Application of response surface methodology for optimization of cutting parameters for surface roughness and tool wear in turning of aluminum casting semi-solid 7075

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Surasit Rawangwong
Romdorn Burapa
Watthanaphon Cheewawuttipong
Julaluk Rodjananugoon
Chatree Homkhiew
Apichon Thongmung Kamnerdwam


The objectives of this research were to determine the optimal cutting parameters and to predict the surface roughness and tool wear in turning process for aluminum casting semi-solid 7075 using the response surface methodology based on the Box-Behnken design. The cutting parameters investigated in this study included cutting speed, feed rate, and depth of cut. From the experiment, it was found that the main factors resulting in surface roughness were cutting speed, feed rate, and depth of cut. The optimal cutting conditions that provided for the surface roughness of 0.34 µm. were the cutting speed of 220 m. min–1, feed rate of 0.02 mm. rev–1, and depth of cut of 0.45 mm. Furthermore, the wear mechanism was taken place by cutting speed, feed rate and depth of cut. The pattern of wear was similar to cracking of mechanical fatigue, such as notch wear and crater wear.


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Rawangwong, S., Burapa, R., Cheewawuttipong, W., Rodjananugoon, J., Homkhiew, C., & Thongmung Kamnerdwam, A. (2020). Application of response surface methodology for optimization of cutting parameters for surface roughness and tool wear in turning of aluminum casting semi-solid 7075 . SNRU Journal of Science and Technology, 12(2), 164-173. Retrieved from
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Author Biography

Surasit Rawangwong, Materials Processing Technology Research Unit, Department of Industrial Engineering, Faculty of Engi neering, Rajamangala University of Technology Srivijaya, Songkhla, 90000 Thailand



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