Numerical modeling of the electromagnetic and thermal fields in the process of uniform heating of half-products using magnetic flux concentrators

This paper presents some research results about the volume induction heating in order to obtain a uniform heating of half-products. Modern design tools, especially those using numerical modeling, offer several benefits [1]. The technological development of the heat-processing of the half-products imposes a quick heating and a uniform distribution of the thermal field inside the half-product. We present here the results of the numerical processing of the volume induction heating process for three optimized cases. The first two cases optimize the geometry of the inductor in order to obtain the most uniform induction heating along the length of the half-product. The third case produces the same results using a different method: here we use magnetic flux concentrators. These concentrators intensify the electromagnetic field, thus leading to better results when using induction heating [2], [3].