Uinjiniya Wokhazikika Kwambiri wa Autocross Suspension Uprights: Advanced 5-Axis CNC Machining ndi DFM Optimization

Mu malo achiwawa a masewera a njinga zamoto omwe sali pamsewu, monga FIA European Autocross Championship, zida zoyimitsira zimakhala ndi katundu woopsa komanso wosayembekezereka. Pakati pa izi, kuyimitsira koyima (kapena chowongolera) kumayendetsedwa ndi ma tensor amphamvu ozungulira mbali zosiyanasiyana—kuphatikizapo katundu wozungulira wothamanga kwambiri komanso kugwedezeka mwadzidzidzi kwa 3G vertical landing. Zida zokhazikika nthawi zambiri zimalephera chifukwa cha kupotoka kwa kapangidwe kake kapena ming'alu yotopa yomwe imachitika chifukwa cha kuchuluka kwa kupsinjika kwachitsulo.

Kuti apulumuke pamavuto amenewa, magulu othamanga amafunika zida zoyimitsira zolondola kwambiri zopangidwa ndi ma billet ang'onoang'ono olimba ngati Aluminiyamu 7075-T6Mwa kusintha njira zachikhalidwe zopangira zinthu pogwiritsa ntchito makina olondola a CNC a 5-axis, ma porosity amachotsedwa, ndipo kukhazikika kwa magawo kumatsimikizika. Buku lotsogolerali limafotokoza bwino kapangidwe ka uinjiniya, njira zopangira zinthu zambiri, komanso kutsatira bwino kwambiri njira zoyendetsera zinthu zomwe zimachitika ku CREATINGTEC kuti apange zida zoyimitsira zokonzeka.

Pamene chitsanzo cha CAD chosaphika chifika kuti chikonzedwe, chimawunikidwa mosamala ndi gulu lathu la mainjiniya, komwe membala aliyense ali ndi zaka zosachepera 5 zaukadaulo wopanga makina komanso luso lopanga zinthu m'maofesi.

Kusanthula kwa Finite Element (FEA) ndi Kukonzanso kwa Structural Geometry

Pogwiritsa ntchito pulogalamu yapamwamba yoyeserera ya CAE ya pakompyuta, mainjiniya athu amagwiritsa ntchito mikhalidwe ya malire yomwe imafanana ndi mphamvu yayikulu yomwe imachitika panthawi ya mpikisano wa off-road. Mwa kuwunika momwe Von Mises imagawidwira, mainjiniya amapatula "malo akufa" - madera omwe alibe nkhawa kwambiri komwe zinthu zochulukirapo zimapangitsa kuti magalimoto azikhala ndi kulemera kwa magalimoto.

Kudzera mu kukonza bwino kwa topology, ma voliyumu olimba komanso okhuthala amachotsedwa ndikusinthidwa kukhala ma profiles a I-beam okonzedwa bwino komanso amphamvu kwambiri. Kuchotsa zinthu mwanzeru kumeneku kumachotsa mpaka 25% ya unyinji wosaphika wa gawolo ndikusiya njira zolimba komanso zonyamula katundu zomwe zili bwino.

Kuchepetsa Kutopa Kulephera Pogwiritsa Ntchito Radius Optimization

Makona akuthwa amkati ndiye zinthu zazikulu zomwe zimapangitsa kuti kutopa kulephereke panjira zadothi. Gulu lathu la mainjiniya limagwiritsa ntchito njira yokhwima yopangira zinthu (DFM) kuti athetse zoopsa izi:

• Kukulitsa Fillet Sweep: Makona amkati oletsa amakulitsidwa kukhala zidutswa zazikulu zopyapyala.
• Kufananiza Mzere wa Chida: Ma radii onse amkati amakonzedwa bwino mpaka kufika pa radius yochepera R3 mm, zomwe zimagwirizana ndi mawonekedwe a mphero ya carbide yogwira ntchito bwino kwambiri kuti apewe kupsinjika.

