Akatswiri akamatchula valavu yopondereza ya makina a hydraulic omwe amagwira ntchito pa bar 420—kapena magulu okonza zinthu akamalowetsa nyumba ya silinda ya pisitoni pamalo opangira mafuta a m’mphepete mwa nyanja—samangofunika mbali zina. Iwo akusowa mafakitale mbali fakitale abwenzi omwe amawona kukhazikika kwa gawo ngati mgwirizano, kusasinthika kwazitsulo ngati pangano, ndi nthawi yoperekera ngati nthawi yomaliza.
Ichi ndichifukwa chake magawo ofunikira kwambiri - zida zama hydraulic, magalimoto opangira uinjiniya, zomangamanga zamafuta & gasi, komanso makina opangira mapampu apamwamba kwambiri - amatembenukira kwambiri kwa opanga omwe ali ndi kuphatikiza koyima, kuwongolera kwapadera kwa aloyi, komanso kulolerana zero pakuyenda kwa batch-to-batch. Osati zopezeka zonse zomwe zimatha kukhala ± 0.015 mm pampando wa nozzle wa cobalt-nickel. Osati shopu iliyonse ya CNC yomwe imatha makina a AMS 5387 popanda kusokoneza pang'ono kapena kusokoneza madera okhudzidwa ndi kutentha. Ndipo ocheperako amaphatikiza mphamvu zonse ziwiri pansi padenga limodzi logwirizana ndi ISO-posunga kutsatiridwa kwazinthu zonse kuchokera ku T800 alloy ingot mpaka kumaliza wodzigudubuza wosakhazikika.
Chifukwa Chake Ukatswiri wa Alloy Siwosankha -Ndiwo Fyuluta Yoyamba
Cobalt-nickel superalloys ngati AMS 5387 ndi T800 sanasankhidwe kuti azikongoletsa. Amatchulidwa komwe kukana kukokoloka kwa nthaka, kukhazikika kwa kutentha pamwamba pa 650 ° C, ndi mphamvu zopitirira 1,100 MPa sizingakambirane. Koma kuuma kwawo (45-52 HRC as-cast) komanso kutsika kwamafuta kumawapangitsa kukhala osakhululuka pakukonza makina. Tawona makasitomala akutumiza zojambula pogwiritsa ntchito zida zokhazikika-ndikulandira magawo okhala ndi macheza, ma fractures a subsurface, kapena decarburization yomwe idalephera kuyesa kulowa mkati.
Kukonzekera sikulinso ma spindle othamanga. Ndi magawo odulidwa oyenerera kale, zida za carbide zokhala ndi zokutira za PVD TiAlN, kuwongolera kozizira kozizira pansi pa 12 ° C, ndikuwunika momwe kutentha kumayendera. Pamalo athu a Qingdao, ntchito iliyonse ya cobalt alloy imayamba ndikuwunikanso zitsulo - osati chemistry yokha, komanso kagawidwe ka kukula kwa tirigu ndi mbiri yakale yakuchiritsa kutentha. Timangotengera ma billets ovomerezeka a T800 okhala ndi malipoti oyesa mphero omwe angapezeke ku ASTM B572 ndi AMS 5719. Palibe kupatula.
Kuphatikiza Koyima Komwe Kumapereka Kukhazikika
Othandizira ambiri "oyimitsa" akutulutsa kapena kumaliza. Izi zimapanga mfundo zitatu zolephera: zosagwirizana monga-cast microstructure zimakhudza machinability; kusintha kwamphamvu pa nthawi ya kupsinjika maganizo; ndi kusinthasintha kwapamwamba kwa mavenda. Timayang'anira magawo onse anayi - kugulitsa / kuponya mchenga, makina a CNC amitundu yambiri (mpaka 5-axis munthawi imodzi), chithandizo cha kutentha (kuphatikiza yankho la annealing + kukalamba pa AMS 2750), ndi kumaliza ntchito pamwamba (electropolishing, kuwombera peening, zokutira za HVOF).
Izi ndizofunikira kwambiri pazinthu monga pompa maziko kapena ma roller a winch center shaft. Izi sizokwera mokhazikika - zimatengera kugwedezeka kwamphamvu, kutumiza torque pansi pa katundu wozungulira, komanso mawonekedwe okhala ndi zisindikizo zosunthika. Kupatuka kwa 0.03 mm pakukhala ndi kuzungulira kwa magazini? Izi zimafulumizitsa kuvala zisindikizo ndi 300% pamayesero am'munda omwe tidawatsata pa 17 oyendetsa zombo zaku North America. Mayendedwe athu ophatikizika amachotsa ma handoffs. Zambiri za CMM zochokera kuzinthu zoyipa zimadyedwa mwachindunji mu kapangidwe ka CNC. Njira zochizira kutentha zimalumikizidwa ndi manambala achinsinsi musanagaye komaliza. Palibe chomwe chimatayika pakumasulira - kapena paulendo.
Ubwino Womwe Unamangidwa, Osawunikiridwa
"Timayang'ana chilichonse" ndi chopanda tanthauzo popanda zipata zodziwika. Protocol yathu ili ndi maimidwe anayi olimba: (1) kutsimikizira kwazinthu zomwe zikubwera pogwiritsa ntchito OES spectrometry ndi kuyesa kwa ultrasonic; (2) kuyang'anitsitsa pambuyo pa makina ovuta pogwiritsa ntchito Zeiss CONTURA G2 CMM ndi Keyence VHX-7000 digito microscopy; (3) kutsimikizira kwamankhwala pambuyo pa kutentha kwa kuuma, kutuluka kwa tirigu, ndi kupsinjika kotsalira kudzera pa XRD; (4) kutsimikizira komaliza kogwira ntchito-kuphatikiza kuyesa kukakamiza mpaka 600 bar ndikuwunika kozungulira kwamisonkhano ya shaft.
Timasunga kutsatiridwa kwathunthu: nambala yochuluka, chipika chosungunula, curve yochizira kutentha, lipoti la CMM, ndi ID ya ogwiritsa ntchito zimayikidwa pagawo lililonse la QR-coded. Pamene OEM yaku Europe idafunikira kusanthula kwazomwe zidayambitsa vuto la kutopa kwanyumba, tidakoka mbiri yonse yopanga - kuphatikiza ma graph a spindle load kuchokera pakumaliza komaliza - mkati mwa mphindi 90. Kumeneko sikutsatira. Ndilo chidaliro chokhazikitsidwa pagawo lililonse.
Kupanga kodalirika kumayamba kalekale Chip choyamba chisanawuluke. Zimayamba ndikumvetsetsa chifukwa chomwe pulagi ya cobalt alloy imalephera muutumiki wa gasi wowawasa-osati chifukwa cha chemistry, koma chifukwa cha okosijeni wamkati mwa makina opangidwanso ndi makina. Zikutanthauza kudziwa kuti pampu yachitsulo yoponyera mchenga imafuna zomangira zosiyanasiyana zapanyanja ndi chipululu. Zimatanthawuza kuchitira ma callout a GD&T osati ngati zolemba, koma ngati cholinga chotanthauziridwa kukhala zowongolera.
Kwa mainjiniya omwe amapeza zida zachitsulo zofunika kwambiri, kumanja mafakitale mbali fakitale si wotsatsa wotsika kwambiri. Ndi mnzanuyo yemwe amakufunsani za kulephera kwanu koyipa kwambiri musanatchule dongosolo lanu lotsatira - kenako ndikumangirira zomwe mukuchita. Umu ndi momwe kudalirika kumakhala kobwerezabwereza.
