Lokacin da gidan famfo na ruwa ya kasa a 3,000 psi-ko cobalt alloy nozzle cracks a karkashin hawan keke-tushen sanadin da wuya ƙira. Iyawar masana'anta ce ta micro machining: ikon riƙe ± 2 µm haƙuri akan kayan AMS 5387 mai taurin yayin da yake kiyaye amincin saman ta hanyar maganin zafi da ƙarewa. Wannan matakin sarrafawa baya fitowa daga shagunan CNC na gaba ɗaya. Yana rayuwa a cikin wuraren da aka gina don manufa ɗaya: juya babban hadaddun gami zuwa maimaita aiki mai mahimmanci, manufa.
Me yasa "Micro Precision" Ba Tallace kawai ba - Ayyukan Aunawa ne
Gaskiya micro ainihin machining ya wuce maƙasudin lambobi akan zane. Yana da maimaitawa na bugun 0.0001 ″ (2.5 µm) juriya na matsayi a cikin sassa 500 da aka yi daga T800 na tushen superalloy-kayan da ke taurare yayin injin, yana jujjuya kayan aiki, kuma yana buƙatar diyya na ainihin lokaci. Mun ga abokan ciniki sun canza masu kaya bayan da yawa na gidajen silinda na piston famfo sun gaza. Kowane lokaci, batun ba fassarar GD&T ba ne - ba daidai ba ne sarrafa zafin jiki yayin niƙa mai yawan axis. Sashin ya wuce gwaje-gwajen CMM a zazzabi na ɗaki amma ya juye ƙarƙashin nauyin aiki. Wannan ba gazawar QA ba ce. Yana da tazarar tsari.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., ƙananan ma'ana yana nufin shigar da metrology a cikin aikin aiki-ba kawai a dubawa na ƙarshe ba. Billet ɗin cobalt-nickel masu shigowa suna yin bincike na gani kafin yin roughing. Binciken cikin-tsari yana amfani da na'urar daukar hoto ta gani a kan mahimmin saman rufewa-ba kawai binciken CMM ba. Tabbatar da aikin ƙarshe ya haɗa da gwajin matsa lamba na jikin bawul ɗin da aka haɗa a 1.5 × ƙimar aiki mai ƙima. Wannan ba aikin injiniya ba ne. Yana da yadda kuke guje wa gazawar filin a cikin kayan aikin saukar mai & iskar gas inda farashin maye ya wuce $200,000 a cikin sa'a mai rauni.
Ƙarfi huɗu waɗanda ke Rarraba Mahimmancin Mahimmanci Daga Daidaitaccen Machining
Yawancin masana'antu suna da'awar "haƙuri mai girma." Kadan ne ke isar da shi akai-akai a cikin yankuna huɗu masu dogaro da juna:
- Kwarewar kayan abu: Ba wai kawai samun AMS 5387 ko T800 ba-amma yana tabbatar da daidaiton tsari-zuwa-tsalle na ƙarfe tare da ka'idojin maganin zafi na mai bayarwa-haɗin gwiwa. Filogi mara daidaitaccen abokin ciniki ɗaya yana buƙatar mafi ƙarancin HRC 42 *bayan* niƙa na ƙarshe. Daidaitaccen aiki zai sauke taurin da maki 5. Maganin mu? Taimakon damuwa na farko + sanyaya mai sarrafawa tsakanin m da ƙarewa.
- Hybrid tsari iko: Yin simintin yashi da 5-axis CNC ba sabon abu bane. Amma riƙe ± 0.02 mm kauri na bango akan simintin ƙarfe mai diamita 120mm *kafin* injina — sannan samun ± 0.005 mm akan ƙwanƙwasa na'ura - yana buƙatar kayan aiki tare da tsarin kantin kayan injin. Muna gudanar da duka biyu a ƙarƙashin rufin da ya dace da ISO.
