Domin tabbatar da ingancinƙirƙiradon saduwa da buƙatun ƙira da amfani da alamomi, wajibi ne donƙirƙira(blank, samfuran da aka kammala da samfuran da aka gama) dubawa mai inganci.
A abun ciki na forgings ingancin dubawa hada da: sinadaran abun da ke ciki dubawa, bayyanar da girman dubawa, macroscopic kungiyar dubawa, microscopic kungiyar dubawa, inji Properties dubawa, saura danniya dubawa da ultrasonic flaw gano.

1. Chemical abun da ke ciki dubawa janar jabu ba sa gudanar da binciken sinadaran abun da ke ciki, sinadaran abun da ke ciki dogara ne a kan smelting makera samfurin bincike.Amma don ƙirƙira mai mahimmanci ko abin tuhuma, ana iya yanke wasu kwakwalwan kwamfuta daga jabun kuma ana amfani da nazarin sinadarai ko bincike na gani don gwada abubuwan sinadaran.
2. Girman girman bayyanar ta amfani da dubawa na gani, samfuri ko hanyar yin alama, bincika lahani na fage, kuskuren siffa da girman, don sanin ko za'a iya yin injin ƙirjin.
3. Macro Organization inspection kuma ana kiranta da ƙananan lokutan dubawa, shine amfani da ido tsirara ko fiye da sau 10 na gilashin ƙararrawa, duba saman ƙirƙira ko sashin ƙungiyar macro.Babban hanyoyin sune: bugu na sulfur, lelejin zafi mai zafi, ruwan sanyi da karaya.
4. Jarabawar microstructure, watau metallographic exam, shine lura, ganowa da kuma nazarin yanayin microstructure da rarraba juzu'i a ƙarƙashin ma'aunin haske, don taimakawa fahimtar alaƙar da ke tsakanin microstructure da aikin ƙirƙira.
5. Mechanical Properties duba janar inji Properties na forgings, ciki har da duba taurin, kayyade ƙarfi Manuniya da plasticity Manuniya, taurin Manuniya, da dai sauransu Ga wasu muhimman forgings, domin fahimtar yi a karkashin m nauyi da kuma iya aiki na reciprocating load, jimiri. , ya kamata kuma a gudanar da gwaje-gwaje masu rarrafe da gajiya.
6. Residual stress check A cikin tsarin samar da ƙirƙira, saboda rashin daidaituwa, yanayin zafi mara daidaituwa, canjin lokaci mara daidaituwa zai haifar da damuwa na ciki, kuma a ƙarshe kasancewa cikin ƙirƙira damuwa na ciki shine saura damuwa.Lokacin da akwai da yawa saura damuwa a cikin ƙirƙira, da workpiece za a nakasa saboda asarar ma'auni na saura danniya a lokacin machining, wanda zai shafi taro.Kuma a cikin aiwatar da amfani, saboda saura danniya da kuma aiki danniya superposition zai haifar da sifili gazawar, sabõda haka, dukan inji lalace.Sabili da haka, yanayin fasaha na wasu mahimman ƙirƙira, kamar zoben gadi na janareta, sun nuna cewa ragowar damuwa bai kamata ya wuce 20% na ƙarfin amfanin gona ba.
A cikin abubuwan dubawa masu inganci na sama, kamar bayyanar jabu, ƙarancin ƙarfi, abubuwan binciken da ba su cancanta ba za a soke su.Idan kayan aikin injin binciken ba su cancanta ba, ana iya sake gyara su.Idan har yanzu basu cancanta ba, suna buƙatar gyara su kuma a sake yi musu magani.Don jujjuyawar gabaɗaya, zaɓi ɗaya kawai ko da yawa na jabun daga batch ko makera iri ɗaya don dubawa.Kuma ga mahimman kayan ƙirƙira, irin su ƙirƙirar kayan aikin wutar lantarki, manyan ƙugiya, tasoshin matsa lamba, da sauransu, kowane ya kamata a bincika.Dangane da binciken jabu na waɗannan abubuwan, yakamata a dogara da yanayin fasaha.