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Machining of Unidirectional Glass Fibre Reinforced Polymers (UD-GFRP) Composites

Rajesh Kumar Verma1 , Saurav Datta2, and Pradip Kumar Pal1
1.Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India.
2.Department of Mechanical Engineering, National Institute of Technology, Rourkela 769008, India.

Abstract—The purpose of the present work is to highlights the research on GFRP composites and machining problems faced out by the manufactures. Fiber glass reinforced plastic, commonly known as fiberglass, was developed commercially during World War II. In 21st century, GFRP have been successfully substituted the traditional engineering materials and widely used in transportation, offshore and marine, spacecraft structures require high specific stiffness and strength but machining of GFRP is significantly different from conventional metals because they are isotropic and non homogeneity in nature which consist of distinctly different phases, so that their machining operation is characterized by uncontrolled intermittent fibre fracture causing oscillating cutting forces and critical bending stresses, poor surface finish in terms of fuzzing due to diverse/ crushed fibre. It is not easy for a manufacturer to obtain quantitative and consistent measures but it has been mainly assessed by three parameters including tool wear or tool life, cutting forces or power consumption and better surface finish. Therefore good machinability means less tool wear, low cutting forces and good surface finish. Factors such cutting parameters, vibration, tool wear and fiber orientations should be taken very carefully during machining to obtain favorable environment for best quality as well as productivity.

Index Terms—Bending stresses, Isotropic, Surface finish, Tool wear, FRP

Cite: Rajesh Kumar Verma, Saurav Datta, and Pradip Kumar Pal, "Machining of Unidirectional Glass Fibre Reinforced Polymers (UD-GFRP) Composites," International Journal of Mechanical Engineering and Robotics Research, Vol.4, No. 2, pp. 49-59, April 2015.