STUDY AND OPTIMIZATION OF DRILLING PARAMETERS IN GFRP
Author(s):
N.SURESH, S.RAJEASHKUMAR, T.VENGATESAN, K.PRAKASH
Keywords:
GFRP Composite, Speed, Feed rate, Drill size, Point angle, DEFORM 3D,Thrust force and Torque
Abstract
Glass fiber reinforced plastics are finding increased applications in various engineering field.GFRP composite materials offer superior properties such as high specific strength, high specific modulus of elasticity, high damping capacity, good corrosion resistanceexcellent fatigue resistance, good dimensional stability and a low coefficient of thermal expansion.In these fields, the drilling of GRFP composite materials is generally needed for the joining of composite structures. However, drilling of GFRP implies coping with problems that are not encountered when machining other conventional materials. The drilling of GFRP composite materials may lead to widespread damage and may cause many problems, such as fiber delamination, fiber breakage, fiber pull out, stress concentration, thermal damage, micro cracking, etc. This work has involved the determination of different factors affecting the hole quality and cause of delamination in a GFRP. The various process parameters like different twist drill bits of different point angle and different materials have been taken. The thrust forces and torque were measured for different machining conditions. By the use of DEFORM 3D software we simulate drilling process and we measure thrust forces and torque on varying the feed rate, speed, point angle.By the results optimal value of thrust force and torque are optained.
Article Details
Unique Paper ID: 142765

Publication Volume & Issue: Volume 2, Issue 6

Page(s): 177 - 181
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