- GD&T kisa, ba kawai karatu ba: Lokacin da zane ya ƙayyade datum B a matsayin simintin simintin gyare-gyare tare da masu gyara MMC, ba ma ɗaukan daidaiton hannun jari. Muna taswirar lissafi kamar yadda aka jefa da farko, sannan mu daidaita hanyoyin kayan aiki — don haka axis na ƙarshe ya yi daidai da filaye masu aiki, ba ƙayyadaddun bayanai ba.
- Binciken da ke da mahimmanci: Kowane bawul ɗin matsa lamba yana ɗauke da alamar QR mai haɗawa zuwa takardar shaidar albarkatun ƙasa, log ɗin maganin zafi, rahoton CMM, da hoton dubawa na ƙarshe. Ba don wasan kwaikwayo na yarda ba-saboda lokacin da abin nadi na cibiyar winch ya gaza a cikin jiragen ruwa na Norway na bakin teku, injiniyoyi suna buƙatar ware ko batun yana haifar da kwararar hatsi ko taimako na damuwa bayan injin.
Farashin "Kyakkyawan Isa" a cikin Aikace-aikacen Babban Ayyuka
Wasu masu siye suna ɗaukar zaɓin masana'anta daidaitaccen mashin ɗin azaman motsa jiki mai tsada. Suna kwatanta ƙididdiga don tushe na famfo na bakin karfe kuma zaɓi mafi ƙanƙanta tayin. Daga nan sai su fuskanci sake aiki: gaskat leaks a mashaya 250, rashin daidaituwar mujallolin da ke haifar da lalacewa da wuri, ko rufewar da ba a shirya ba yayin ƙaddamarwa. Lissafin yana motsawa da sauri. Wani sashi na $1,200 wanda ke jinkirta farawa da awanni 48 yana kashe fiye da kashi $2,800 da aka kawo akan jadawalin-tare da cikakken yanayin yanayin ƙarfe da ƙarfe.
Mun bin diddigin ayyukan 17 sama da shekaru biyu inda haɗin gwiwar aikin injiniya na farko ya yanke jimlar farashin ƙasa da kashi 19-33%. yaya? Ta hanyar nuna haɗarin ƙira * kafin * kayan aiki: ba da shawarar ɗan ƙaramin kusurwa akan bututun ƙarfe na cobalt don kawar da ƙarewar EDM, ko daidaita radiyon fillet don hana yin magana a cikin gidan silinda mai katanga. Waɗannan ba sulhu ba ne. Madaidaicin yanke shawara ne.
Abin da za ku nema Daga Ma'aikatar Mashin Mashin Kuɗi ta gaba
Kada ku tambayi "Shin kuna yin daidaitattun micro?" Tambayi maimakon:
- "Nuna mani rahotannin CMM uku na ƙarshe na sassan da aka yi amfani da su daga AMS 5387-musamman maƙarƙashiya da bayanan tattara bayanai kan ɓarna na ciki."
- "Ta yaya za ku tabbatar da kwanciyar hankali na simintin karfe mai tsayin mm 300 kafin yin aiki na ƙarshe?"
- "Mene ne matsakaicin tsayinku mara tallafi don jujjuya ramin T800 diamita 12-mm - kuma menene ma'aunin gudu a 150 mm daga chuck?"
Idan amsoshi ba su da tushe ko kuma aka tura su zuwa "sashen ingancin mu," tafiya. Ƙwararrun masana'anta na ainihin ƙayyadaddun mashin ɗin yana nunawa a cikin rubuce-rubuce, lambobi masu maimaitawa-ba ƙasidu ba.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki inda daidaiton girma ya hadu da sakamakon aiki. Ƙarfinsa ba yana cikin yin komai ba - amma a cikin yin abubuwa mafi wuya, akai-akai: cobalt alloy nozzles, famfo silinda gidaje, bawuloli matsa lamba, da winch tsarin shafts cewa yi a karkashin matsa lamba, sake zagayowar bayan sake zagayowar. Ga injiniyoyi da ke ƙayyadaddun sassan inda bambancin matakin µm ke shafar aminci, lokacin aiki, ko rayuwa, wannan mayar da hankali ba na zaɓi ba ne. Ita ce hanya ɗaya tilo zuwa ga amincin masana'anta na daidaitaccen mashin ɗin.
