Investigations on wear of the miling cutters edges for spline way

In the paper, the results of investigations on the milling cutters edges for splineway with and without hard surface layers. The wear examinations were divided into two groups: a) milling of the closed splineway and b) milling of the splineway opened on one side. The investigations were performed with material hardened up to 40-44 HRC. In both cases, the characteristics of the wear on the edges and the front of the milling cutter. In the paper, the graphs of the wear of milling cutters blades made out of sintered carbids covered with TiN and TiAlCN, as well as without coating are presented.