Investigations on drilling of hemp/glass hybrid composites |
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Authors: | Kundan Patel Vijaykumar Chaudhary |
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Affiliation: | Mechanical Engineering, C. S. Patel Institute of Technology, Changa, Gujarat, India |
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Abstract: | The present study aimed to examine the influence of tool geometry, spindle speed and feed on thrust force (TF) and delamination in hybrid hemp-glass composites. The pure glass polyester, pure hemp polyester and hybrid hemp/glass polyester composite specimens were prepared using hand layup technique. The drilling experiments were performed according to the full factorial design. Analysis of variance (ANOVA) was used to determine the impact of layering arrangement of fibers, feed (0.06, 0.18, 0.3?mm/rev), speed (1000, 3000, 5000?rpm), tool geometry (Plexi Point, Brad, Parabolic) and their interactions on TF and delamination. It was observed that drill geometry is major determinant for TF and delamination. Empirical models were developed using regression analysis and grey relational analysis was performed for optimizing the input parameters for TF and delamination at entry and exit. |
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Keywords: | Delamination drilling glass fiber grey relational analysis hemp fiber hybrid composites thrust force tool geometry |
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