Experimental Investigations Towards Hole Accuracy In Micro-Drilling Of Carbon Fibre Reinforced Polymer Material

Md Nasir, Nur Syuhada and Ab Wahab, Norfariza and Sofian, Badri and Raja Abdullah, Raja Izamshah and Sasahara, Hiroyuki (2021) Experimental Investigations Towards Hole Accuracy In Micro-Drilling Of Carbon Fibre Reinforced Polymer Material. Manufacturing Technology, 21 (3). pp. 381-386. ISSN 1213-2489

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Abstract

Nowadays, Carbon Fibre Reinforced Polymer (CFRP) materials are extensively used as substitutes for metal parts in aircraft and automotive components since they are lighter in weight. However, micro drilling CFRP materials during the assembly process poses various challenges such as low hole accuracy and delamination. Hence, an experiment has been executed to investigate the influence of micro drilling parameters towards hole accuracy. The spindle speed and feed rate are the machining parameters that have been considered in this experiment. Three different optimum parameters have been obtained from previous experiments, involving the spindle speed combinations of 8,000, 10,762 and 11,017 min-1 with a feed rate of 0.01 mm/rev. A drill bit with a diameter of 0.9 mm is used to drill approximately 300 holes. It has been revealed that the combination of the spindle speed of 11,017 min-1 and feed rate of 0.01 mm/rev produce high hole accuracy at the 2nd hole compared to the 300th hole due to the presence of uncut fibres at the 300th hole which have reduced the hole area. Hence, outcome of this research could provide the benefit to the industries in term of manufacturing time and materials expenditure

Item Type:	Article
Uncontrolled Keywords:	CFRP, Delamination, Hole Accuracy, Micro-drill, Uncut Fibre
Divisions:	Faculty of Mechanical and Manufacturing Engineering Technology > Department of Manufacturing Engineering Technology
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	14 Mar 2022 12:56
Last Modified:	14 Mar 2022 12:56
URI:	http://eprints.utem.edu.my/id/eprint/25685
Statistic Details:	View Download Statistic

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