Customized cutting edge preparation by means of grinding

Due to their low load resistance, sharp ground cutting edges are generally considered disadvantageous to high performance cutting processes. Consequently, providing additional cutting edge preparation in order to enhance tool-lifetime and – performance has become increasingly important. In this context, the following paper presents a novel method for generating customized cutting edges by means of grinding. An approximation of general round edges by applying several chamfers has been proposed and a geometric model for designing these special edges has been suggested. Grinding tests have been carried out to verify the reliability of the new method. The relative errors caused by the limited precision of the machine tool have also been taken into account. Furthermore, an improvement of the edge quality based on the implementation of the micro geometry has been demonstrated.

► An innovative method to prepare cutting edges by means of grinding is proposed.
► The reproducibility of the process is verified.
► Errors are mainly caused by the limited precision of the machine tool.
► Implementation of the micro geometry leads to improvement of the edge quality.