In this scanning induction hardening simulation, the steel shaft is heated by eddy currents, provided by a moving, two-turn copper coil. The surface of this 1055 steel shaft is austenitized to a predetermined depth. Closely following the heating coil, a water quench jacket (omitted for clarity) moves along the shaft, quenching the austenite material and providing a hard, martensitic case. The martensitic case depth is shown in the cutaway view of the shaft. With DEFORM, analysis of coil design, applied power and induction frequency may be carried out to determine the optimum processing conditions for a given steel shaft application. In addition, the distortion or dilatation of the shaft can be predicted, and design modifications made, prior to production runs.