Thanks for your reply. I am just struggling with calculating the power and current required in the coil.
It weighs 0.7 kgs and the ideal penetration depth is 1mm. With the formula Pworkpiece = mc(Tf-Tin/sec), would m be the mass of the whole object or just the zone I want the eddy currents to...
I want to surface heat internal splines with induction heating with an internal diameter coil. It is a cylinder, uniform shape, and the teeth are 1mm wide and 2mm deep. The inside diameter of the hollow section is 19mm and the length is 55cm.
I was wondering when calculating power/resistance...