期刊论文

Liu, Zhiwen

英文

International Journal of Advanced Manufacturing Technology

0268-3768

2022

119

11-12

8039-8056

10.1007/s00170-022-08801-4

The authors are grateful for the financial supports from the National Natural Science Foundation of China (No. 52005244), the Natural Science Foundation of Hunan Provincial (Nos. 2021JJ30573, 2019JJ50510) and the Scientific Research Fund of Hunan Provincial Education Department (Nos. 21C0306, 18B285).

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Reasonable design and matching of die structures and process parameters play crucial roles in seam weld quality and variations in extrusion load and exit temperature during magnesium alloy porthole die extrusion. In this study, the arbitrary Lagrangian–Eulerian algorithm was employed to simulate the welding process of metal streams and calculate the peak extrusion load and exit peak temperature. Three-dimensional curved surfaces were applied to investigate the distributions of welding pressure, temperature, effective strain rate and stress on ...