Cutting performance improvement of MTCVD coated cemented carbide inserts via appropriate heat treatment

Effect of pulse electromagnetic coupling treatment on thermal conductivity of WC-8Co cemented carbide

“…The strengthening treatment technologies for cemented carbide include heat-treatment and ultra-fine cemented carbides [21,22], which are based on the phase transformation and connection distribution improvement between binder phase and hard phase, or technologies, such as tool-coating and cryogenic treatment [23][24][25][26], which are based on adding or generating hard phase, that will inhibit the wear of the alloy, on the surface of the material. In this study, pulse electromagnetic coupling treatment (PEMCT) technology is proposed to strengthen the WC-8Co cemented carbide and improve its thermal conductivity and oxidation resistance.…”

Wear and Fatigue Behavior of PVD and MTCVD TiCN Coated Cemented Carbide Inserts in Turning Cast Iron

“…Chemical vapor deposition (CVD), unlike to PVD vacuum processes, is a heatactivated process based on the reaction of gaseous chemical compounds with suitably heated and prepared substrates. The deposition temperature ranged from 800 o C to 1200 o C dependent upon the applied method [1,4]. Extensive investigations have been conducted in the past concerning the developed failure mechanisms of coatings deposited using different deposition procedures during material removal processes [1,4,5,6].…”

“…The deposition temperature ranged from 800 o C to 1200 o C dependent upon the applied method [1,4]. Extensive investigations have been conducted in the past concerning the developed failure mechanisms of coatings deposited using different deposition procedures during material removal processes [1,4,5,6]. Especially in interrupted cutting processes where dynamic loads are developed in the coating and its substrate, the fatigue and adhesion properties of the coated tools play a protagonist role concerning their wear evolution [1,7].…”