Lokacin da injiniyoyi da manajan sayayya ke nema saman karfe allura gyare-gyaren kamfanonin factory, ba kasafai suke buƙatar masu samar da kayayyaki ba. Suna buƙatar abokan hulɗa waɗanda suka fahimci dalilin da yasa bututun ƙarfe na cobalt ya kasa a 650 ° C, yadda kwanciyar hankali na iyakar hatsi na AMS 5387 ke shafar rayuwar gajiyar famfo, ko me yasa GD&T callouts akan gidan silinda na piston ba za a iya “kimanta” a cikin simintin simintin gyare-gyare ba-sannan a sarrafa shi. Wannan shine gaskiyar aiki a bayan abubuwan masana'antu masu inganci. Kuma anan ne aka fara bambance-bambance na gaskiya-ba a cikin ƙasidu ba, amma a cikin rajistan ayyukan gano kayan, rahoton CMM daga kuri'a #A7291, da ƙwararren masani wanda ke daidaita ƙimar abinci a tsakiyar injina saboda ƙarancin zafin jiki na T800 billet yana karanta 3% ƙasa da ƙayyadaddun bayanai.
Me yasa "Top" yana nufin wani abu na musamman a cikin Ƙarfe na Injection Molding
"Top" ba game da ƙidayar kai ba ne ko kuma fim ɗin murabba'in masana'anta. Yana da game da maimaitawa a ƙarƙashin damuwa na ƙarfe. Abokin babban matakin MIM dole ne ya kula da kayan haɗin cobalt-nickel ba tare da micro-cracking yayin ƙaddamarwa ba, sarrafa raguwar raguwa zuwa ± 0.08 mm akan jikin bawul na 120-mm, kuma ya tabbatar da rarraba yawa tare da taswirar attenuation ultrasonic-ba kawai Archimedes ba. Yawancin dillalai suna tsayawa a "muna yin MIM." Mafi kyawu suna farawa da tambaya: Menene yanayin gazawar sashin ku na yanzu yake gani? A ina hanyar lodi ta ƙare? Menene buƙatun ƙarewar saman * a wurin aiki *, ba gefen zane ba?
Mun ga raguwa uku masu maimaitawa a cikin samar da duniya: Na farko, gibin takaddun shaida-takaddun shaidan niƙa sun ɓace sigogin magani na zafi ko abun ciki na oxygen don superalloys. Na biyu, jujjuyawar juzu'i a cikin batches saboda rashin daidaituwar bayanan bayanan maƙarƙashiya. Na uku, kuskuren karantawa na sama kamar yadda ake karɓa saboda duban gani ya maye gurbin nazarin SEM na ɓangaren giciye. Waɗannan ba "al'amurra masu inganci ba ne." Suna aiwatar da gazawar gani. Masana'antun da ke guje musu suna raba sifa ɗaya: haɗin kai tsaye na prep foda, gyare-gyare, ƙaddamarwa, sintering, da HIP-kowane mataki yana ciyar da bayanan lokaci na gaba zuwa gaba.
Zurfin Fasaha Sama da Sikeli: Inda Madaidaicin Injiniya ke Rayuwa
Ɗauki bawul ɗin matsa lamba don tsarin hydraulic. Madaidaicin ƙididdiga yana neman juriya, ƙimar kayan aiki, da yawa. Shagon da aka mayar da hankali kan madaidaicin yana buƙatar hawan hawan matsi, daidaitawar ruwa (misali, HFD-U roba vs. phosphate ester), da kuma ko wurin rufewa yana mu'amala da elastomers ko ƙarfe-zuwa ƙarfe. Wannan yana canza komai: yanayi mai ban sha'awa (vacuum vs. hydrogen), bayanan bayan-HIP na gaskiya, har ma da girman grit da aka yi amfani da shi a lapping na ƙarshe.
- Cobalt alloy nozzles yana buƙatar haɓakar hatsi mai sarrafawa - yayi kyau sosai, kuma juriya na yashwa ya ragu; m, kuma thermal shock fashe ya fara
- Sassan famfo na AMS 5387 suna buƙatar sintering ƙasa da 1260°C don adana watsewar lokaci na gamma-prime
- T800 na tushen winch shaft rollers suna buƙatar simintin ƙwaƙƙwaran kwatance kafin ƙirar ƙira - porosity dole ne ya daidaita radially, ba da gangan ba.
