Studies on the impact of soaking time on a cryogenic processed and post tempered WC-Co insert

In the present work, commercially available tungsten carbide bonded with cobalt (WC-Co) which is used as a cutting tool is cryogenically treated at different holding periods in a deep subzero environment and evaluates the machining performance through dry turning. The results revealed that 24 h deep cryo
soaked WC-Co insert shows improved observation is because of the presence of (N) eta carbide particles and fine distribution of micro grains and it’s confirmed by SEM micrograph. Higher the soaking leads to irregular grain growth and a deficiency in the formation/distribution of eta carbide particles that affect
the hardness of the tool