Abstract
A combined heat source model (HSM) is a new technology to resolve the welding problem of aluminum alloy in the friction stir welding (FSW) process. It authenticates advantage is solid-phase welding technology for magnesium, aluminum, and other low melting point alloy welding. Temperature field analysis is the prerequisite for improving the welding quality, welding metallurgy, and mechanical analysis. An accurate grasp of the temperature field distribution on the FSW process plays a vital role. In this research, the temperature field of FSW for 6005 aluminum alloy is simulated and analyzed by SYSWELD software. Then the simulation results were verified by experimental results. First of all, the finite element simulation and theoretical analysis were carried out for the FSW process. Then finite element model was established by using the SYSWELD software. And the temperature field of the FSW process was established by grid partitioning, HSM setting, and subsequent observation. The numerical simulation method is used to analyze the temperature field of the FSW process. Finally, the simulation results are verified and calibrated by the thermocouple temperature test. The influence of different welding parameters (Welding Speed and Rotational Speed) on the temperature field is evaluated by the thermal field curves analysis and some particular nodes analysis of the target area.
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