By Ambrell Precision Induction Heating
This brochure provides a guide for everything you need to design the optimal coil for the best performance from your induction heating system. 5 Basics of Induction Heating Coil Design Induction coil design can have a major impact on part quality, process efficiency, and manufacturing costs. How do you know if your coil design is best for your part and process? Here are some induction coil basics and five tips to optimize your design. 1) How induction heating coils work The induction coil determines how effectively and efficiently a workpiece is heated. Induction coils are water-cooled conductors made of copper tubing that is readily formed into the shape of the coil for the induction heating process. Induction heating coils do not themselves get hot as water flows through them. Work coils range in complexity from a simple helical- or solenoid-wound coil (consisting of a number of turns of copper tube wound around a mandrel) to a coil that is precision machined from solid copper and brazed. Coils transfer energy from the power supply to the workpiece by generating an alternating electromagnetic field due to the alternating current flowing in them. The coil's alternating electromagnetic field (EMF) generates an induced current (eddy current) in the workpiece, which generates heat due to I Squared R losses (core losses). The current in the workpiece is proportional to the coil's EMF strength.
