Thrust, Torque Analyses and Optimization in Microdrilling of GFRP Using Full Factorial Design Integrated CNSGA-II Algorithm

摘要

Glass fibre reinforced plastics (GFRP) are having good weight to strength ratio, so they have wide range of application for many purposes. Micro drilling of GFRP produces de-lamination in it. So it is always needed to optimize the process parameters by minimizing thrust force and torque. The process parameters and response parameters values are used here for analysing and optimizing the micro drilling of GFRP. The introduction of peck micro drilling in lieu of direct micro drilling was found to be responsible for lower value of torque and thrust force. The optimized result of thrust force and torque was found to be 40000 and 5 of rpm and feed respectively for both direct and peck type of micro drilling.