Abstract
Drilling is the most commonly used manufacturing processes for holemaking. Researchers are dealing with the development of mathematical models for a series of phenomena related to drilling i.e. burr size, surface roughness, cutting forces. The present research investigates the relationships and parametric interaction of the three input variables (tool diameter, cutting velocity, feed rate) on the thrust force and torque developed during drilling of an Al7075 workpiece with solid carbide tools. A complete set of experiments was performed and the response surface methodology (RSM) was used in order to acquire the mathematical models for both the thrust force and the torque required. The analysis of variance (ANOVA) was used to verify the adequacy of the mathematical models. The most significant factors were recognized. The main and interaction effects plots were studied and the 3D response surfaces are presented.
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