Mathematical Model for Predicting Thrust Force in Drilling of GFRP Composites by Multifaceted Drill

T V Rajamurugan

doi:10.17485/ijst/2013/v6i10.2

Abstract

In this work an attempt has been made to develop empirical relationships to model thrust force in drilling of GFRP composites by Multifaceted drill bit. The empirical relationships were developed by response surface methodology incorporating above drilling parameters. The developed model can be effectively used to predict the thrust force in drilling of GFRP composites within the factors and their limits are studied. Keywords: Drilling, GFR-polyester Composites, Modelling, Thrust Force, Optimisation.

Highlights

In recent years, Glass Fiber Reinforced Plastic composites (GFRP) have been extensively used in variety of engineering applications varying from aerospace to automobile industries
Davim et al [1] carried out a study on milling of Glass fiber reinforced plastic composites manufactured by hand lay-up process
The major problem encountered during drilling of GFRP composites is delamination, which is occurred due to the thrust force developed during machining

Summary

Introduction

Glass Fiber Reinforced Plastic composites (GFRP) have been extensively used in variety of engineering applications varying from aerospace to automobile industries. Davim et al [1] carried out a study on milling of Glass fiber reinforced plastic composites manufactured by hand lay-up process They used two types of GFRP composites to evaluate the cutting parameters such as cutting velocity and tool feed rate. Claudin et al [7] conducted drilling experiments to determine suitable cutting tool for machining a low carbon steel using using different drill bits such as solid carbide drills, solid carbide modular drills, and indexable drills They modeled axial force and cutting torque as a function of diameter, rake angle, cutting velocity, and feed rate and they found out the methodology to determine the drill geometry effect. The predicted and measured values indicate that the developed model can be effectively used to predict the thrust force in the drilling of GFRP composites

Materials and Method

Response Surface Methodology

Modeling of Drilling Parameters using RSM

Results and Discussions

Effect of Drilling Parameters on Thrust Force

Conclusions