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Drilling of Glass Fiber Reinforced Composite with Modified HSS Drill Geometry


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1 Department of Mechanical Engineering, Dr. Babasaheb Ambedkar Technological University, Lonere-402103, Raigad, Maharashtra, India
     

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In the recent years reinforced plastics (GFRP, CFRP & others) are used in a wide field of manufacturing industry. The reinforced plastics are extensively used in many engineering applications as a substitution for the conventional materials. With an increase demand for composite materials like glass fiber reinforced plastic (GFRP), carbon fiber reinforced plastic (CFRP) and others, the need to drill such products are increasing rapidly. In the present work drilling tests were carried out on GFRP composites with conventional HSS (18-4-1) drill bit and then by modifying the drill geometry (web or chisel edge) i.e. web thinning in order to show the effect of drill geometry in general and web (chisel edge) in particular on the performance of the drilling of GFRP composite. It is observed that the fiber orientations and drill geometry plays a vital role on the cut quality and delamination. The paper reports the findings in that direction.
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  • Drilling of Glass Fiber Reinforced Composite with Modified HSS Drill Geometry

Abstract Views: 175  |  PDF Views: 0

Authors

D. G. Thakur
Department of Mechanical Engineering, Dr. Babasaheb Ambedkar Technological University, Lonere-402103, Raigad, Maharashtra, India
P. K. Brahmankar
Department of Mechanical Engineering, Dr. Babasaheb Ambedkar Technological University, Lonere-402103, Raigad, Maharashtra, India
M. Sadaiah
Department of Mechanical Engineering, Dr. Babasaheb Ambedkar Technological University, Lonere-402103, Raigad, Maharashtra, India

Abstract


In the recent years reinforced plastics (GFRP, CFRP & others) are used in a wide field of manufacturing industry. The reinforced plastics are extensively used in many engineering applications as a substitution for the conventional materials. With an increase demand for composite materials like glass fiber reinforced plastic (GFRP), carbon fiber reinforced plastic (CFRP) and others, the need to drill such products are increasing rapidly. In the present work drilling tests were carried out on GFRP composites with conventional HSS (18-4-1) drill bit and then by modifying the drill geometry (web or chisel edge) i.e. web thinning in order to show the effect of drill geometry in general and web (chisel edge) in particular on the performance of the drilling of GFRP composite. It is observed that the fiber orientations and drill geometry plays a vital role on the cut quality and delamination. The paper reports the findings in that direction.