Ciwon ruwan kabide da guntuwar gefen abubuwa ne na gama gari. Lokacin da igiyar carbide ta sawa, yana shafar daidaiton aiki na kayan aiki, ingantaccen samarwa, ingancin aikin aiki, da sauransu; lokacin da ma'aikacin ya lura da lalacewa, ya kamata ya amsa da sauri ga matsalar. Ana nazarin tsarin injina a hankali don gano tushen abubuwan da ke haifar da lalacewa. Ana iya yin nazari daga abubuwa masu zuwa:
1. Ciwon gefen gefe
Flank lalacewa yana nufin asarar abrasion na gefen kayan aiki a ƙasa da yanke gefen abin saka carbide kuma nan da nan kusa da shi; barbashi na carbide a cikin kayan aikin aiki ko kayan aikin da aka taurare suna shafa akan abin da aka saka, da kuma kananan guda na kwasfa da gogewar ruwa; sinadarin cobalt a cikin ruwan carbide daga ƙarshe ya rabu da lattice ɗin crystal, yana rage mannewar carbide kuma yana haifar da kwasfa.
Yadda za a yi hukunci a flank wear? Akwai in mun gwada da uniform lalacewa tare da yankan gefen, kuma lokaci-lokaci peeling workpiece abu adheres zuwa yankan gefen, sa sawa surface ya fi girma fiye da ainihin yankin; wasu gyale suna fitowa baki bayan an gama sawa, wasu kuma suna sheki bayan sawa. Mai haske; baki shine murfin ƙasa ko gindin ruwan da aka nuna bayan murfin saman ya bare.
Ma'auni sun haɗa da: farko duba saurin yanke, sake ƙididdige saurin juyawa don tabbatar da daidaito, da rage saurin yanke ba tare da canza abincin ba;
Ciyarwa: Ƙara ciyarwar kowane hakori (abincin dole ne ya kasance mai girma don kauce wa lalacewa mai tsabta wanda ƙananan guntu na ƙarfe ke haifar da shi);
Abun ruwa: Yi amfani da abin da ya fi jurewa lalacewa. Idan kuna amfani da ruwa maras rufi, yi amfani da ruwa mai rufi maimakon; duba ma'aunin lissafi don sanin ko ana sarrafa shi akan kan mai yankan daidai.
2. Karye baki
Chipping gefen gefe wani yanayi ne da ke haifar da gazawa lokacin da ƙananan barbashi na yankan ke wargajewa maimakon a shafe su ta hanyar lalacewa. Chipping flank yana faruwa lokacin da aka sami canje-canje a cikin nauyin tasiri, kamar a yanke yanke. Chipping flank sau da yawa shine sakamakon rashin kwanciyar hankali yanayi, kamar lokacin da kayan aiki ya yi tsayi da yawa ko kuma kayan aikin ba su da isasshen tallafi; yankan na biyu na kwakwalwan kwamfuta kuma na iya haifar da guntu cikin sauƙi. Ma'auni sun haɗa da: rage tsawon fitowar kayan aiki zuwa mafi ƙarancin ƙimarsa; zaɓin kayan aiki tare da kusurwar taimako mafi girma; yin amfani da kayan aiki tare da gefuna mai zagaye ko chamfered; zabar wani abu mai tsauri don kayan aiki; rage saurin ciyarwa; Ƙara kwanciyar hankali na tsari; inganta tasirin cire guntu da sauran fannoni da yawa. Rake fuska spalling: M kayan iya haifar da sake dawowa kayan bayan yanke, wanda zai iya wuce bayan kusurwar taimako na kayan aiki da haifar da gogayya tsakanin gefen gefen kayan aiki da workpiece; gogayya na iya haifar da sakamako mai gogewa wanda zai iya haifar da hardening na workpiece; zai kara cudanya tsakanin kayan aiki da kayan aiki, wanda zai haifar da zafi don haifar da haɓakar thermal, yana haifar da faɗaɗa fuskar rake, yana haifar da tsinke fuska.
Ma'auni sun haɗa da: haɓaka kusurwar rake na kayan aiki; rage girman zagaye na gefen ko ƙara ƙarfin gefen; da zaɓin kayan aiki tare da tauri mai kyau.
