Investigation of heat treatment of gears using a simultaneous dual frequency inducting heating method

This paper presented the simulation and experiment of gear hardening using the SDF induction technology . Using a thermal-electromagnetic coupled 2D FE model, it performed simulations on heating various gears and selected “optimal” input parameters of SDF induction heating . After constructing a 1 MW-scale SDF inducting heating system, gear hardening performances were evaluated . The trends of the experimental results matched with those of simulations . This study demonstrated the feasibility of 2-D FE modeling for reducing computational costs and accurately predicting gear hardening results “simultaneously” .