Crater wear on multi-layered coated carbide inserts when turning three distinct cast irons

This paper focused on the comparative study on the crater wear when cutting flake graphite iron (FGI), compacted graphite iron (CGI) and nodular graphite iron (NGI) because of the reported overwhelming difference in tool life. A series of turning experiments are conducted with FGI, CGI and NGI, with multilayer coated inserts under dry condition. The crater wear profiles obtained from the confocal microscopy are collected to construct the...