3. Gefen yanki akan ruwan rake
Lokacin yin wasu kayan aiki, gefen rake na iya faruwa tsakanin guntu da yankan gefen; wani ginannen gefen yana faruwa a lokacin da ci gaba da Layer na kayan aiki na kayan aiki aka laminated zuwa yankan gefen. Ƙaƙƙarfan gefen da aka gina shi ne tsari mai mahimmanci wanda ya yanke Ƙarshen yanki na gefen da aka gina yana ci gaba da kwasfa da sake haɗawa yayin aiwatarwa. Gefen gaba kuma sau da yawa yana faruwa lokaci-lokaci a ƙananan yanayin aiki da ƙarancin saurin yankewa; ainihin saurin gefen gaba ya dogara da kayan da ake sarrafawa. Idan an sarrafa kayan aikin da aka yi amfani da su, kamar austenitic Idan jiki ya kasance da bakin karfe, to, gefen rake na iya haifar da tarawa da sauri a zurfin yanke, wanda ya haifar da lalacewa na biyu na lalacewa a zurfin yanke.
Ma'auni sun haɗa da: haɓaka saurin yankan ƙasa; tabbatar da daidai aikace-aikacen coolant; da zaɓin kayan aiki tare da murfin tururi na jiki (PVD).
4. Gina gefen gefen gefe
Hakanan yana iya faruwa a gefen gefen gefen yanki na kayan aiki. Lokacin yankan aluminum mai laushi, jan karfe, filastik, da sauran kayan, gefen gefen kuma yana haifar da rashin isasshen izini tsakanin kayan aiki da kayan aiki; a lokaci guda, gefen gefen nodules suna da alaƙa da kayan aiki daban-daban. Kowane workpiece abu na bukatar isasshen adadin yarda. Wasu kayan aikin, kamar aluminum, jan karfe, da filastik, za su sake dawowa bayan yanke; spring baya iya haifar da gogayya tsakanin kayan aiki da workpiece, wanda bi da bi ya sa sauran sarrafa kayan zuwa bond. Ƙaƙƙarfan baki.
Ma'auni sun haɗa da: ƙara babban kusurwar taimako na kayan aiki; ƙara saurin ciyarwa; da kuma rage zagaye na gefen da ake amfani da shi don gyaran gaba.
5. Thermal fasa
Ana haifar da fashewar thermal saboda matsanancin canje-canje a yanayin zafi; idan machining ya ƙunshi yankan tsaka-tsaki kamar milling, yankan gefen zai shiga ya fita daga kayan aikin sau da yawa; wannan zai ƙara da rage zafi da kayan aiki ke sha, kuma maimaita canje-canje a cikin zafin jiki zai haifar da fadadawa da ƙaddamar da kayan aiki na kayan aiki yayin da suke zafi yayin yankewa da sanyi tsakanin yanke; lokacin da ba a yi amfani da mai sanyaya ba daidai ba, mai sanyaya na iya haifar da canjin zafin jiki mai girma, yana hanzarta fashe zafi, kuma Yana sa kayan aikin yin kasawa da sauri. Zazzabi yana taka muhimmiyar rawa a rayuwar kayan aiki da gazawar kayan aiki; thermal cracks bayyanar cututtuka ne na fatattaka a kan rake da gefen gefen gefen yanke. Jagoran su yana a kusurwoyi daidai zuwa ga yanke. Tsage-tsaren suna farawa daga wuri mafi zafi a saman rake, yawanci nesa da gefen yanke. Akwai ɗan tazara kaɗan tsakanin gefuna, sa'an nan kuma ya miƙe zuwa fuskar rake da sama akan fuskar gefuna; tsagawar zafin da ke kan fuskar rake da gefen gefe suna haɗuwa a ƙarshe, wanda ke haifar da guntuwar fuskar gefen yanke.
Matakan magance sun haɗa da: zabar kayan yankan da ke ɗauke da kayan tushe tantalum carbide (TAC); amfani da coolant daidai ko rashin amfani da shi; zabar kayan yankan-baki, da sauransu.
