Abstract

Polymer–matrix composites are very popular due to their low cost and simple fabrication methods. While techniques and methodologies for composites design are emerging, the knowledge and understanding of machining issues lag far behind. The objective of the work is to analyze the influence of machining parameters on the material characteristics of hybrid-composite pipes. Turning operation was carried out as per the design of experiments by central composite design in hybrid polymer composite pipe made of carbon fiber and Aramid fiber. Based on the experimental results, regression analysis was conducted to determine the input–output relationships of the process. A mathematical model is developed, and the responses are predicted. The effects of each process parameter on the response were analyzed using response surface methodology. The process parameters were then optimized using genetic algorithm to yield minimum cutting force and minimum surface roughness (Ra).

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