Industrial application of micro geometrical cutting edge optimization for solid carbide boring tools

This paper aims to establish the mechanism of quality optimization and geometrical improvements for the micro-geometry of solid carbide drills. The purpose of micro-geometrical optimization of the cutting edge tools of drills is to improve tool live, cutting speeds and minimizing cutting forces. The most important geometrical feature when drilling with solid carbide drills is the radius or chamfer of the cutting edge, which can be achieved through brushing under a certain angle. Improving this procedure by adding another step, soft granulated polishing, can positively influence on the cutting parameters and decrease the wear effects.