Lokacin da injiniyoyi suka ƙididdige sassa don famfunan ruwa na ruwa, bawul na filayen mai, ko tsarin winch mai nauyi, ba kawai ƙarfe suke buƙatar ba—suna buƙatar tabbaci mai girma. Bambancin 0.02 mm a cikin wurin zama na cobalt-alloy bututun ƙarfe na iya haifar da cavitation. Matsakaicin 0.05 mm a cikin gidan famfo na silinda na piston na iya haɓaka lalacewa da kashi 40%. Shi ya sa manyan OEMs da Tier-1 masu ba da kayayyaki ke komawa a koyaushe rasa kakin zuma madaidaicin simintin gyaran kafa wanda ke ɗaukar haƙuri ba a matsayin manufa ba-amma azaman tushe.
Me yasa Simintin Zuba Jari Har yanzu Ya Yi Nasara Inda CNC Kadai Ya Fasa
Mun ga ayyuka da yawa sun tsaya tsayin daka a matakin samfuri saboda masu zanen kaya sun ɗauka cewa mashin ɗin axis da yawa zai iya ɗaukar hadaddun geometries na ciki-kamar rarrabuwar ruwa a cikin gidajen famfo na AMS 5387 ko ƙananan tashoshi masu sanyaya a cikin jikin bawul ɗin alloy na T800. CNC yana aiki da kyau akan fasalulluka na waje. Amma lokacin da kaurin bango ya faɗi ƙasa da 2.5 mm, radi na ciki yana raguwa zuwa R0.3, kuma amincin ƙarfe dole ne ya tsira daga hawan zafin jiki na 350°C? A nan ne ɓataccen simintin gyare-gyaren kakin zuma ke ba da abin da niƙa ba zai iya ba: sarƙaƙƙiya mai siffa ba tare da lalata tsarin hatsi ba.
A wurinmu a Qingdao, kowane ɓangaren cobalt-nickel yana farawa da ƙirar kakin zuma da aka gina daga ingantattun bayanan CAD-ba ƙimanta fayilolin STL ba. Muna amfani da tsomawa harsashi yumbu mai vacuum, sarrafa dewaxing a 120°C, da preheating tanderu zuwa 1,050°C kafin zuba. Wannan yana kawar da ɓangarorin ɓangarorin ɓarke na gama gari a madadin simintin yashi. Sakamakon? Ƙarshen simintin simintin gyare-gyare na Ra 3.2 µm, juriya na linzamin kwamfuta na ± 0.05 mm har zuwa 200 mm, da cikakken yarda da ISO 8062-2: 2013 don jurewa ɓangaren simintin.
Haɗin Kai Tsaye Ba Kalma Bace - Inshorar Girman ku ce
Wasu masana'antun suna jigilar simintin gyare-gyare zuwa shaguna na ɓangare na uku don yin inji. Wannan yana gabatar da masu canji guda uku waɗanda ba a sarrafa su: murɗaɗɗen zafi yayin sufuri, rashin daidaituwar bayanai, da jinkirin madaukai na amsa lokacin kiran kiran GD&T tare da lissafin simintin simintin gyare-gyare. Muna guje wa duka ukun ta hanyar sarrafa simintin gyare-gyare, maganin zafi, da ƙarewa a ƙarƙashin rufin ɗaya-kuma ƙarƙashin tsarin inganci ɗaya.
Kwayoyin mu na CNC suna gudanar da milling 5-axis a lokaci guda da kuma tabbatar da aikin CMM akan kowane jikin bawul ɗin matsa lamba. Lokacin da abokin ciniki ya ƙaddamar da zane tare da haƙurin matsayi na gaskiya na Ø0.03 mm akan ramukan ƙugiya guda shida dangane da datum da aka kafa akan flange mai bakin bakin ciki-muna injin, aunawa, daidaitawa, da sake aunawa-duk cikin motsi ɗaya. Babu handoffs. Babu rarrabuwa. Babu gibin ganowa. Kowane kuri'a yana ɗaukar cikakkun takaddun shaida, rajistan ayyukan zafi, da daidaita rahotannin da aka adana na shekaru 10.
Wannan haɗin kai yana da mahimmanci tare da superalloys. Abubuwan tushen cobalt na T800 suna taurare ba tare da tsinkaya ba bayan annealing bayani. Idan injin ɗin ya faru kafin tsufa na ƙarshe, ragowar damuwa yana sake rarrabawa kuma yana wargaza saman saman rufewa. Tsarin mu yana kulle a cikin jeri: simintin → rage damuwa → inji → shekaru → dubawa na ƙarshe. Mun rage sake yin aikin bayan-zafi akan abubuwan AMS 5387 daga 11% zuwa 0.8% a cikin watanni 24 da suka gabata-saboda muna sarrafa dukkan sarkar.
Aiki na Duniya na Gaskiya yana farawa da La'akarin Abubuwan Duniya na Gaskiya
“Tabbataccen ɗanyen abu” yana nufin kaɗan idan rahoton gwajin niƙa bai yi daidai da alamar ingot ba—ko kuma idan ba a gano rarrabuwar gawa ba a farkon milimita 50 na zuba. Muna samo allunan cobalt-nickel na musamman daga masana'antun da aka tabbatar da su zuwa ASTM B575 da AMS 5387 Rev. D. Kowanne zafi yana fuskantar hasashewar hasashe a lokacin da aka karɓa. Kowane jefa kuri'a yana samun tabbacin PMI *kafin* ginin harsashi—da kuma bayan yin injin.
Har ila yau, muna kula da haɗin gwiwar fasaha tare da masu samar da cobalt biyu na farko-ɗaya a Turai, ɗaya a Arewacin Amirka-don haɓaka ƙayyadaddun matakan sarrafa zafi. Misali: lokacin da ake jefa nozzles T800 don famfunan da ke da ƙarfi mai ƙarfi, muna daidaita ƙimar ƙarfi da lokacin sanyaya mold dangane da ainihin abun ciki na carbon da silicon na wannan zafin-ba ƙayyadaddun ƙayyadaddun bayanai ba. Wannan shine yadda muke samun daidaiton taurin 42-45 HRC a cikin kashi 98% na ayyukan samarwa, ba samfuran lab kawai ba.
Abokan ciniki sukan yi tambaya: "Shin za ku iya riƙe ± 0.025 mm akan diamita 120 mm a cikin T800?" Ee — idan zanen ya ƙunshi tsarin ƙididdiga mai aiki, yana ƙayyadaddun buƙatun amincin saman (ba kawai rashin ƙarfi ba), kuma yana ba mu damar inganta kwaikwaiyon hanyar kayan aiki akan alawus ɗin hannun jari. Za mu gaya muku gaba idan zai yiwu. Ko kuma inda za a daidaita.
Zaɓan Masana'antar Simintin Kakin Kakin Kaki Da Bata Bace Yana nufin Zaɓar Bayanan Haɗarin ku
Masu simintin simintin gyare-gyare masu rahusa suna gasa akan farashin kowace kilogram. A gaskiya rasa kakin zuma madaidaicin simintin gyaran kafa gasa akan gujewa gazawa. Kowane filogi na cobalt da muke isar da shi yana ɗaukar cikakkiyar ganowa-daga lambar zafi zuwa bayanan gwaji na ƙarshe. Kowane injiniyan abin hawa winch shaft yana jigilar kaya tare da rahotanni masu girma da masu sa ido na ASQ suka sanya hannu. Kowane oda ya haɗa da ra'ayoyin masana'antu masu fa'ida - ba kawai "za mu iya yin shi ba," amma "ga yadda za a rage farashi da 22% ba tare da sadaukar da matsin lamba ba."
Wannan horon shine dalilin da ya sa adadin mu na maimaitawa ya wuce 76% a duk Arewacin Amurka, Turai, da kudu maso gabashin Asiya. Ba don mu ne mafi arha ba. Domin lokacin da taron famfo ɗin ku ke gudana a 4,000 psi na sa'o'i 18,000, babu wani abu kamar "mai kyau." Akwai kawai tabbatar da aikin-da masana'anta da ke tsaye a bayansa.
