www.tjprc.org editor@tjprc.org OPTIMIZATION OF THE PROCESS PARAMETER IN DRILLING OF GFRP USING HSS DRILL K. KARTHIK 1 , A. MANIMARAN 2 , J. VEERENDRA RAYUDU 3 & DIVA SHARMA 4 1 Research Scholar, Department of Mechanical Engineering, Veltech Dr. RR & Dr. SR University Avadi, Chennai, Tamil Nadu, India 2 Professor, Department of Mechanical Engineering, Veltech Dr. RR & Dr. SR University, Avadi, Chennai, Tamil Nadu, India 3,4 UG Scholar, Department of Mechanical Engineering, Veltech Dr. RR & Dr. SR University Avadi, Chennai, Tamil Nadu, India ABSTRACT Fabrication and assembly of parts requires drill holes. The importance of better productivity of the Air craft parts while assembling of polymer composite to avoid the rejection process in drilling operation. The drilling operation of machining process is very important in production of aircraft components due to drilling operation 60% of rejection due to delamination. To minimize the rejection of components the selection of process parameters are required. Designs of experiments were conducted using milling machine and modelling analysis used by regression model and Taguchi technique. From the experimental results, feed rate is the most important parameter for delamination. KEYWORDS: Drill Holes, Design, Machine, Experiment and Parameters Received: Oct 07, 2017; Accepted: Oct 27, 2017; Published: Nov 22, 2017; Paper Id.: IJMPERDDEC201745 INTRODUCTION GFR widely used because they have excellent properties, such as high specific strength, high specific modulus of elasticity, light weight, good corrosion resistance, [1]. Delamination is a major problem in peel up and push out delamination [2]. Due to composite materials anisotropy and in homogeneity [3-4], posses 60% of rejection in GFRP during assembling, with aircraft component causes delamination [5]. The delamination factor , as shown in Figure 2.1, which can be defined as the ratio of the maximum diameter of the observed delamination zone to the nominal diameter of the drilled hole [6]. Figure 1: Scheme of Delamination Original Article International Journal of Mechanical and Production Engineering Research and Development (IJMPERD) ISSN (P): 2249-6890; ISSN (E): 2249-8001 Vol. 7, Issue 6, Dec 2017, 403-408 © TJPRC Pvt. Ltd