Faculty of Mechanical Engineering, Lj. (FSLJ)
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Določitev obdelovalnosti ležajnega jekla 100Cr6 s kriogenim odrezavanjem : diplomska naloga univerzitetnega študijaBiček, MatejV zadnjih letih v strojni industriji močno narašča uporaba visoko kakovostnih materialov, ki imajo izboljšane trdnostne lastnosti in visoko temperaturno obstojnost. Z vnašanjem legiranih elementov se ... te lastnosti izboljšujejo, obenem pa se zaradi zahtev po visokih produktivnostih neizogibno povečujejo toplotne in mehanske obremenitve pri obdelavi, kar negativno vpliva na obdelovalnost in integriteto obdelane površine (obstojnost rezalnih orodij, hrapavost obdelane površine, zaostale napetosti v obdelovancu, idr.). Kot alternativa konvencionalnim načinom odrezavanja, je v diplomi obravnavan proces kriogenega odrezavanja. Delo je eksperimentalno analitične narave. Izvedeni so bili preliminarni eksperimenti struženja toplotno obdelane in neobdelane ležajne litine 100Cr6, ter določena tehnološka okna obdelav po standardu "tool-material-pair," ki temelji na francoskem standardu NF E 66- 520-6. Pripravljena je bila detajlna eksperimentalna matrika, ki je temeljila za kotrolirane eksperimente kriogene in konvencionalne obdelave. Pri eksperimentih struženja so bile merjene sile pri odrezavanju, obraba orodja, hrapavost obdelane površine in analizirane oblike tvorjenih odrezkov. Posredno so bile izvedene meritve integritete obdelane površine (mikro trdota, metalografska analiza (optični mikroskop + elektronski), vsebnost zadržanega avstenita in zaostale napetosti). Kot nadgradnja je bila izvedena optimizacija obdelovalnih parametrov in narejene meritve obstojnosti karbidnih in CBN orodij. Z omenjenimi eksperimenti je prikazan vpliv posameznega tipa hlajenja odrezovalnega procesa na obdelovalnostno produktivnostne karakteristike procesa.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Biček], 2011Language - slovenianCOBISS.SI-ID - 12089883
Author
Biček, Matej
Other authors
Kopač, Janez, 1949- |
Pušavec, Franci
Topics
diplomske naloge |
ležajno jeklo 100Cr6 |
odrezavanje |
tehnološka okna |
obstojnosti orodja |
integriteta površine |
bearing steel 100Cr6 |
tool-material pairs |
tool lifetime experiments |
surface integrity
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U 0000005989 IN: 40005989 U 5989 IN: 40005989 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Biček, Matej | |
Kopač, Janez, 1949- | 06883 |
Pušavec, Franci | 26559 |
Source: Personal bibliographies
and: SICRIS
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