ka noho kaʻa kaʻa mokulele māmā i loaʻa nā kaʻa kaʻa kaʻa a pau e pono ai no ka interface i hoʻohana ʻia e ka mea holo e koho a hoʻokele i kāna mau koho leʻaleʻa lele, kukui noho, peʻahi poʻo. , hoʻomoe noho hoʻomalu uila, opacity malu puka aniani, a me nā hana ʻē aʻe.

ʻAʻole like me nā mea thermoset, pono e ho'ōla e hana i ka ʻoʻoleʻa, ka ikaika, a me ke ʻano i koi ʻia mai nā ʻāpana i hana ʻia ai lākou, ʻaʻole loli nā ʻano molekala o nā mea hoʻohui thermoplastic i ka wā i hana ʻia i mau ʻāpana, e like me Dion.

ʻO ka hopena, ʻoi aku ka paʻakikī o nā mea thermoplastic i ka hopena ma mua o nā mea thermoset ʻoiai e hāʻawi like ana, inā ʻaʻole ikaika, paʻakikī a me ka ikaika. "No laila hiki iā ʻoe ke hoʻolālā i [nā ʻāpana] i nā anana ʻoi aku ka lahilahi," wahi a Dion, ʻo ia hoʻi, ʻoi aku ka liʻiliʻi o nā ʻāpana thermoplastic ma mua o nā ʻāpana thermoset a lākou e hoʻololi ai, ʻoiai ʻaʻole nā ​​​​mea hoʻemi kaumaha hou i loaʻa mai i ka ʻoiaʻiʻo ʻaʻole pono nā ʻāpana thermoplastic i nā wili metala a i ʻole nā ​​mea hoʻopaʻa. .

Pono e hōʻoia ka hana hou ʻana i nā ʻāpana thermoplastic i kahi kaʻina hana maʻalahi ma mua o ka hana hou ʻana i nā ʻāpana thermoset. Ma ke ʻano o ka ʻenehana i kēia manawa (a no kekahi manawa e hiki mai ana), ʻo nā loli hiki ʻole ke hoʻololi ʻia i ke ʻano molecular i hana ʻia e ka mālama ʻana i nā mea thermoset e pale ai i ka hoʻohana ʻana i nā mea hana hou e hana i nā ʻāpana hou o ka ikaika like.

ʻO ka hana hou ʻana i nā ʻāpana thermoset e pili ana i ka wili ʻana i nā fiber carbon i loko o ka mea i nā lōʻihi liʻiliʻi a me ka puhi ʻana i ka hui fiber-a-resin ma mua o ka hana hou ʻana. ʻOi aku ka nāwaliwali o ka mea i loaʻa no ka hoʻoponopono hou ʻana ma mua o ka mea thermoset kahi i hana ʻia ai ka ʻāpana i hana hou ʻia, no laila, ʻo ka hana hou ʻana i nā ʻāpana thermoset i mau mea hou e hoʻohuli pinepine ai i "kahi hale lua i ke kula kiʻekiʻe," wahi a Brown.

Ma ka ʻaoʻao ʻē aʻe, no ka mea ʻaʻole loli nā ʻāpana molekala o nā ʻāpana thermoplastic i nā kaʻina hana-hana a me nā ʻāpana-hui ʻana, hiki ke hoʻoheheʻe ʻia lākou i loko o ka wai wai a hana hou i nā ʻāpana ikaika e like me nā kumu mua, e like me Dion.

Hiki i nā mea hoʻolālā mokulele ke koho mai kahi koho ākea o nā mea thermoplastic like ʻole i loaʻa e koho mai i ka hoʻolālā ʻana a me ka hana ʻana i nā ʻāpana. "He ʻano nui o nā resins" i loaʻa i loko kahi e hiki ai ke hoʻokomo ʻia nā filaments carbon fiber hoʻokahi a i ʻole nā ​​mea ulana ʻelua, e hana ana i nā waiwai waiwai like ʻole, wahi a Dion. "ʻO nā resins hoihoi loa, ʻo ia nā resins haʻahaʻa hoʻoheheʻe," e hoʻoheheʻe ʻia i nā mahana haʻahaʻa haʻahaʻa a no laila hiki ke hana ʻia a hana ʻia i nā wela haʻahaʻa.

Hāʻawi nā ʻano like ʻole o ka thermoplastics i nā waiwai ʻoʻoleʻa like ʻole (kiʻekiʻe, waena, a haʻahaʻa) a me ka maikaʻi holoʻokoʻa, e like me Dion. ʻO ke kumu kūʻai o nā resins kiʻekiʻe loa, a ʻo ka hiki ke kūʻai aku i ka kuʻekuʻe Achilles no nā thermoplastics i hoʻohālikelike ʻia me nā mea thermoset. ʻO ka maʻamau, ʻoi aku ka nui o ke kumukūʻai ma mua o nā thermosets, a pono e noʻonoʻo nā mea hana mokulele i kēlā ʻoiaʻiʻo i kā lākou kumukūʻai hoʻolālā waiwai, wahi a Brown.

ʻO kekahi hapa no ia kumu, e hoʻomau ka GKN Aerospace a me nā mea ʻē aʻe i ka nānā nui ʻana i nā mea thermoset i ka wā e hana ana i nā ʻāpana kūkulu nui no ka mokulele. Ua hoʻohana nui lākou i nā mea thermoplastic i ka hana ʻana i nā ʻāpana liʻiliʻi e like me nā empennages, rudders, a me nā mea hao. ʻAʻole naʻe, i ka wā e lilo ai ka nui o ka nui a me ke kumu kūʻai haʻahaʻa o nā ʻāpana thermoplastic māmā, e hoʻohana nui nā mea hana iā lākou - ʻoi aku hoʻi i ka ulu ʻana o ka mākeke eVTOL UAM, wahi a Dion.

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