kwabelwane ngeziphumo zophononongo oluneenkcukacha olwenziwe yinkampani ethelekisa imivalo eqinileyo ye-Inconel 625 kunye neSanicro 60 imivalo engenanto.
Ibakala lokukhuphisana i-Inconel 625 (inombolo ye-UNS i-N06625) yi-nickel-based superalloy (i-heat resistant superalloy) esetyenziswe kulwandle, inyukliya kunye namanye amashishini ukususela ekuphuhlisweni kwayo kwangaphambili kwi-1960s ngenxa yeempawu zayo eziphezulu kunye nokuchasana nokushisa okuphezulu. .amaqondo obushushu.Kuye kwanda ukhuseleko kwi-corrosion kunye ne-oxidation.
I-Challenge entsha yintlukwano ye-hollow-rod ye-Sanicro 60 (eyaziwa ngokuba yi-Alloy 625).Undoqo omtsha we-Sandvik ovulekileyo uyilelwe ukunika ukusebenza okungcono kwiindawo ezithile ezihlala yi-Inconel 625, eyenziwe nge-alloy ye-nickel-chromium ephezulu ekwazi ukumelana nobushushu obuphezulu kakhulu kwiindawo ezineklorini.Ukumelana ne-intergranular corrosion kunye noxinzelelo lwe-corrosion, ine-Pitting Resistance Equivalency (PRE) enkulu kune-48.
Injongo yophando yayikukuvavanya ngokubanzi kunye nokuthelekisa ukunyanzeliswa kwe-Sanicro 60 (ububanzi = 72 mm) kunye ne-Inconel 625 (ububanzi = 77 mm).Iikhrayitheriya zovavanyo bubomi besixhobo, umgangatho womphezulu kunye nolawulo lwetshiphu.Yintoni eza kugqama: iresiphi entsha yebha enomgongxo okanye ibha epheleleyo yemveli?
Inkqubo yovavanyo eSandvik Coromant eMilan, eItali inamacandelo amathathu: ukujika, ukugrumba kunye nokucofa.
I-MCM Horizontal Machining Centre (HMC) isetyenziselwa ukubhola kunye nokuvavanya iimvavanyo.Imisebenzi yokuguqula iya kwenziwa kwiMazak Integrex Mach 2 kusetyenziswa iiCapto holders ezinesipholisi sangaphakathi.
Ubomi besixhobo buvavanywe ngokuvavanya ukunxiba kwesixhobo kwisantya sokusika ukusuka kwi-60 ukuya kwi-125 m/min usebenzisa ibakala le-alloy le-S05F elilungele ukugqiba isiqingatha kunye nokurhabaxa.Ukulinganisa ukusebenza kovavanyo ngalunye, ukususwa kwezinto ngesantya sokusika kuye kwalinganiswa ngeendlela ezintathu eziphambili:
Njengomnye umlinganiselo wobuchule, ukubunjwa kwe-chip kuyavavanywa kwaye kubekwe iliso.Abavavanyi bavavanya ukuveliswa kweetshiphu zokufakelwa kweejiyometri ezahlukeneyo (i-Mazak Integrex 2 esetyenziswa nesibambi se-PCLNL kunye ne-CNMG120412SM S05F yokujika ifakela) ngesantya sokusika esingama-65 m/min.
Umgangatho womphezulu ujongwa ngokweenqobo ezingqongqo: uburhabaxa bomphezulu besixhobo sokusebenza akufanele budlule iRa = 3.2 µm, Rz = 20 µm.Kufuneka kwakhona bakhululeke kwi-vibration, ukunxiba, okanye imiphetho eyakhiweyo (i-BUE - i-material buildup kwizixhobo zokusika).
Iimvavanyo zokugaya zenziwa ngokusika iidiski ezininzi ukusuka kwintonga enye ye-60 mm eyayisetyenziselwa iimvavanyo zokuguqula.Umngxuma owenziwe ngomatshini udityaniswe ngokuhambelana ne-axis yentonga yemizuzu emi-5 kwaye ukunxiba kwendawo yangasemva yesixhobo kwabhalwa ngamaxesha athile.
