Aminnudin Aminnudin, Redyarsa Dharma Bintara, Farhan Bayu Zakaria
The metalworking process is often used to make a product that is processed from the metal. One of the processes is the machining process using a lathe. The working principle of a lathe is to rotate a cylindrical workpiece on the X axis and use a tool to cut or reduce its profile. The use of a mist cooling system with a mixture of graphite-talc and vegetable oil as a lubricant. This cooling technique is used to extend tool life and improve the surface quality of the resulting workpiece. This study aims to analyze the parameters of the mist cooling system including pressure, angle, and distance which are varied to tool wear and surface roughness of ST 60 steel in the turning process. The research method used is experimental which is then analyzed using the Taguchi method. The mist cooling system parameters uses pressure variations of 0.5 bar, 1 bar, 1.5 bar, angles 0°, 45°, 90°, and distances of 2 cm, 4 cm, and 6 cm. The results showed that pressure and angle had a significant effect on tool wear and surface roughness of ST 60 steel. The results of the analysis of tool wear showed that the optimal variation of 1 bar of pressure, angle 90°, and 6 cm distance resulted in tool wear of 0.0561 mm. The results of the analysis of surface roughness obtained an optimal variation of 0.5 bar pressure, 90° angle, and 9 cm of distance resulting in a surface roughness (Ra) of 0.0036 mm. © 2024 Author(s).
Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Negeri Malang, Malang, Indonesia