wabelane ngemiphumela yocwaningo oluningiliziwe olwenziwe yinkampani eqhathanisa amabha aqinile e-Inconel 625 namabha angenalutho e-Sanicro 60 amasha.
Ibanga lokuncintisana i-Inconel 625 (inombolo ye-UNS N06625) iyi-superalloy esekelwe ku-nickel (i-superalloy engamelana nokushisa) esetshenziswe ezimbonini zasolwandle, zenuzi nezinye kusukela ekuthuthukisweni kwayo kwasekuqaleni ngawo-1960 ngenxa yamandla ayo aphezulu kanye nokumelana nokushisa okuphezulu. . amazinga okushisa. Ikhulise ukuvikeleka ekugqwaleni kanye ne-oxidation.
I-Challenger entsha iyinduku engenalutho ye-Sanicro 60 (eyaziwa nangokuthi i-Alloy 625). Umongo omusha we-Sandvik ongenalutho uklanyelwe ukuhlinzeka ngokusebenza okungcono ezindaweni ezithile ezihlala i-Inconel 625, eyenziwe ngengxubevange enamandla ye-nickel-chromium ekwazi ukumelana namazinga okushisa aphakeme kakhulu ezindaweni ezine-chlorine. Imelana nokugqwala kwe-intergranular kanye nokugqwala kwengcindezi, ine-Pitting Resistance Equivalency (PRE) engaphezu kuka-48.
Inhloso yocwaningo kwakuwukuhlola ngokuningiliziwe nokuqhathanisa ukusebenza kahle kwe-Sanicro 60 (ububanzi = 72 mm) ne-Inconel 625 (ububanzi = 77 mm). Imibandela yokuhlola impilo yamathuluzi, ikhwalithi yendawo kanye nokulawulwa kwe-chip. Yini ezogqama: iresiphi entsha yebha engenalutho noma ibha yonke yendabuko?
Uhlelo lokuhlola e-Sandvik Coromant e-Milan, e-Italy luqukethe izingxenye ezintathu: ukuphenduka, ukubhola kanye nokuthepha.
I-MCM Horizontal Machining Centre (HMC) isetshenziselwa ukuhlola nokubhoboza. Ukushintsha imisebenzi kuzokwenziwa ku-Mazak Integrex Mach 2 kusetshenziswa izibambi ze-Capto ezine-coolant yangaphakathi.
Ukuphila kwamathuluzi kwahlaziywa ngokuhlola ukuguga kwamathuluzi ngesivinini esisuka ku-60 kuye ku-125 m/min kusetshenziswa i-S05F ingxubevange grade elungele ukuqedwa kancane kanye nokumaholoholo. Ukuze kulinganiswe ukusebenza kokuhlolwa ngakunye, ukususwa kwezinto ezibonakalayo ngesivinini ngasinye sokusika kukalwe ngemibandela emithathu eyinhloko:
Njengesinye isilinganiso sokusebenziseka kalula, ukwakheka kwe-chip kuyahlolwa futhi kuqashwe. Abahloli bahlole ukukhiqizwa kwe-chip ukuze kufakwe amajiyometri ahlukahlukene (i-Mazak Integrex 2 esetshenziswa nesibambi se-PCLNL kanye ne-CNMG120412SM S05F ejikayo efakayo) ngesivinini sokusika esingu-65 m/min.
Izinga lendawo engaphezulu yahlulelwa ngokwemibandela eqinile: ubulukhuni obungaphezulu bendawo yokusebenza akumele budlule u-Ra = 3.2 µm, Rz = 20 µm. Akufanele futhi angabi nokudlidliza, ukuguga, noma imiphetho eyakhelwe phezulu (i-BUE - ukwakheka kwezinto ezibonakalayo kumathuluzi okusika).
Ukuhlolwa kokumba kwenziwa ngokusika ama-disc amaningana endongeni efanayo engu-60 mm eyayisetshenziselwa ukuhlola ukuguqula. Imbobo eyenziwe ngomshini yabholwa ngokuhambisana ne-axis yenduku imizuzu engu-5 futhi ukuguga kwendawo yangemuva yethuluzi kwaqoshwa ngezikhathi ezithile.
