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CSME 2021/08
Volume 42 No.4
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403-412
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Machinability of the AISI M2 High-Speed Steel using CBN Insert
Mohammad Rafighi a, Osman Özenç b, Mehmet Tuncay Kaya b, Mustafa Özdemir c and Hamza Kemal Akyıldız d
aDepartment of Mechanical Engineering, University of Turkish Aeronautical Association, Ankara, Turkey.
bDepartment of Mechanical Engineering, Yozgat Bozok University, Yozgat, Turkey.
cDepartment of Machine and Metal Technology, Yozgat Bozok University, Yozgat, Turkey.
dDepartment of Mechanical Engineering, Yozgat Bozok University, Yozgat, Turkey.
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Abstract:
In this experimental study, the impact of machining parameters on surface roughness and cutting force components was investigated. The finish hard turning was carried out on the AISI M2 high-speed steel using cubic boron nitride under dry cutting conditions. Hard turning experiments were performed employing Taguchi L9 orthogonal array with three input and two output parameters. This experiment was performed using constant cutting speed (150 m·min-1), three tool nose radius (0.2, 0.4, 0.8 mm), three feed rates (0.025, 0.05, 0.075 mm·rev-1) and three depths of cut (0.05, 0.10, 0.15 mm). The analysis of variance was employed to obtain the most important machining variables. Results showed that surface roughness is primarily influenced by feed rate. Furthermore, the cutting depth mainly affected all components of cutting force, namely axial force, tangential force, and radial force. However, the nose radius was a dominant factor in the radial force. Finally, the regression analysis was performed to obtain the mathematical model between input parameters and output variables. Based on the mathematical model a strong agreement was reached between predicted and empirical values.
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Keywords: AISI M2 high-speed steel, Material processing, Surface roughness, Cutting force components.
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©
2021
CSME , ISSN 0257-9731
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