Temperature Field Analysis Of High-frequency Induction Brazing And Experimental Verification

High frequency induction brazing is a method which heats a workpiece using the Joule effect resulting form an eddy current, melts the filler and achieves brazing. For the sake of obtaining even thermal field, ensuring the filler's melting, preventing the filler's flowing and damage to the utmost extend, adjusting brazing process to improve the machining capability, this dissertation talks about making use of finite element method (FEM) to simulate the process of high frequency induction brazing, makes a research on the traits and rules of temperature rising, avoids a great deal of fussy trial work, gains optimized brazing craftwork parameter. The main contents of the dissertation are stated as follows:The distributed characteristics of eddy and thermal fields in high frequency induction brazing are simulation by the ANSYS software respectively, including the distributions of magnetic, eddy and thermal fields during the whole induction brazing process. Experiment platform for high frequency induction brazing has been established, including suitable inductor design, the choice of the temperature measuring equipment. This preparative work is essential to brazing experiments. The FEM simulation analysis and experiments on high frequency brazing were conducted on the conditions of different induction heating parameters. The results shows the simulation results are feasibility and merits by comparison with the experiment results.