Abstract

The results of cutting experiments and computer simulation of oblique cutting conducted in order to understand three dimensional burr formation and the effect of the tool inclination angle are presented. Cutting experiments were carried out in a scanning electron microscope with a micro machining device. Two types of burr were observed: exit burr on the exit edge of the workpiece and side burr on the side of the workpiece. The exit burr in oblique cutting was smaller than in orthogonal cutting, while the side burr in oblique cutting was larger than its orthogonal counterpart. A three dimensional finite element method program was also developed to predict three dimensional burr formation. The simulation showed good qualitative agreement with experimental data on both burr shape and cutting forces.

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