vakagovana zvakabuda muongororo yakadzama yakaitwa nekambani iyi vachienzanisa Inconel 625 solid bars neSanico 60 hollow bars itsva.
Inconel 625 yemhando yepamusoro (nhamba yeUNS N06625) isimbi inodzivirira kupisa (superalloy) inoshandiswa muindasitiri yegungwa, yenyukireya nedzimwe nzvimbo kubva pakugadzirwa kwayo kwekutanga muma1960 nekuda kwesimba rayo guru uye kuramba kwayo kupisa kwakanyanya. Ine dziviriro yakawedzerwa kubva mukuora uye oxidation.
Challenger itsva imhando yeSanicro 60 (inozivikanwawo seAlloy 625). Hunhu hutsva hweSandvik hwakagadzirwa kuti huite basa riri nani munzvimbo dzakati wandei dzine Inconel 625, yakagadzirwa ne nickel-chromium alloy ine simba guru inogona kutsungirira tembiricha dzakanyanya munzvimbo dzine chlorine. Inodzivirira ngura yepakati pegranular uye ngura yestress, ine Pitting Resistance Equivalency (PRE) inopfuura 48.
Chinangwa chechidzidzo ichi chaive chekuongorora zvakakwana uye kuenzanisa kugona kweSanicro 60 (dhayamita = 72 mm) neInconel 625 (dhayamita = 77 mm). Zvinodiwa pakuongorora ndezvehupenyu hwechishandiso, mhando yepamusoro uye kudzora chips. Chii chichaonekwa: resipi itsva yebhawa risina chinhu kana kuti bhawa rese rechinyakare?
Chirongwa chekuongorora paSandvik Coromant muMilan, Italy chine zvikamu zvitatu: kutenderedza, kuboora nekukwenya.
MCM Horizontal Machining Center (HMC) inoshandiswa pakuongorora kubhoorwa nekudhonza. Mabasa ekutenderedza achaitwa paMazak Integrex Mach 2 uchishandisa Capto holders ine internal coolant.
Hupenyu hwezvishandiso hwakaongororwa nekuongorora kusakara kwezvishandiso pakumhanya kwekucheka kuri pakati pe60 kusvika 125 m/min uchishandisa giredhi reS05F alloy rakakodzera kupedzisa nekugadzira. Kuti uedze mashandiro ebvunzo yega yega, kubviswa kwezvinhu pakukurumidza kwekucheka kwakayerwa nematanho matatu makuru:
Seimwe nzira yekuyera mashandiro echishandiso, kuumbwa kwechip kunoongororwa uye kunotariswa. Vayedzi vakaongorora kugadzirwa kwechip kuti vaone ma insertions e geometries akasiyana-siyana (Mazak Integrex 2 inoshandiswa nePCLNL holder uye CNMG120412SM S05F turning insert) nekumhanya kwekucheka kwe65 m/min.
Hunhu hwepamusoro hunotongwa zvichienderana nezvinodiwa zvakasimba: kuomarara kwepamusoro pechinhu chebasa hakufanirwe kudarika Ra = 3.2 µm, Rz = 20 µm. Dzinofanirawo kunge dzisina kudedera, kusakara, kana mipendero yakavakwa (BUE - kuunganidza zvinhu pazvishandiso zvekucheka).
Miedzo yekuboorera yakaitwa nekucheka madhisiki akati wandei kubva patsvimbo imwecheteyo ye60 mm yakashandiswa pakuedza kutenderedza. Gomba rakacherwa rakatenderedzwa netambo kwemaminitsi mashanu uye kupera kwenzvimbo yekumashure kwechishandiso kwainyorwa nguva nenguva.
Kuyedzwa kweshinda kunoongorora kukodzera kweSanicro 60 ine hollow uye Inconel 625 yakasimba pakuita basa iri rinokosha. Maburi ese akagadzirwa mukuyedza kwekuboorera kwekare akashandiswa uye akachekwa neCoromant M6x1 thread tap. Matanhatu akaiswa munzvimbo yeMCM horizontal machining kuti ayedze nzira dzakasiyana dzeshinda uye ave nechokwadi chekuti dzinoramba dzakasimba mukati menguva yese yeshinda. Mushure meshinda, yera dhayamita yegomba rinobuda necaliper.
Mhedzisiro yebvunzo yakanga yakajeka: Sanicro 60 hollow bars yakashanda zvakanaka kupfuura Inconel 625 yakasimba ine hupenyu hwakareba uye inopedza zviri nani pamusoro. Yakafananidzawo solid bars mukugadzira chips, kuboora, kugokora nekugokora uye yakaita zvakanaka zvakaenzana mubvunzo idzi.
Nguva yekushanda kwembariro dzisina chinhu pakumhanya kwakanyanya yakareba zvakanyanya kupfuura mbariro dzakasimba uye yakareba kanopfuura katatu kupfuura mbariro dzakasimba pakumhanya kwe140 m/min. Pakumhanya uku kwakanyanya, mbariro dzakasimba dzaingotora maminetsi mashanu chete, nepo mbariro dzisina chinhu dzaiva nehupenyu hwechishandiso hwemaminitsi gumi nematanhatu.
Hupenyu hwezvishandiso zveSanicro 60 hwakaramba hwakagadzikana sezvo kumhanya kwekucheka kwakawedzera, uye sezvo kumhanya kwacho kwakawedzera kubva ka70 kusvika 140 m/min, hupenyu hwezvishandiso hwakaderera ne39% chete. Uku kupfupika kwehupenyu hwezvishandiso ne86% pane Inconel 625 nekuda kwekuchinja kwakafanana kwekumhanya.
Pamusoro pechinhu chisina chinhu cheSanicro 60 chakapfava kupfuura chechinhu chisina chinhu cheInconel 625 chakapfava. Izvi zvose zviri zviviri zvine hunhu hwakasiyana (kuoma kwenzvimbo hakupfuuri Ra = 3.2 µm, Rz = 20 µm), uye zvinoyerwa nemucheto wekuona, zviratidzo zvekudedera kana kukuvara kwenzvimbo nekuda kwekuumbwa kwemachipisi.
Shank yeSanicro 60 hollow shank yakaita zvakafanana neshank yekare yeInconel 625 solid shank mukuyedza kweshinda uye yakaratidza mhedzisiro yakafanana maererano nekusakara kweparutivi uye kuumbwa kwemachipisi kwakaderera mushure mekuboorwa.
Zvakawanikwa zvinotsigira zvakasimba kuti tsvimbo dzisina chinhu dzakagadzirwa zvakanaka dzinotsiva tsvimbo dzakasimba. Nguva yekushandisa zvishandiso yakareba katatu kupfuura makwikwi pakucheka nekukurumidza. Sanico 60 haingogari kwenguva yakareba chete, asiwo inoshanda zvakanyanya, ichishanda nesimba uye nekukurumidza uku ichichengetedza kuvimbika.
Nekuuya kwemusika wepasi rose une makwikwi uri kukurudzira vashandisi vemichina kuti vatarise kwenguva refu mari yavanoshandisa mumichina, kugona kweSancro 60 kuderedza kusakara kwezvishandiso zvemichina kwakakosha kune avo vari kutsvaga kuwedzera mari uye mitengo yezvigadzirwa inokwikwidzana. Zvinoreva zvakawanda.
Muchina uyu haungogari kwenguva refu chete uye kuchinjana kwechinhu kuchaderedzwa, asi kushandisa core ine hollow kunogona kunzvenga maitiro ese ekugadzira, zvichibvisa kudiwa kwegomba repakati, zvichigona kuchengetedza nguva nemari yakawanda.