2009 Cilt 14 Sayı 1

Permanent URI for this collectionhttps://hdl.handle.net/11452/11498

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    Surface roughness evaluation when machining carbon steel with ceramic cutting tools
    (Uludağ Üniversitesi, 2009) Motorcu, Ali Rıza; Teknik Bilimler Meslek Yüksekokulu
    The response surface methodology was adopted to investigate the effects of main cutting parameters such as cutting speed, feed rate, and depth of cut on the surface roughness when turning AISI 1050 carbon steel. Machining tests were carried out with uncoated ceramic (KY1615) and coated ceramic cutting tools (KY4400). Optimal machining conditions for the desired surface finish were determined. The adequacy of the second order developed model was analyzed by using analysis of variance. The experimental results indicated that the feed rate was the dominant factor, followed by the depth of cut. The cutting speed showed the minimal effect on the surface roughness. It could be seen that the KY1615 tool produced a better surface roughness than the KY4400 tool. It was shown that average surface roughness’ of Ra values were about 2.515 μm, 2.984 μm for the KY1615, KY4400 cutting tools, respectively. Furthermore, the analysis of variance for the second-order model indicated that squares terms were significant on the roughness, but interaction terms of cutting parameters were insignificant for both cutting tools.