Two Dimension Value Simulation of Plasma Powder Deposition Process in Electromagnetic Field

Abstract:

A two dimension value simulation was carried out for studying the electromagnetic force effect on melting pool in plasma powder deposition process. As the process is a layer-laminated deposition process, the gravity and the fluid motion of molten metal in melting pool during the layer-laminated deposition process without supporting, it will difficult to form complex shape parts. So a new scheme which using the magnetic field to restrict the melting metal flow was proposed. The method designed a restricted equipment of magnetic field in order to prevent and reduce the fluid flow and collapse of the melting pool. Compared with traditional method, as the height of the deposition shape increased, the process restricted with electromagnetic force can make the shape of parts more complex and more accurate. The changes of the electromagnetic force field were simulated with the finite element analysis, while the effects of electromagnetic force on forming process were discussed. Simulation show that the method is feasible and practicable. The electromagnetic force will decrease the post-treatment procedure and could contribute to the process of plasma powder deposition manufacture.

• Periodical: Applied Mechanics and Materials (Volumes 29-32)
• Pages: 531-536
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.29-32.531
• Online since: August 2010
• Authors: Chao Wang, Hai Ou Zhang, Gui Lan Wang
• Keywords: Collapse, Electromagnetic Force, Fluid Flow, Maxwell Force, Plasma Powder Deposition

References

[1] Chunfeng Li. high-efficiency forming technique, National Defence Industry Press, BeiJing, (2001).

[2] Jianmin Jin. finite element method of electromagnetic field, Xidian University Press, XiAn, (1998).

[3] Hengzhi Fu, Jun Zhang. electromagnetic hydromechanics and material engineering[A], the forefront of Science and Technology of China(Edition of Chinese Academy of engineering)[C], 1998, China Higher Education Press, BeiJing, 1998, 187-224.

[4] Shuangming Li, Jinshan Li, Qitang Hao et al. Electromagnetic Shaping of Molten metal for Near net Shape[J]. China Mechanical Engineering, 2000, 11(1~2), 73~76.

[5] Tuping Zhou, Ying Qu, Zhicheng Han. Electromagnetic casting for steel[J]. Iron and Steel, 1994, 29(12), 71~74.

[6] LaversJ D. ISIJ International [J], 1989; 29(12): 993.

[7] Yan Xiuke, Xie Dexin, Gao Zhangxie, Yu Cunzhan, Research on Integration Path Selection of Maxwell Stress Tensor Method Used in Electromagnetic Force FEM Analysis, Transactions of china electrotechnical society, 2003, Vol8，No. 5: 32～36.

[8] Hongwei Jiang, Chunfeng Li et al. Current research situation of electromagnetic forming technique. Material Science & Technology, 2004, 12(3), 327~330.