Abstract
As a rising star in the field of additive manufacturing, micro plasma additive manufacturing technology has attracted more and more attention because of its unique heat source advantages. However, the simulation method based on micro plasma additive manufacturing technology is not mature enough to reveal the law and guide the experiment. In this paper, the single pass single-layer cladding process of in625 alloy manufactured by micro arc plasma additive is simulated by computer simulation method. The temperature field distribution in the manufacturing process of micro arc plasma additive is studied and the thermal process of characteristic points is output. The results show that: the finite element simulation method can better restore the heat source moving process of micro arc plasma additive manufacturing, and the Gaussian surface heat source has good applicability in the micro arc plasma additive manufacturing. The simulation results can provide theoretical basis and data support for the organizational evolution in the manufacturing process of micro arc plasma additive.
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