Ukuhlolwa kokucutshungulwa kuhlola ukufaneleka kwe-Sanicro 60 engenalutho kanye ne-Inconel 625 eqinile kule nqubo ebalulekile. Zonke izimbobo ezidalwe ekuhlolweni kwangaphambilini kokumba zasetshenziswa futhi zasikwa ngomucu we-Coromant M6x1. Eziyisithupha zilayishwe esikhungweni semishini esivundlile se-MCM ukuze kuhlolwe izinketho zokulutha ezihlukene futhi kuqinisekiswe ukuthi zihlala ziqinile kuwo wonke umjikelezo wokulutha. Ngemva kokulutha, kala ububanzi bembobo ewumphumela nge-caliper.
Imiphumela yokuhlolwa ibingacacile: Amabha angenalutho e-Sanicro 60 asebenze kahle kakhulu kune-Inconel 625 eqinile enempilo ende kanye nokuqedwa okungcono kwendawo. Iphinde ifanise imigoqo eqinile ekwenzeni ama-chip, ukubhoboza, ukuthepha nokuthinta futhi yenza kahle ngokulinganayo kulezi zivivinyo.
Impilo yesevisi yamabha angenalutho ngesivinini esiphezulu yinde kakhulu kunemigoqo eqinile futhi ingaphezu kokuphindwe kathathu kunemigoqo eqinile ngesivinini sokusika esingu-140 m/min. Ngalesi sivinini esiphezulu, ibha eqinile ithathe imizuzu engu-5 kuphela, kuyilapho ibha engenalutho yayinempilo yethuluzi yemizuzu engu-16.
Impilo yamathuluzi e-Sanicro 60 yahlala izinzile njengoba isivinini sokusika sanda, futhi njengoba isivinini sanda sisuka ezikhathini ezingu-70 siye ku-140 m/min, ukuphila kwamathuluzi kwehle ngo-39% kuphela. Lokhu ukuphila kwamathuluzi okufushane ngo-86% kune-Inconel 625 ngoshintsho olufanayo lwejubane.
Indawo engenalutho ye-Sanicro 60 yenduku engenalutho ishelela kakhulu kunentonga eqinile ye-Inconel 625 engenalutho. Lokhu kuyinjongo yomibili (ukuhwashala kobuso akweqi u-Ra = 3.2 µm, Rz = 20 µm), futhi kukalwa ngonqenqema olubonakalayo, iminonjana yokudlidliza noma umonakalo ongaphezulu ngenxa yokwakheka kwama-chip.
I-Sanicro 60 hollow shank yenze okufanayo ne-Inconel 625 endala shank eqinile ekuhlolweni kokulutha futhi yabonisa imiphumela efanayo mayelana nokugqoka kweflank kanye nokwakheka kwe-chip okuphansi ngemva kokubhoboza.
Okutholakele kusekela ngokuqinile ukuthi izinduku ezingenalutho ziyindlela ethuthukisiwe esikhundleni sezinduku eziqinile. Impilo yamathuluzi yinde ngokuphindwe kathathu kunomncintiswano ngesivinini esikhulu sokusika. I-Sanicro 60 ayihlali nje kuphela isikhathi eside, futhi isebenza kahle kakhulu, isebenza kanzima futhi ishesha kuyilapho igcina ukwethembeka.
Ngokufika kwendawo yemakethe yomhlaba wonke enokuncintisana ecindezela abaqhubi bemishini ukuthi bathathe umbono wesikhathi eside wokutshalwa kwezimali kwabo kwezinto ezibonakalayo, ikhono le-Sanicro 60′s lokunciphisa ukuguga kumathuluzi okwenza imishini liyadingeka kulabo abafuna ukukhulisa amamajini nezintengo zomkhiqizo ezincintisana kakhulu. . kusho lukhulu.
Ngeke nje umshini uhlale isikhathi eside futhi ukushintshashintsha kuncishiswe, kodwa ukusebenzisa umgogodla ongenalutho kungadlula yonke inqubo yomshini, kuqede isidingo somgodi ophakathi nendawo, okungenzeka konga isikhathi esiningi nemali.