摘要
In the paper, the finite element model(FEM) of wire arc additive manufacturing(WAAM) by TIG method was established by the ABAQUS soft, and the phase transformation latent heat was considered in the model. The evolution rules of temperature field at the interlayer with the cooling time of 10 s, 30 s and 50 s were obtained by the model. The WAAM experiment were performed by 5356 aluminum alloy welding wire with φ1.2 mm, and the simulated temperature field were varified by the thermocouple. The result shows that the highest temperature at the molten pool center increases with the increased interlayers at the same interlayer cooling time;the highest temperature drops gradually and the decline is smaller with the increased interlayer cooling time at the same layer. No remelting occurs at the top layer, and at least two remelting times occur in the other layers, resulting in complex temperature field evolution.
作者
赵鹏康
方魁
唐成
牛建平
郭美玲
Zhao Pengkang;Fang Kui;Tang Cheng;Niu Jianping;Guo Meiling(Shaanxi Provincial Key Laboratory of Machinery Manufacturing Equipment,Xi’an University of Technology,Xi’an 710048,China;Key Laboratory of the Ministry of Education for Integration of CNC Machine tools and Machinery Manufacturing Equipment,Xi’an University of Technology,Xi’an 710048,China;AECC Xi'an Aero-Engine LTD,Xi’an 710021,China)
基金
This work was supported by the National Natural Science Foundation of China(Grant No.51905423)
Natural.Science Basic Research Plan in Shaanxi Province of China(Grant No.2021JM338)
China Scholarship Council(Grant No.201908610042)
Application Technology R&D Project of Beilin District(GX2102).
