Maganganun masana'antar cobalt tushe mai tsabta ba game da siyan sandunan gami da tafiyar da su ta hanyar lathe ba. Suna game da sarrafa microstructure a cikin sassa 10,000+ - yayin da suke riƙe da ± 0.015 mm haƙuri akan tashoshi masu sanyaya ciki a cikin bututun ƙarfe na cobalt alloy wanda ke aiki a 850 ° C. Mun kera kayan aikin AMS 5387 don manifolds na ruwa na ruwa a cikin teku inda microcrack ɗaya a cikin yankin da zafi ya shafa yana nufin $ 240,000 a cikin raguwar lokaci. Abin da ya sa "ma'aikatar cobalt tushe" ba kawai kalmar bincike ba ne - kofa ne. Ketare shi ba tare da horo na ƙarfe ba, tsarin ganowa, ko iyawar simintin gyare-gyare, kuma za ku fuskanci ƙima sama da 37%, jinkirin sa hannun PPAP, ko faɗuwar filin ƙarƙashin nauyin zafi na keke.
Ayyukan masana'anta na cobalt na gaskiya yana farawa da amincin kayan aiki-ba kawai takaddun takaddun shaida ba. Cobalt-nickel superalloys kamar T800 da AMS 5387 suna buƙatar kulawa mai ƙarfi akan rarraba girman hatsi, ilimin halittar carbide, da rarrabuwar kawuna. Mun ga abokan ciniki sun ƙi dukan zafi saboda rahotannin gwajin injin mai kaya da aka jera "Saukewa: AMS5387” amma an tsallake maganin yana kawar da lokacin jiƙa da ƙimar sanyaya. A aikace, wannan tsallakewar ya haifar da galling da wuri a cikin gidaje na famfo na piston bayan sa'o'i 1,200-ba 5,000 kamar yadda aka ƙayyade ba. Ma'aikatar cobalt ta gaske tana tabbatar da kowane tsari akan girman hatsin ASTM E112, ASTM E1268 carbide tarwatsawa, da kuma isar da iskar gas kai tsaye-ba kawai kaso na carbon da cobalt ba. Yana bin diddigin albarkatun kasa daga tanderun wuta zuwa ID na ƙarshe, yana lissafin zagayowar kula da zafi a cikin na'urar rikodin taswira, da taswirar taurin ra'ayi tare da takaddun shaida na gwaji da aka ja daga simintin guda ɗaya.
Amma sarrafa kayan kawai ya gaza ba tare da haɗin gwiwar gine-ginen masana'anta ba. Cobalt Alloys suna aiki da ƙarfi da ƙarfi, suna karkatar da kayan aikin tsaka-tsaki, kuma suna haifar da zafi wanda ke lalata amincin ƙasa. CNC machining kadai ba zai isar da kujerun bawul na matsa lamba tare da Ra ≤ 0.4 µm da sifili farin Layer na ƙasa. Abin da ya sa haɗin kai tsaye yana da mahimmanci: sarrafa simintin tazarar dendrite; Daidaitaccen mashin ɗin yana kawar da isassun haja don fallasa tsaftataccen filaye masu kawar da damuwa; Maganin zafi bayan machining yana dawo da ma'auni na lokaci ba tare da karkatar da geometries na bakin ciki ba. A wurin da ya dace da ISO a cikin Qingdao, muna gudanar da saka hannun jari na T800 ba tare da izini ba kai tsaye zuwa cikin niƙa 5-axis-babu matsakaicin danniya-saboda hanyar kwaikwaiyon kayan aikin mu yana haifar da haɓakar zafin jiki na anisotropic yayin yankewa. Mun rage lokacin sake zagayowar AMS 5387 famfo gidaje flanges da 29% yayin da inganta perpendicularity tsakanin hawa fuskokin daga 0.08 mm zuwa 0.022 mm. Wannan madaidaicin ya fito ne daga tabbatarwa cikin tsari na jagorancin CMM-ba dubawa na ƙarshe ba.
Wasu suna jayayya abubuwan haɗin cobalt "suna da tsada sosai don tabbatar da masana'anta na al'ada." Amma lissafin yana canzawa lokacin da kuka ƙididdige jimlar kuɗin mallakar. Ɗaya daga cikin kayan aikin filayen mai na Turai OEM ya canza daga shigo da matosai na cobalt zuwa hanyoyin da aka samo asali a cikin gida - kuma ya rage farashin naúrar da kashi 18%. A cikin watanni 14, sun maye gurbin 32% na waɗannan matosai saboda yatsuwar da ke haifar da zaizayarwa a 22,000 psi. Binciken nasu na TCO da aka sake fasalin ya haɗa da rufewar da ba a shirya ba ($ 18,500 a kowace awa), aikin sake yin aiki, da ingantaccen NDT na ɓangare na uku. Lokacin da suka tsunduma cikin masana'antar tushe na cobalt na gaskiya-inda fassarar GD&T ta faru kafin faɗo, inda simintin simintin ke hasashen haɗarin haɗari mai zafi a cikin nozzles marasa daidaituwa, kuma inda kowane tsari ya haɗa da ingantattun rahotannin ƙarfe - ƙarancin gazawar su ya ragu zuwa 0.7%. Farashin rukunin ya tashi da kashi 11%, amma farashin rayuwa a kowane shigarwa ya faɗi 43%.
Ingantacciyar masana'anta ta cobalt ba ta yi alkawarin "tsafta mai girma ba." Yana tabbatar da shi - ta hanyar daidaitawar ƙwayar hatsi a cikin winch center shaft rollers, ta hanyar maimaita tauri mai ƙarfi a cikin sandunan cobalt alloy piston 300 mm, ta hanyar kwanciyar hankali bayan sa'o'i 400 gishiri-fasa + gwaje-gwajen hawan keke na thermal akan tushen famfo. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana gina wannan hujja a cikin kowane mataki: tabbatar da abu mai shigowa tare da spectrometry da gwajin ultrasonic, in-aiki CMM cak akan mahimman fasalulluka na datum, da ingantaccen aiki na ƙarshe ta amfani da ka'idojin lalata na'ura mai aiki da karfin ruwa wanda ya dace da yanayin sabis na ƙarshen amfani. Mayar da hankali ya tsaya kunkuntar - tsarin na'ura mai aiki da karfin ruwa, kayan aikin injiniyan kayan aikin wutar lantarki, taron sarrafa mai da iskar gas - ba saboda ba shi da iya aiki ba, amma saboda takamaiman yanayin gazawar yanki (misali, yashwar cavitation a cikin nozzles na cobalt, fretting lalacewa a cikin shaft rollers) yana buƙatar shigar da hukunce-hukuncen injiniyanci, ba ƙayyadaddun ƙayyadaddun machining ba. Ga injiniyoyi masu ƙayyadaddun abubuwan haɗin cobalt masu tsafta, tambayar ba "Za su iya yin ta ba?" Yana da "Shin za su iya tabbatarwa - kashi-kashi, tsari ta tsari - cewa zai tsira daga abin da tsarin ku ke bukata?" Wannan hujja ita ce kawai awo da ke da mahimmanci.
