Manyan ɓangarorin masana'antu ba sa jurewa sasantawa-musamman lokacin da suke aiki ƙarƙashin matsi na hydraulic mashaya 300, bayyanar iskar gas 600°C, ko ci gaba da lalacewa a cikin sabis na filin mai. Shi ya sa injiniyoyi a Tier-1 famfo OEMs da na'ura mai aiki da karfin ruwa tsarin integrators ƙara ketare ƙirƙira na gargajiya da kuma juya zuwa. karfe foda metallurgy factory mafita - ba a matsayin koma baya ba, amma a matsayin kawai hanyar da za ta iya kaiwa ga kwanciyar hankali, daidaiton microstructural, da amincin aiki a cikin abubuwan haɗin cobalt-nickel kamar AMS 5387 famfo gidaje ko T800 alloy nozzles.
Me yasa Powder Metallurgy Ya Yi Nasara Inda Machining Kadai Ya Kasa
Mun gani akai-akai: abokin ciniki ya aika da zane mai arzikin GD&T don filogi na cobalt tare da juriya na matsayi na 0.01 mm akan ramukan makafi guda shida-kuma yana tsammanin ± 0.005 mm kauri kauri iko a kan 120 mm radius contour. CNC machining daga m billet? Yiwuwa-amma farashin tarkace ya haura sama da 40% saboda taurin aiki, jujjuyawar kayan aiki, da yaɗuwar micro-crack a cikin AMS 5387. Zuba jari? Mafi kyawun amfanin ƙasa, amma haɗarin porosity yana haifar da 100% ultrasonic nunawa-kuma har yanzu babu garantin tarwatsawar carbide iri ɗaya.
Foda karfe gadoji cewa tazarar. Ta hanyar latsawa mai zafi mai zafi (HIP) Co-Ni-Cr-Mo foda, muna kulle kusa-kusa da yawa * kafin * injin ƙarshe. Sakamakon? Babu kurakurai na ciki. Babu sabani kwararar hatsin al'ada. Babu murdiya ta thermal yayin maganin zafi. Kuma mahimmanci-babu buƙatar cire kashi 70% na albarkatun ƙasa kawai don isa sifa. Daya daga cikin masana'antun famfo na Arewacin Amurka ya yanke lokacin gubar da kashi 36% kuma jimlar farashin kowane sashi da kashi 29% bayan an canza shi daga jabun-zuwa-mashin zuwa gidajen silinda na HIP + gama-gari.
Ƙarfin Ƙarfi guda huɗu waɗanda ba sa sasantawa dole ne ka tabbatar
A gaskiya karfe foda metallurgy factory ba a bayyana shi ta hanyar mallakar latsa ba—ana auna ta ta yadda take sarrafa yankuna huɗu masu dogaro da kai:
- Raw kayan ganowa: Kowane nau'i na T800 ko AMS 5387 foda dole ne ya ɗauki cikakkun takaddun niƙa - ba kawai abun da ke ciki ba, amma abun ciki na oxygen (<150ppm), rarraba girman barbashi (D50 = 15-25 µm), da kuma taɓa bayanan yawa. Muna ƙin ƙuri'a na foda ba tare da ƙwararrun sigogin HIP da aka shigar da su akan kowace lambar zafi ba.
- HIP tsarin horo: Matsi kadai baya bada garantin yawa. Zagayen mu na HIP yana riƙe da 1150 ° C a 150 MPa na tsawon awanni 3 - sannan yayi sanyi a ≤5°C/min ƙarƙashin argon. Juya ta 10°C ko 10MPa, kuma kuna haɗarin haɗakarwa da bai cika ba a mu'amalar barbashi.
- Bayan-HIP aminci girma: sassan HIP suna raguwa anisotropically-har zuwa 0.18% axially, 0.09% radially. Shirye-shiryen mu na CNC yana ramawa ta amfani da taswirorin ƙirƙira na Laser, ba gamayya ba. Wannan shine yadda muke riƙe ± 0.008 mm akan ID ɗin piston bayan niƙa na ƙarshe.