Wannan ba ka'idar ba ce. Mun sake nazarin abubuwan MIM guda 47 da suka gaza daga OEMs na Kudu maso Gabashin Asiya a cikin watanni 18 da suka gabata. 63% an koma baya zuwa ga bambancin foda mara inganci. 22% zuwa karkatar da bayanan martaba wanda aka rufe ta hanyar "karɓar" ƙarfin kore. Kashi 15% ne kawai ke da kurakuran ƙira. Takeaway? Abokin babban matakin ku dole ne ya mallaki ɗakin binciken su na foda-ko kuma sun bincika, damar yin kwangila zuwa ɗaya.
Yadda Ganewar Duniya ta Gaskiya Yayi kama
Cikakken ganowa ba akwati ba ne. Sarkar ce: ɗanyen foda mai yawa → log ɗin ƙira mai ɗaure → ID na cavity → sintering makera yankin yanayin zafin jiki → ƙimar hawan HIP → daidaitawar CMM na ƙarshe. A mafi ƙarfinsa, yana haɗa kowane mahimmiyar girma zuwa ainihin karatun thermocouple da aka ɗauka a cikin awa na uku na sintering. Lokacin da abokin ciniki ya ƙaddamar da 0.015-mm daga zagaye-zagaye akan bututun gidaje na Silinda, amsa bai kamata ya zama "za mu sake yin aiki ba." Ya kamata ya zama: "Kogon #B7 ya nuna bambancin haɓakar zafi na 0.012-mm a 1100 ° C - ga ma'aunin wutar lantarki da aikin gyara da muka aiwatar don Lutu #A7302."
Wannan matakin na lissafin yana buƙatar takaddun da suka dace da ISO wanda aka saka a cikin aikin aiki-ba a lissafta sama ba. Yana nufin masu aiki log s *kafin* danna maɓallin “fara zagayowar”, ba bayan haka ba. Yana nufin foda mai shigowa yana samun bincike na XRF * da * rarraba girman barbashi ta hanyar diffraction na laser - ba kawai gwajin sieve ba. Yana nufin kowane ɓangaren da aka gama yana ɗauke da lambar QR mai haɗawa da cikakken tagwayen dijital ɗinsa: takaddun shaida, sigogin tsari, rahotannin dubawa, har da ID ɗin mai aiki wanda ya yi tabbacin gani na ƙarshe.
Zaɓan Abokin Hulɗarku: Ma'auni masu Aiki, Ba Kalmomi ba
Kafin aika RFQ, yi waɗannan tambayoyi guda biyar-kuma ku nemi cikakkun amsoshi:
- Shin za ku iya ba da rahoton ingantattun daidaiton zafin wuta na tanderun don ƙuri'a na cobalt gami uku na ƙarshe?
- Menene iyakar izinin oxygen ppm a cikin AMS 5387 koren sassa pre-sintering-kuma ta yaya kuke auna shi?
- Nuna mana rahoton yarda na GD&T don hadadden ɓangaren bangon bakin ciki (misali, ≥10: 1 rabo mai tsayi zuwa kauri) tare da aƙalla matsayi na gaskiya guda biyar.
- Ta yaya kuke tabbatar da daidaituwar yawa a kan tushen famfo mai tsayin mm 150? (Amsoshin da aka yarda da su: micro-CT, taswirar saurin saurin ultrasonic. Ba za a yarda da shi ba: “gwajin ƙima”)
- Menene matsakaicin lokacin ku daga gano rashin daidaituwa zuwa tushen dalilin rufewa ga lahani mara kyau?
Idan amsar ta hada da "muna bin ka'idodin masana'antu" ko "ƙungiyarmu masu inganci suna ɗaukar wannan," ci gaba da dubawa. The saman karfe allura gyare-gyaren kamfanonin factory kada ku bayyana matakai-suna nuna su. Suna jigilar rahotannin girma tare da kowane samfuri. Suna raba juzu'i masu lankwasa tsakanin kuri'a. Sun bar ka ka duba bayanan yanayin zafi na foda.
Makomar na kantuna ne waɗanda ke kula da MIM ba azaman gajeriyar siffa ta kusa-net ba-amma azaman ingantaccen tsarin masana'antu na ƙarfe. Wannan yana farawa da sanin ainihin inda cobalt ɗinku ya fito, yadda mai ɗaure ku ke ruɓe, da kuma dalilin da yasa bayanin martabarku yayi kama da hoton yatsa-ba samfuri ba.
