Ravindra Pratap Singh
An attempt that has been made to take use of the advantages offered by natural composite materials in light of the fast advancement of research and development in this field over the course of the previous two decades, from the laboratory to the factory floor. During the manufacturing process of laminates, polymer matrices are used, while cotton, jute, and sisal are utilised as reinforcing materials. Epoxy resin is used to create this sort of composite material. The primary focus of this work is on determining the tensile and flexural strengths of the materials at hand, as well as the circularity of the holes drilled into the materials and the surface roughness of those holes. In addition, this work examines the surface roughness of the holes drilled into the materials. After conducting a large number of experiments, substantial conclusions have been drawn in order to demonstrate that machining is an option for use in applications that take place in the real world and to reduce the component weight. The hole produced by a drill spinning at 750 RPM with a feed rate of 0.05 mm/min has a high surface quality, low wear, and a low friction coefficient. Both an increase in spindle speed and a change in point angle have a detrimental effect on circularity; however, we are not exploring these variables here. The impact of feed rate on circularity is negligible. Our findings show that the best circularity (0.0185) for cotton laminate is achieved with a spindle speed of 0.05 mm/min at 750 rpm for the feed rate.
Keywords: Flexural Strength and Drilling Parameter of Natural Fiber Composites with Usage of Epoxy Resin
[This article belongs to Special Issue under section in Journal of Polymer and Composites(jopc)]
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|Received||December 12, 2022|
|Accepted||May 20, 2023|
|Published||June 15, 2023|