Design Calculation and Performance Testing of Heating Coil in Induction Surface Hardening Machine

The induction hardening machines are utilized in the industries which modify machine parts and tools needed to achieve high ware resistance. This paper describes the model of induction heating process design of inverter circuit and the results of induction surface hardening of heating coil. In the design of heating coil, the shape and the turn numbers of the coil are very important design factors because they decide the overall operating performance of induction heater including resonant frequency, Q factor, efficiency and power factor. The performance will be tested by experiments in some cases high frequency induction hardening machine.

Authors:

• Soe Sandar Aung
• Han Phyo Wai
• Nyein Nyein Soe

Keywords:

• Induction Heating
• Resonant Circuit
• InverterCircuit
• Coil Design
• Induction Hardening Machine.

References:

[1] Curits,F.W.1944. High Frequency Induction Heating. 1sted. New
York: McGraw-Hill Book Company, Inc.
[2] Zinn S., and Semiatin, S.L. 1988. Coil Design and Fabrication: Basic
Design and Modifications. July 2005. Available:
http://www.ameritherm.com
[3] Bhattachrya, S.K and Chute, R.D. 1971. Industrial Electronic and
Control. New Delihi; Tata MC Graw-Hill Publishing Company Ltd.