Proceedings of The 2nd International Conference on Research in Science, Engineering and Technology
Coating as Micro-Structural System
Zuzana Murčinková and Jaromír Murčinko
The paper provides the application of nanostructured TiAlN and nanocomposite structured TiAlSiN coatings on step drills. The analyses proved that the obtained tool lives are different despite the fact that the same tool geometry, coating, and PVD (physical vapour deposition) technology are used. This disproportion was experimentally tested focusing on surface condition using the pre and post treatment and on the chemical and structural coating composition.
Keywords: step drill, cutting edge, pre- and post-treatment, tool life, surface condition.