20 KB396 KB19 KB200020242001Grešovnik, FerdinandHrnčič, SonjaHrnčič, VladoRibič, PeterVeršnik, FrancVodeb, Dušanletnik:35številka:55 stranistr. 271-275ISSN:1580-2949COBISSID:4767515URN:URN:NBN:SI:doc-MM9KM901slInštitut za kovinske materiale in tehnologijeMateriali in tehnologijeavtomatizacijainduktivno kaljenjeindustrija avtomobilskakaljenje induktivnonormaliziranjeobročipreiskava materialavenci zobatizobati venecTermomehanska obdelava zobatih vencev| A termo-mechanical heat treatment of starter ring gears|The program of starter ring gears is a highly specialized program for manufacture of rings and ring gears for automotive industry. The manufacture runs in technological phases which are today too expensive, while the process stability is still not within the limits as required by automotive industry. Introduction of high-temperature thermomechanical treatment (VTTMO) for gear rims improves their mechanical properties Rm, A, Rp0,2, and it simultaneously essentially reduces residual stresses. Further, we will try to establish the influence of steel microalloying elements upon a reduction of gear rim deformations. The major technological problem lies in deformations. In our research project we found the real cause of problems, technical and technological solution, and with a thermomechanical treatment and induction heating we reduced energy consumption, optimized technology for robotized production of 1,900.000 starter ring gearsProgram zobatih vencev je visokospecializiran program za izdelavo obročev in zobatih vencev za avtomobilsko industrijo. Izdelava poteka po tehnoloških fazah, ki so v tem trenutku predrage, stabilnost procesa pa ni v mejah, ki jih zahteva avtomobilska industrija. Uvedba visokotemperaturne termomehanske obdelave (VTTMO) zobatih vencev izboljšuje mehanske lastnosti vencev Rm, A, Rp0.2, hkrati pa bistveno vpliva na znižanje zaostalih napetosti. V nadaljevanju naloge bomo skušali ugotoviti vpliv mikrolegiranosti jekla na povišanje mehanskih lastnosti in žilavosti ter vpliv legirnih elementov na zmanjševanje deformacij zobatih vencev. Največji tehnološki problem predstavljajo deformacije. Z raziskovalnim projektom smo odkrili pravi vzrok problemov, poiskali tehnično in tehnološko rešitev, s termomehansko obdelavo in indukcijskim ogrevanjem smo znižali energetsko porabo, optimizirali tehnologijo za robotizirano proizvodnjo 1.900.000 vencevTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije