Abstract
Many glass fibre reinforced polymer (GFRP) composite components made from primary melt processes require additional machining to meet the requirements of assembly and accurate dimensional tolerances. Despite the wide applications of reinforced vinyl ester resin in electrical components, automotive structural applications, mining and chemical process industries, high performance marine applications and sporting goods, very little is known about its machining aspects. Cutting force is treated as one of the primary measures of machinability of materials. In this study, the effect of cutting parameters and tool nose radius on the main cutting force in the turning of vinyl ester and woven fabric-based GFRP composites manufactured by hand lay-up process is investigated. Polycrystalline diamond turning tool inserts are used for machining. The force was measured through longitudinal turning, according to the experimental plan developed based on Taguchi methodology. The signal to noise ratio and analysis of variance were applied to the experimental data in order to determine the effect of the process variables on cutting force.
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