T. Learman, Alpha 1, Columbus, OH

Summary: Induction heating work coils generates very large magnetic fields. This changing magnetic field induces an eddy current in the work part and heat is generated in the work part due to the IČR loss. As the work part is heated this IČR loss changes and different materials also have different IČR losses. A single turn work coil is often used for induction heating for its robustness and size requirements. However, single turn work coils are one of the lease efficient types of work coil. Adding a magnetic conductor composite onto the work coil will conducts the magnetic field around the area of the coil that does not need to be heated and this will increase the magnetic field were the field and heating is needed. We will investigate induction heating concentrator types and the advantages and disadvantages of each. We also will study different types of work coil designs and how concentrators can help generate more magnetic field and force the energy and heat were it is needed. We also will consider how this composite can be used to shield the magnetic fields.