Wear studies and cutting tests of Ti-Al-N-C nanocomposite coatings in milling operations - technical communication

New carbon-based nanostructured composite coatings of the material system Ti-Al-N-C were deposited on cemented carbide milling tools, and their feasibility for selected dry high-speed machining operations was assessed. For this purpose, wear studies with instrumented cutting machines in dry cutting tests were carried out in milling operations on Uddeholm hardened steels (AISI H13, and, AISI A2, respectively). The tools were coated in an industrial sputtering machine of the Hauzer HTC 625 type. The new nanocomposite coatings showed a good performance in the dry cutting operations and were benchmarked versus industrial state-of-the-art coatings.