Uvavanyo lwentambo luvavanya ukufaneleka kwe-Sanicro 60 engenanto kunye ne-Inconel 625 eqinileyo kule nkqubo ibalulekileyo.Yonke imingxuma eyenziwe kwimifuniselo yokugrumba yangaphambili yasetyenziswa kwaye yasikwa ngempompo yentambo yeCoromant M6x1.Ezintandathu zalayishwa kwiziko lomatshini elithe tye le-MCM ukuze balinge iindlela ezahlukeneyo zokuthunga kunye nokuqinisekisa ukuba zihlala ziqinile kuwo wonke umjikelo wokuthunga.Emva kokudibanisa, linganisa ububanzi bomngxuma ophumelayo kunye ne-caliper.
Iziphumo zovavanyo bezingathandabuzi: iSanicro 60 imivalo eholoholo igqwese i-Inconel 625 eyomeleleyo enobomi obude kunye nokugqitywa komphezulu ongcono.Ikwangqamane nemivalo eyomeleleyo ekwenzeni itshiphu, ukugrumba, ukucofa kunye nokucofa kwaye iqhube kakuhle ngokulinganayo kolu vavanyo.
Ubomi benkonzo yeebhari ezingenanto kwizantya eziphezulu kakhulu zide kakhulu kunemivalo eqinile kwaye ngaphezu kwamaxesha amathathu ubude kunemivalo eqinile kwisantya sokusika i-140 m / min.Ngesantya esiphezulu, ibha eqinileyo yahlala imizuzu emi-5 kuphela, ngelixa ibha engenanto yayinobomi besixhobo semizuzu eyi-16.
Ubomi besixhobo se-Sanicro 60 buhlala buzinzile njengoko isantya sokusika sanda, kwaye njengoko isantya senyuka ukusuka kumaxesha angama-70 ukuya kwi-140 m / min, ubomi besixhobo bunciphe kuphela ngama-39%.Le yi-86% yobomi obufutshane besixhobo kune-Inconel 625 yokutshintsha okufanayo kwisantya.
Umphezulu we-Sanicro 60 intonga engenanto igudileyo kakhulu kunentonga eqinileyo ye-Inconel 625 engenanto.Le njongo zombini (uburhabaxa bomphezulu abudluli i-Ra = 3.2 µm, Rz = 20 µm), kwaye ilinganiswa ngongqameko olubonakalayo, imikhondo yokungcangcazela okanye umonakalo kumphezulu ngenxa yokubunjwa kweetships.
I-Sanicro 60 hollow shank isebenze ngendlela efanayo ne-Inconel 625 eqinileyo shank endala kuvavanyo lokuthunga kwaye ibonise iziphumo ezifanayo malunga nokunxitywa kweflanki kunye nokwakheka kwetshiphu ephantsi emva kokugrumba.
Izinto ezifunyanisiweyo zixhasa ngamandla ukuba iirods ezigobileyo ziyindlela ephuculweyo kuneentonga eziqinileyo.Ubomi besixhobo bubude obuphindwe kathathu kunokhuphiswano ngesantya esiphezulu sokusika.I-Sanicro 60 ayihlali nje ixesha elide, iyasebenza ngakumbi, isebenza nzima kwaye ikhawuleza ngelixa igcina ukuthembeka.
Ngokufika kwendawo yentengiso yehlabathi ekhuphisanayo etyhala abaqhubi boomatshini ukuba bathathe umbono wexesha elide wotyalo-mali lwabo lwezinto eziphathekayo, amandla e-Sanicro 60 okunciphisa ukunxitywa kwezixhobo zomatshini kuyimfuneko kwabo bafuna ukwandisa imida kunye namaxabiso emveliso akhuphisanayo ngakumbi. .ithetha lukhulu.
Umatshini awuyi kuhlala ixesha elide kwaye utshintsho luya kuncitshiswa, kodwa ukusebenzisa isiseko esingenanto kunokudlula yonke inkqubo yomatshini, ukuphelisa isidingo somngxuma ophakathi, okunokugcina ixesha elininzi kunye nemali.