The aim of the experiment is to conduct drilling tests on stainless steel, process the measured data, and subsequently evaluate CZ005 drills. The drills have a different cutting-edge geometries two types of coating. For two drills, the cooling grooves on the flank were ground. Based on the evaluation, the order of the tools with the best characteristics was determined, focusing primarily on: • accuracy of the position of individual drilled holes, • accuracy of the diameter of the drilled holes, • geometric tolerances of machined holes – geometric tolerance of cylindricity and perpendicularity to the drilled surface of the workpiece, • surface texture of drilled holes – roughness, • cutting forces, • tool wear. From the obtained results of the experiment, the benefits of individual coatings and ground cooling grooves were assessed. The experiment shows a procedure that can be generally applied to the evaluation of monitored parameters and the service life of drills.
Science Journal 