OPTIMIZATION OF MACHINING CONDITIONS DURING DRILLING OPERATION OF HYBRID FIBER REINFORCED PLASTICS (HFRP) COMPOSITE – AERO-STRUCTURAL COMPONENT

AHMAD AZRUL HAQIM, MOHD KHARI OPTIMIZATION OF MACHINING CONDITIONS DURING DRILLING OPERATION OF HYBRID FIBER REINFORCED PLASTICS (HFRP) COMPOSITE – AERO-STRUCTURAL COMPONENT. Project Report. Melaka, Malaysia, Universiti Teknikal Malaysia Melaka. (Submitted)

Text B092210449_Full.pdf Download (2MB)

Abstract

The drilling of Hybrid Fiber Reinforced Plastics (HFRP) composites, which are extensively used in aerospace structural components, posed significant challenges due to their heterogeneous and anisotropic nature. These materials, typically consisting of a hybrid combination of carbon and glass fibers embedded in a polymer matrix, offered superior mechanical properties, including a high strength-to-weight ratio, enhanced fatigue resistance, and good thermal stability, making them suitable for demanding aerospace applications. Nevertheless, the machining of HFRP composites resulted in critical issues such as delamination, fiber pull-out, and matrix cracking, which could compromise the structural integrity and functional performance of aerospace components. In this study, the drilling conditions for HFRP composites were optimized using the Taguchi L9 orthogonal array method to systematically investigate the effects of key machining parameters, namely feed rate, spindle speed, and drill geometry, on drilling performance. A twist drill with a helix angle of 30° and a point angle of 118° was employed, and its influence on thrust force, surface roughness, and delamination factor was evaluated. These responses were selected as critical quality indicators due to their direct relevance to surface integrity and dimensional accuracy in aerospace manufacturing

Item Type:	Monograph (Project Report)
Uncontrolled Keywords:	HFRP, Composite, Twist drill geometry.
Divisions:	Library > Projek Sarjana Muda > FTKIP
Depositing User:	Burairah Hussin
Date Deposited:	09 Jul 2026 14:34
Last Modified:	09 Jul 2026 14:34
URI:	http://eprints.utem.edu.my/id/eprint/30319
Statistic Details:	View Download Statistic

Actions (login required)

View Item