Kusintha kwa Chida Chochotsera Zida ndi Kuchepetsa Mtengo

Gulu lathu la mainjiniya limasintha m'lifupi mwa mabowo kuti zitsimikizire kuti odulira odulira okhazikika komanso olimba kwambiri amatha kupeza mosavuta zinthuzo. Kusintha kumeneku kumalepheretsa kupotoka kwa zida, kumasunga kufanana kwa geometric pansi pa mabowo, komanso kumachepetsa mwachindunji ndalama zoyendetsera makina.

Sitima yoyimirira yochokera pamsewu ndi yovuta kwambiri, ndipo imagwira ntchito ngati malo olumikizira zinthu zofunika kwambiri. Kuti makinawa azitha kulumikiza zinthuzi molondola, njira zapadera zogwirira ntchito zimagwiritsidwa ntchito:

Kupukuta Moyenera Kwambiri (HEM) kwa Kupukuta

Kuchotsa koyamba kwa zinthu kumagwiritsa ntchito njira za HEM. Mosiyana ndi malo otsetsereka achikhalidwe, HEM imasunga ngodya yokhazikika, yolamulidwa, ndikukulitsa kuzama kwa kudula pogwiritsa ntchito utali wonse wa chitoliro chodulira. Izi zimaletsa kutentha komwe kumachitika pamalopo ndikusunga umphumphu wa kapangidwe ka chinthucho.

Kuwongolera Kusokonekera kwa Mizere Yozungulira Yosiyanasiyana

Kugwiritsa ntchito makina apamwamba a CNC a 5-axis kumatithandiza kuyendetsa bwino ma cut-finish cut okhazikika m'makona ophatikizika mu dongosolo limodzi. Kuzungulira ndi kupendeketsa gawolo nthawi imodzi kumachotsa kufunikira kogwiritsa ntchito manja pa benchi, kupewa zolakwika za anthu.

Kuti titsimikizire kuti mbali ndi mbali zonse zimagwirizana, kuyimitsidwa kulikonse koyima kumakonzedwa motsatira ndondomeko yokhwima komanso yolembedwa ya masitepe asanu ndi limodzi mkati mwa malo athu olondola a 2,568 m²:

Gawo 1-3: Kukonzekera & Kukhazikika

Kupanga kumayamba ndi Aluminium 7075-T6 yokwera mumlengalenga. Timatsimikiza mphamvu ya chemistry ndi mphamvu ya kukoka (500 MPa). Pambuyo pokonza kwambiri, ziwalo zimadutsamo. Mpumulo wa Kupsinjika kwa Kutentha mu uvuni wolamulidwa kuti akonze matrix ya zinthuzo, kuteteza kupindika kwa microscopic musanayambe njira zomaliza zolondola.

Gawo 4: Kukonza Machining Yokwanira ya 5-Axis Precision Finish

Choyimirira chokhazikika chimasamutsidwira ku malo athu ozungulira 5 nthawi imodzi. Pogwiritsa ntchito mphero zolimba kwambiri, timapeza mawonekedwe achilengedwe komanso Kusasangalatsa Kwambiri mkati mwa chivindikiro chapakati chonyamula mawilo, chokhala ndi kulekerera kokhwima kwa +0.005 mm mpaka +0.015 mm.

Gawo 5: Advanced CMM Metrology

Mu labu yathu yoyang'aniridwa ndi nyengo (20°C), Makina Oyezera a 3D Coordinate (CMM) amafufuza mfundo 48 zofotokozera. Izi zimapanga mapu osiyanitsa nthawi yeniyeni kuti zitsimikizire kuti makinawo ali bwino.

Gawo 6: Chithandizo Chochepetsa Kutopa Pamwamba

• Kutulutsa Mphuno: Amayambitsa kupsinjika kotsalira kuti apewe ming'alu yaying'ono.
• Mtundu Wachitatu Wothira Mafuta Olimba: Chophimba cha ceramic cha 50 um choteteza dzimbiri ndi kuwonongeka kwa miyala.

Mwa kuphatikiza nzeru zaukadaulo za DFM ndi luso la CNC la multi-axis limodzi komanso njira zowongolera khalidwe mkati mwa msonkhano wathu wolondola, CREATINGTEC imasintha malingaliro aukadaulo osaphika kukhala zida zoyimitsira zolimba komanso zopepuka zopangidwa kuti zigonjetse mabwalo ovuta kwambiri padziko lonse lapansi.