Wear of Hard Coatings, Evaluated by Means of kaloMax

A spherical cap grinder (kaloMax) was employed to evaluate the wear resistance of hard coatings. Simplicity is the attractive advantage of the test. A comparative study of TiN and AlTiN coatings was carried out to elucidate capabilities and limitations of the technique. The relatively high uncertainty of measurement suggests that the test can be used only for qualitative evaluation of wear.