Tracking of the development wear of cutting tools with different geometry during parting-off

The article deals with the tracking of the wear development of cutting tools made from sintered carbide during parting-off of steel C45 (CSN 12 050.1). For experiment were selected inserts from two producers of cutting tools with different geometry. The parting-off was realized in the workpiece axis and the whole experiment was divided into two parts, parting-off to zero and parting-off to pre-drilled hole into material. The experiment was evaluated on the principle direct microscopic method and was observed the wear on the flank of cutting tool VBB. Tests were realized in cooperation with Pramet Tools Sumperk, Czech Republic.