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    A New Methodology for Drilling of Carbonfiber Reinforced Polymer Composite (CFRP) Material
    (Korean Soc Precision Eng, 2024) Gultekin, Mehmet Sah; Isik, Birhan; Jun, Martin Byung-Guk
    Carbonfiber reinforced polymer composite (CFRP) materials are widely used in industries such as aerospace, medical equipment, and sport products. The angle between the cutting and fiber orientations significantly impacts surface quality during the machining process due to CFRP's pronounced anisotropy. The research of machinability of the fiber reinforced polymer composite (FRP) material strengthened by carbonfiber which has gained important engineering material lately will provide the utility of this material more functionally. The first way which comes to mind when the montage is mentioned is drilling of materials. In this research, the process of drilling the FRP material strengthened by carbonfiber which has such great importance have been done by producing that material in the shape of a plaque. The CFRP material (0/90 degrees fiber orientation) has been drilled at different cutting parameters and the surface roughness of the hole has been measured. The research endeavors in the field of drilling of composite materials have focused on optimization of the operating variables, tool geometry and theoretical modeling of the surface roughness. Simulated Annealing (SA) and Genetic Algorithm (GA) methods were used for optimization. According to the results of the experimental study and optimization technique, optimum cutting parameters such as cutting speed, feed, and tool geometry were obtained in order to have the best surface quality.
  • [ X ]
    Öğe
    Optimum Cutting Parameters for Carbon-Fiber-Reinforced Polymer Composites: A Synergistic Approach with Simulated Annealing and Genetic Algorithms in Drilling Processes
    (Mdpi, 2024) Isik, Birhan; Gultekin, Mehmet Sah; Fidan, Ismail; Jun, Martin Byung-Guk
    This paper presents a unique approach to generate a number of cutting knowledge blocks for the surface roughness analysis of the drilling process for carbon-fiber-reinforced polymer composite (CFRP) materials. The influence of drilling on the surface quality of woven CFRP materials was investigated experimentally. The CFRP material (0/90 degrees fiber orientation) was drilled at different cutting parameters and the surface roughness of the hole was measured. A set of tests was carried out using carbide drills of 8 mm in diameter at 50, 70, and 90 m/min cutting speeds, 2, 3, and 4 flute numbers, and 0.2, 0.3, and 0.4 mm/rev feed rates. The Simulated Annealing (SA) and Genetic Algorithm (GA) methods were used for optimization. Based on the experimental findings and optimization techniques applied, optimal cutting parameters were derived, which were subsequently adjusted to enhance surface quality. Overall, the cutting parameters are carefully optimized to achieve good surface roughness quality in the drilling of CFRP.