Comparative analysis of wear-resistant coatings properties on drilling tools hardening
Modern technologies of thin-film wear-resistant coatings: CVD- and PVD-processes have been examined, as well as the new finishing plasma hardening technology (FPH). This method relates to the processes of beadless chemical coatings deposition of thin-film coating, carried out at atmospheric pressure with the use of liquid organoelemental compounds and gaseous atmosphere and with PECVD by cold atmospheric plasma. Comparative physical/mechanical and tribological characteristics of different wear-resistant coatings are given, and the results of model and industrial tests of finishing plasma hardening technology applied to powdered metal high-speed steel drills hardening are reported.