Simulation and experiment investigaton of electromagnetic and thermal field during induction cladding

Abstract

A fully electrical-magnetic-thermal coupled model is proposed to investigate the heating mechanism of induction cladding. The simulation results reveal that the coating and the thin layer close to the substrate surface were heated layer by layer. Furthermore, the non-uniform electromagnetic field generated an uneven temperature distribution, which had a larger impact in the longitudinal direction than in the cross section. The maximum relative errors between the simulated and measured temperatures indiacate that the numerical calculation fit the experimental results well. The impact of the non-uniform temperature distribution on the coating properties was experimentally studied. The specimen in the middle position had a more complicated phase composition, lower porosity, and higher microhardness than those at the two ends.

A Fast Method of High-Frequency Induction Cladding Copper Alloy on Inner-Wall of Cylinder Based on Simulation and Experimental Study

“…The formula is as follows: δ represents the penetration depth in centimeters (cm); ρ represents the resistivity in ohm-centimeters (Ω•cm); µ represents the relative The induction heating system mainly consists of a heating power supply, heating coil, and the workpiece being heated. In the process of induction heating, when alternating current with a certain frequency passes through the conductor, most of the current is concentrated on the surface of the conductor due to the skin effect, resulting in a power law decline in current density from the surface of the conductor to the inside [42,43]. Figure 2b illustrates the current distribution across the cross-section of the conductor.…”