39 KB184 KB24 KB200020242012Köglü, Ugurštevilka:2letnik:46str. 103-108ISSN:1580-2949COBISSID:928938URN:URN:NBN:SI:doc-R8Z0SYTWenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijealuminijeve zlitinealuminium alloyaluminium alloysdrillinghrapavostmechanical propertiesmehanske lastnostiroughnessvrtanjeInfluence of the process parameters and the mechanical properties of aluminum alloys on the burr height and the surface roughness in dry drilling| Vpliv parametrov procesa in mehanskih lastnosti aluminijevih zlitin na višino igle in hrapavost površine pri suhem vrtanju|In this paper, the effect of the mechanical properties of aluminum alloys, cutting speed, feed rate and the drill diameter on burr height and surface roughness of drilling holes were investigated, using the Taguchi method. Al-2024, Al-7075 and Al-7050 were selected as the workpiece materials for experiments. The analysis of variance and signal-to-noise ratio were employed to analyze the effect of the drilling parameters. The results of the statistical analysis indicated that feed rate and cutting speed minimize significantly both the height of the exit burrs and the surface roughness. Moreover, the mechanical properties of the workpieces are different influential factors on both responsesRaziskan je vpliv mehanskih lastnosti aluminijevih zlitin, hitrosti rezanja in podajanja ter premera svedra na višino igle in hrapavost površine vrtane površine z uporabo Taguchi metode. Za preizkuse so bile izbrane zlitine Al-2024, Al-7075 in Al-7050. Analize variance in intenzitete signal-ozadje so bile uporabljene za določitev vpliva parametrov vrtanja. Rezultati statistične analize so pokazali, da hitrosti podajanja in rezanja zmanjšujeta višino izhodne igle in hrapavost površine. Tudi mehanske lastnosti obdelovanca imajo različen vpliv na oba odgovoraTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije