Lokacin da injiniyoyi suka bayyana a al'ada gami machining factory, Ba wai kawai suna yin oda ba - suna tabbatar da kwanciyar hankali a ƙarƙashin 350 mashaya matsa lamba na hydraulic, tsayayya galling a cikin cobalt-alloy nozzles a 650 ° C, ko tabbatar da ci gaba da microstructure a fadin gidan famfo mai yashi wanda zai gudanar da sa'o'i 20,000 ba tare da gazawa ba. Wannan shine gaskiyar aiki-ba alƙawarin daftarin bayanai ba.
Mun ga abokan ciniki suna jigilar zane don AMS 5387 cobalt gami da abubuwan famfo famfo kawai don karɓar sassa tare da porosity na ƙasa bayan maganin zafi. Wasu suna ɗauka "CNC machined" yana nufin "a shirye don shigarwa" - har sai T800 alloy center shaft roller nasu ya kasa gwajin girgiza saboda rashin kulawa da ragowar damuwa daga wucewar milling asymmetric. Waɗannan ba lokuta ba ne. Su ne sakamakon kai tsaye na rarrabuwar ƙarfi: simintin gyare-gyaren da wani kanti ya yi, ƙera mashin ɗin wani, gama niƙa ta kashi na uku-kowanne yana da dabarun kayan aiki daban-daban, sarrafa zafi, da ka'idojin dubawa.
Me yasa haɗin kai tsaye ba zaɓi ba ne don ingantaccen aiki mai inganci
Ikon gaskiya yana farawa kafin guntu na farko ya tashi. A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., takaddun shaida na albarkatun kasa ba matakin aikin takarda ba ne - tushe ne. Kowane cobalt na tushen gami na T800 yana zuwa tare da rahotannin gwajin niƙa wanda za'a iya gano shi zuwa lambar zafi, ingantaccen abun ciki na sinadarai da ASTM E1086, da girman hatsi da aka tabbatar ta hanyar ASTM E112. Ba mu yarda da sinadarai "na al'ada" ba. Muna buƙatar ingantacciyar yardawar AMS 5387-musamman ga sassan famfo mai mahimmanci inda bambancin chromium sama da ± 0.3% ke haifar da lalata tsaka-tsakin tsaka-tsakin da bai kai ba a cikin mahallin gas mai tsami.
Wannan horo yana ci gaba ta hanyar tsari. Yashi simintin gyare-gyare da saka hannun jari na faruwa a wurin-ba daga waje ba-don haka muna sarrafa ƙimar zafin zafin jiki, ƙarfafa gradients, da lokacin shakeout. Bambancin 2°C a cikin ƙirar ƙira yana canza tazarar hannun dendrite da kashi 12%, yana tasiri kai tsaye da injina da rayuwar gajiyawa a cikin gidajen piston famfo Silinda. Kwayoyin mu na CNC sai su yi amfani da tabbatarwar CMM a cikin aiki bayan roughing, Semi-karewa, da ƙarewar wucewa-ba kawai dubawa ta ƙarshe ba. Muna auna zafin zafi akan injunan axis da yawa kowane minti 90 saboda faɗaɗa 0.008 mm a cikin ɗakunan katako na canza yanayin da ya wuce wuraren jurewar GD&T.
Inda daidaitattun ayyukan aikin injin ɗin suka rushe-kuma menene ainihin ke aiki
Wasu na iya jayayya cewa duk wani shago da aka tabbatar da ISO 9001 zai iya ɗaukar allunan cobalt-nickel idan aka ba su kayan aikin da suka dace. Amma abin da ya faru a zahiri yana ba da labari daban. Daidaitaccen carbide yana shigar da karaya nan take akan AMS 5387 a ƙimar ciyarwa sama da 0.05 mm/rev. Muna amfani da kayan aikin PCD da aka yi amfani da su tare da nau'ikan rake mara kyau, mai sanyaya wanda aka ba da shi a mashaya 120 ta hanyoyin tashoshi na ciki, da hanyoyin daidaitawa waɗanda ke kula da nauyin guntu akai-akai-har ma a kusa da kwatancen 3D kamar jikin bawul ɗin matsa lamba tare da kauri na bangon 4.2 mm da buƙatun flatness 0.025 mm.
Mutuncin saman yana da mahimmanci kamar geometry. Ƙarshen madubi Ra 0.2 µm ba zai hana lalata lalatawar damuwa ba idan ƙananan ƙananan ƙananan ƙananan sun wanzu daga zaɓin dabaran niƙa mara kyau. Don simintin gyare-gyaren bakin karfe da aka yi amfani da shi a cikin tushe na famfo na teku, muna amfani da electropolishing *bayan* harbe-harbe-ba a da ba-don adana damuwa saura yayin samun juriyar lalata ta ASTM A967. Wannan jeri ba na ka'ida ba ne. An inganta shi a kan ainihin samar da kuri'a, tare da nazarin SEM na giciye yana tabbatar da rashin samuwar farar fata.
Menene ainihin ma'anar "al'ada" a cikin aikace-aikace masu mahimmancin manufa
Al'ada ba game da ma'auni mara kyau kadai ba. Yana game da daidaitawar aiki. Lokacin da OEM na Turai ke buƙatar rollers na shaft na tsakiya don motocin injiniyan aji-arctic, sun ayyana tauri-amma ba su ƙididdige ƙarfin tasirin zafi ba. Mun gudanar da gwaje-gwaje na Charpy V-notch a -40 ° C akan bambance-bambancen da aka magance zafi guda uku, sun ba da shawarar canjin yanayin zafi, kuma mun isar da rollers tare da ƙarfin tasiri na 42 J (ba kawai 27J da ake buƙata ba). Wannan shawarar ta hana karaya yayin juyar da kaya kwatsam a kan ƙasa mai lulluɓe.
Wannan matakin haɗin gwiwar yana ƙaddamar da ƙira-don-ƙera. Muna ba da alamar kiran GD&T waɗanda ke cin karo da daftarin kusurwoyi. Muna kwaikwayi murdiya ta thermal a cikin bututun ƙarfe mai bakin bango mai bangon cobalt a lokacin cirewar bayani. Muna ba da ra'ayoyin ƙira a cikin sa'o'i 48-ba makonni ba-saboda samfuri yana jinkirin shiga cikin lokutan tabbatar da filin. Manajojin aikin mu suna magana da kyau ASME Y14.5, ba Ingilishi kawai ba.
Idan kana bukatar a al'ada gami machining factory wanda ke ɗaukar ƙarfe a matsayin injiniyanci-ba siyayya ba- kuna neman ɗanɗano haɗin kai tsakanin kimiyyar kayan aiki, sarrafa zafi, da daidaitaccen sarrafa motsi. Kuna buƙatar bayanan ganowa daga lambar zafi zuwa rahoton dubawa na ƙarshe. Kuna buƙatar abokan haɗin gwiwa waɗanda suka ɓata T800 alloy plug wuraren zama masu lanƙwasa a cikin bambance-bambancen tsarin hydraulic 17. Kuna buƙatar tabbataccen kisa-ba kawai maganganun iyawa ba. Wannan shine bakin kofa inda ƙayyadaddun ke ƙarewa kuma aikin ya fara.
