Optimization of the Drilling Parameters on Delamination Factor at Hybrid Fiber Reinforced Polymer Composites
Delamination is one of the common failures in composite materials that affect the strength of the composite, which appears during the machining, and drilling of composite materials. This paper focuses on the influence of drilling parameters spindle speed and feed rate on the delamination factor during the drilling process of Hybrid Fiber Reinforced Polymer (HFRP) with 5 mm thickness. Taguchi design is employed to study the drilling parameters of HFRP using an orthogonal array with L16. It is concluded that feed rate is the significant parameter that affecting on delamination damage comparable with spindle speed. The optimum experiment no. 13 with minimum delamination factor is 1.304 at spindle speed 1273 rpm and feed rate 0.05 mm/rev. Also, the maximum delamination factor is 1.496 was occur in experiment no.4 with a spindle speed of 318 rpm, and feed rate of 0.20 mm/rev.