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The vibration response of material removal process in milling has a significant effect on surface roughness of the product with respect to cutting tool coating. Recent requirements for improving of surface roughness have heightened the need for milling with coated cutting tools. The main objective of this study is to experimentally investigate the role of vibration behavior of cutting tool coated with titanium aluminum nitride (TiAlN) on an AISI 4140 alloy steel workpiece surface roughness. The vibration data from workpiece were recorded for three milling cutting tools with tool diameters of 10, 12, and 16  and for each diameter different coating depth of 0.0, 2.0, 3.0, and 5.0  (microns) were used respectively. Vibration signals of workpiece during milling process in two directions were collected and a roughness tester was used to measure the surface roughness of workpiece. The results showed that induced vibration has a significant effect on surface roughness of workpiece. It has been observed that the maximum surface roughness average was obtained for 16  tool diameters with coated depth of 5.0  while the minimum surface roughness average was obtained for 10 mm tool diameters with coated depth of 3.0 . Surface roughness can be improved by reduction of the intensity of sources of vibration by using appropriate cutting tool coating depth.

AISI 4140 Islah Çeliğinin TiAlN Kaplı Frezelerle İşlenmesi Sırasında Oluşan Yüzey Pürüzlülüğü ve Titreşiminin Deneysel Olarak İncelenmesi