- Ingantaccen aiki fiye da CMM: Cikakken ma'aunin daidaitawa yana nufin komai idan ɓangaren ya gaza fashe gwaji. Muna inganta kowane matsi na bawul ɗin matsi a 1.5 × matsa lamba na aiki don mintuna 60-tare da taswirar taswirar ainihin lokacin ta hanyar daidaita hoto na dijital (DIC).
Lokacin da Hybrid Casting-Machining Beats Pure PM
Wasu sassa sun ƙetare hanyoyin foda masu tsabta. Nadi na cibiyar winch na buƙatun T800 na waje mai jure lalacewa - amma ainihin sa dole ne ya ɗauki nauyin girgiza ba tare da karaya ba. Anan, yashi-simintin karfen mu yana samun kutsawa tare da narkakken cobalt gami a ƙarƙashin injin, sannan ana bi da HIP azaman raka'a ɗaya. Ƙarfin haɗin gwiwa ya wuce 620 MPa - an tabbatar da shi ta sashin giciye SEM/EDS. Abokan ciniki waɗanda suka yi ƙoƙarin yin sutura sun fara ba da rahoton delamination bayan hawan keke 4,200; nau'in nau'in namu ya wuce 18,500 hawan keke a gwajin gajiya na ɓangare na uku.
Wannan ba ka'idar ba ce. Shi ne abin da zai ba mu damar isar da geometries marasa daidaituwa-kamar ginshiƙan famfo mai ban sha'awa tare da haɗaɗɗun tashoshi masu sanyaya-wanda zai buƙaci saiti daban-daban guda biyar akan kayan aiki na yau da kullun. Muna injina su a cikin ayyuka guda biyu: m HIP + gama akan injin 5-axis tare da kayan aiki mai rai da karkatar da axis B.
Abin da za ku nema kafin ku saki PO
Tambayi mai kawo muku waɗannan tambayoyin guda uku-kuma kuyi tafiya idan amsoshin basu da takamaiman bayani:
- "Nuna mani rajistan ayyukan HIP guda uku na ƙarshe don AMS 5387 - haɓaka ƙimar zafin jiki, lokacin zama, da rahotannin metalography bayan sake zagayowar."
- "Ta yaya za ku tabbatar da rashin micro-porosity kasa 25 µm? Shin X-ray CT ne, nazarin lokaci na ultrasonic, ko ɓarna mai lalacewa?"
- "Idan zane na ya ƙayyade ƙimar matsa lamba na ASME B16.34 Class 900, menene ƙa'idar gwajin leak ɗin ku - kuma menene ƙimar izinin ku na tarihi?"
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., waɗannan rajistan ayyukan ana iya duba su cikin sa'o'i 2. Gwajin gwajin mu yana amfani da ma'aunin ƙira na helium a 1 × ƙirar ƙira don 120 seconds - ƙimar wucewa: 99.87% akan sassan 14,200 da aka jigilar tun Q3 2022.
Don abubuwan da ke da mahimmancin manufa, ƙarfe na foda ba game da rage farashi ba ne. Yana da game da kawar da yanayin gazawar kafin su shiga layin taron ku. Idan aikin ku na gaba yana buƙatar AMS 5387, T800, ko wasu manyan madaidaicin sassa inda lissafin lissafi, mutunci, da maimaitawa ba za a iya sasantawa ba — kuna buƙatar fiye da karfe foda metallurgy factory. Kuna buƙatar wanda ke ɗaukar kowane lambar zafi kamar sawun yatsa, kowane zagayowar HIP kamar aikin tiyata, da kowane rahoton CMM kamar takaddun doka. Wannan shine tushen tushe. Duk wani abu da ya rage yana haifar da haɗarin lokacin aikinku, da'awar garantin ku, da kuma mutuncinku.
