OPTIMIZATION OF DRILLING PARAMETERS TO REDUCE DELAMINATION IN ABACA-SISAL FIBER EPOXY COMPOSITES

Authors

DOI:

https://doi.org/10.55766/sujst6932

Keywords:

Abaca fiber-Sisal fiber, Delamination factor, Drilling, Optimization

Abstract

Delamination became a prominent issue during the Computer Numerical Controlled Vertical Milling Machine (CNCVMM) drilling of natural hybrid composite materials. This study aims to investigate the influences of machining parameters such as drilling speed, feed and diameteron Abaca-Sisal fiber reinforced Epoxy Hybrid Composites (ASEHC) during drilling, with a focus on minimizing the delamination factor. Delamination occurrences were carefully examined using a profile projector at both the top and bottom of the drilled holes. Identifying of  the optimal machining parameters is key for justifying delamination of ASEHC composites. Taguchi orthogonal array used in the present work. This method allows testing multiple parameters in a structured way without needing to run every possible combination. The key parameters examined in this work included Spindle Speeds 3000, 2000, and 1000 revolutions per minute (rpm), Feed Rates 30, 20, and 10 millimeters per minute (mm/min) and Drilling Diameters 12, 10, and 8 millimeters (mm).The Scanning Electron Microscopic (SEM) analysis were performed the surface morphology of the drilled holes. The optimized drilling process parameters were significantly reduced on the delamination of the ASEHC; Delamination was reduced by 94% under optimal parameters leading to a better performance and durability of the composites.

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Published

2026-02-16

How to Cite

Murugesan, V., Ganesan, D., & Mani, P. (2026). OPTIMIZATION OF DRILLING PARAMETERS TO REDUCE DELAMINATION IN ABACA-SISAL FIBER EPOXY COMPOSITES. Suranaree Journal of Science and Technology, 33(1), 010399(1–10). https://doi.org/10.55766/sujst6932