237 KB33 KB200020242014Bayramoglu, MelihGeren, NecdetKabakli, Evrenštevilka:1letnik:48str. 91-98COBISSID:1032362ISSN:1580-2949URN:URN:NBN:SI:doc-VBX46GPFenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijecilindričnostcylindricityhrapavost površineoptimizacijaoptimizationperpendicularitypravokotnostsurface roughnessTaguchi methodTaguchijeva metodaU-drillsU-svedriEvaluation of the surface roughness and geometric accuracies in a drilling process using the Taguchi analysis| Ocena hrapavosti površine in geometrijske natančnosti postopka vrtanja z uporabo Taguchijeve analize|This paper presents an evaluation of the surface roughness and geometric accuracies in drilling operations performed using U-drills without a pilot hole. The surface roughness, perpendicularity and cylindricity were used as the response parameters for evaluating the effects of the feed rate, peripheral speed, hole diameter and hole depth. The performance characteristics were measured and various signal-noise ratios were calculated with the Taguchi method. An analysis of variance (ANOVA) was performed and the effects of the controlled factors at different levels were analyzed to identify the optimum drilling conditions for U-drills. The results of this study will allow an operator to select the optimum parameter values for U-drills to reduce the manufacturing costsČlanek predstavlja oceno hrapavosti površine in geometrijske natančnosti operacije vrtanja, izvršene z U-svedrom brez vodilne izvrtine. Hrapavost površine, navpičnost in cilindričnost so bile uporabljene kot odgovarjajoči parametri za oceno odvzema, obodne hitrosti, premera in globine luknje. Izmerjene so bile značilnosti delovanja, razmerja signalov hrupa pa so bila izračunana z uporabo Taguchijeve metode. Izvršena je bila analiza variance (ANOVA) in analizirani kontrolni faktorji vpliva na različnih nivojih, da bi ugotovili optimalne razmere vrtanja za U-svedre. Rezultati te študije bodo omogočili operaterju, da bo izbral optimalne vrednosti parametrov za U-sveder in za zmanjšanje proizvodnih stroškovTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije