nkhani

Podalira kwa nthawi yayitali zida za thermoset carbon-fiber popanga zida zamphamvu kwambiri zopangira ndege, ma OEM amlengalenga tsopano akukumbatira gulu lina la zida za carbon-fiber monga kupita patsogolo kwaukadaulo kulonjeza kupanga makina atsopano omwe si a thermoset pamtengo wokwera, mtengo wotsika, komanso kulemera kopepuka.

Ngakhale zida zophatikizika za thermoplastic carbon-fiber "zakhalapo kwanthawi yayitali," posachedwapa opanga zakuthambo angaganizire momwe amagwiritsidwira ntchito popanga zida zandege, kuphatikiza zida zazikulu zamapangidwe, atero Stephane Dion, vp engineering ku Collins Aerospace's Advanced Structures unit.

Ma composites a Thermoplastic carbon-fiber atha kupatsa ma OEMs oyendetsa ndege zabwino zingapo kuposa ma thermoset composites, koma mpaka posachedwa opanga sanathe kupanga magawo azinthu zopangidwa ndi thermoplastic pamitengo yayikulu komanso pamtengo wotsika, adatero.

M'zaka zisanu zapitazi, OEMs ayamba kuyang'ana kupyola kupanga mbali ku zipangizo thermoset monga dziko la carbon-fiber composite gawo kupanga sayansi anayamba, ntchito kulowetsedwa utomoni ndi utomoni kusamutsa akamaumba (RTM) njira kupanga mbali ndege, ndiyeno. kugwiritsa ntchito thermoplastic kompositi.

GKN Aerospace yaika ndalama zambiri popanga utomoni wothira utomoni ndi ukadaulo wa RTM popanga zida zazikulu zamapangidwe andege mothekera komanso pamitengo yayikulu. GKN tsopano imapanga mapiko opangidwa ndi mapiko a 17-m'litali, ndi chidutswa chimodzi pogwiritsa ntchito kulowetsedwa kwa utomoni, malinga ndi Max Brown, vp waukadaulo wa GKN Aerospace's Horizon 3 advanced-technologies initiative.

Ma OEMs omwe amapanga zinthu zambiri zopanga zinthu zambiri m'zaka zingapo zapitazi aphatikizanso kuwononga ndalama pakukulitsa luso lolola kupanga zida zamafuta ambiri, malinga ndi Dion.

Kusiyana kodziwika kwambiri pakati pa zida za thermoset ndi thermoplastic kwagona kuti zida za thermoset ziyenera kusungidwa m'malo ozizira zisanapangidwe kukhala magawo, ndipo zikapangidwa, gawo la thermoset liyenera kuchiritsidwa kwa maola ambiri mu autoclave. Njirazi zimafuna mphamvu ndi nthawi yambiri, choncho ndalama zopangira zida za thermoset zimakhala zokwera kwambiri.

Kuchiritsa kumasintha mamolekyu a kaphatikizidwe ka thermoset kosasinthika, kumapatsa mbaliyo mphamvu yake. Komabe, pakadali pano chitukuko chaukadaulo, kuchiritsa kumapangitsanso kuti zinthu zomwe zili m'gawolo zikhale zosayenera kugwiritsidwanso ntchito m'chigawo choyambirira.

Komabe, zida za thermoplastic sizifuna kusungirako kuzizira kapena kuphika zikapangidwa kukhala magawo, malinga ndi Dion. Zitha kusindikizidwa mu mawonekedwe omaliza a gawo losavuta - bulaketi iliyonse ya fuselage mafelemu mu Airbus A350 ndi gawo la thermoplastic composite - kapena mu gawo lapakati la gawo lovuta kwambiri.

Zipangizo za thermoplastic zimatha kuwotcherera palimodzi m'njira zosiyanasiyana, kulola kuti magawo ovuta, owoneka bwino kwambiri apangidwe kuchokera kumagulu osavuta. Masiku ano kuwotcherera kwa induction kumagwiritsidwa ntchito makamaka, zomwe zimangolola kuti magawo athyathyathya, makulidwe osasunthika kuti apangidwe kuchokera ku tizigawo tating'ono, malinga ndi Dion. Komabe, Collins akupanga njira zowotcherera zonjenjemera komanso zowotcherera zolumikizana ndi zida za thermoplastic, zomwe zikadatsimikiziridwa kuti zikuyembekezeka kuti zitha kupanga "zomangamanga zapamwamba kwambiri," adatero.

Kutha kuwotcherera pamodzi zida za thermoplastic kupanga zomangira zovuta zimalola opanga kuti achotse zomangira zachitsulo, zomangira, ndi mahinji omwe amafunikira magawo a thermoset kuti alumikizane ndi kupindika, potero amapanga phindu lochepetsa kulemera pafupifupi 10 peresenti, akuyerekeza Brown.

Komabe, ma composites a thermoplastic amalumikizana bwino ndi zitsulo kuposa ma composites a thermoset, malinga ndi Brown. Ngakhale R&D yamakampani yomwe cholinga chake ndi kupanga zida zogwiritsira ntchito zida za thermoplastic zikadali "pamlingo wokonzekera ukadaulo wokhwima," zitha kuloleza mainjiniya apamlengalenga kupanga zida zomwe zimakhala ndi hybrid thermoplastic-and-metal integrated structures.

Ntchito imodzi yomwe ingatheke, mwachitsanzo, ikhoza kukhala mpando umodzi, wopepuka wokwera ndege wokhala ndi zitsulo zonse zoyendera zitsulo zomwe zimafunikira kuti wokwerayo azitha kusankha ndikuwongolera zosangalatsa zomwe angasangalale nazo, kuyatsa pampando, zofanizira zam'mwamba. , mipando yoyendetsedwa ndi makompyuta, kuwala kwa mawindo, ndi ntchito zina.

Mosiyana ndi zida za thermoset, zomwe zimafunikira kuchiritsa kuti zipangitse kuuma, mphamvu, ndi mawonekedwe ofunikira kuchokera kuzigawo zomwe zimapangidwira, ma cell azinthu zophatikizika za thermoplastic sizisintha akapangidwa kukhala magawo, malinga ndi Dion.

Zotsatira zake, zida za thermoplastic ndizosaphwanyika kwambiri pakukhudzidwa kuposa zida za thermoset pomwe zimapereka mphamvu zofananira, ngati sizolimba, zamapangidwe. "Kuti mutha kupanga [zigawo] kukhala zoyezera zoonda kwambiri," atero Dion, kutanthauza kuti zigawo za thermoplastic zimalemera pang'ono poyerekeza ndi zida zilizonse zomwe zimasinthidwa, ngakhale kuchotserapo zochepetserako zoonda zomwe zimachitika chifukwa chazigawo za thermoplastic sizifuna zomangira zitsulo kapena zomangira. .

Kubwezeretsanso zigawo za thermoplastic kuyeneranso kukhala njira yosavuta kuposa kukonzanso zigawo za thermoset. Pazaka zamakono zamakono (komanso pakapita nthawi), kusintha kosasinthika kwa mamolekyu opangidwa ndi kuchiritsa zida za thermoset kumalepheretsa kugwiritsa ntchito zinthu zobwezerezedwanso kupanga magawo atsopano amphamvu yofanana.

Kubwezeretsanso mbali za thermoset kumaphatikizapo kugaya ulusi wa kaboni muzinthuzo kuti zikhale zazitali zing'onozing'ono ndikuwotcha chisakanizo cha fiber-ndi-resin musanachisewerenso. Zomwe zimapezedwa pokonzanso ndizochepa kwambiri poyerekeza ndi zida zomwe zidapangidwanso, motero kukonzanso zigawo za thermoset kukhala zatsopano nthawi zambiri kumasintha "chinyumba chachiwiri kukhala chapamwamba," adatero Brown.

Kumbali ina, chifukwa mamolekyu a magawo a thermoplastic sasintha m'magawo opanga ndi kuphatikizira magawo, amatha kusungunuka kukhala madzi ndikusinthidwanso kukhala magawo amphamvu monga oyambawo, malinga ndi Dion.

Okonza ndege amatha kusankha kuchokera pamitundu yosiyanasiyana ya zida za thermoplastic zomwe mungasankhe popanga ndi kupanga zida. "Ma resin ambiri" amapezeka momwe ma fiber fiber fiber okhala ndi mbali imodzi kapena zoluka ziwiri zimatha kuphatikizidwa, ndikupanga zinthu zosiyanasiyana, adatero Dion. "Ma resins osangalatsa kwambiri ndi ma resin otsika kwambiri," omwe amasungunuka pakatentha pang'ono ndipo amatha kuumbika ndikupangidwa potentha kwambiri.

Magulu osiyanasiyana a thermoplastics amaperekanso kuuma kosiyanasiyana (kwapamwamba, kwapakati, ndi kutsika) komanso mtundu wonse, malinga ndi Dion. Ma resins apamwamba kwambiri amawononga ndalama zambiri, ndipo kukwanitsa kumayimira chidendene cha Achilles cha thermoplastics poyerekeza ndi zida za thermoset. Nthawi zambiri, amawononga ndalama zambiri kuposa ma thermosets, ndipo opanga ndege ayenera kuganizira izi powerengera mtengo / phindu lawo, adatero Brown.

Pachifukwachi, GKN Azamlengalenga ndi ena adzapitiriza kuganizira kwambiri zipangizo thermoset popanga zigawo zikuluzikulu structural ndege. Amagwiritsa ntchito kale zida za thermoplastic popanga tinthu tating'onoting'ono monga empennages, ma rudders, ndi spoilers. Komabe, posachedwa, kupanga zida zopepuka komanso zotsika mtengo zokhala ndi zida zopepuka za thermoplastic, opanga azizigwiritsa ntchito kwambiri, makamaka pamsika womwe ukukulirakulira wa eVTOL UAM, adamaliza motero Dion.

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