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Research progress of laser welding under subatmospheric pressure

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Abstract

With the rapid development of laser sources and welding technologies in recent years, laser welding has been widely used in the production. In laser welding process, plasma plume often shields the input energy and defocuses the laser beam, which has significant influences on the welding efficiency and quality. It has been found that laser welding under subatmospheric environment could effectively suppress plasma plume, increase weld penetration depth, improve weld pool stability, reduce spatter and undercut, and obtain high-quality weld. After a comprehensive review of the latest research results, the plasma plume, molten pool dynamics, weld morphology, microstructure, and mechanical characteristics of various materials during laser welding under subatmospheric environment are analyzed. Finally, the future research works are discussed aiming at some remaining issues in this topic.

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The authors gratefully acknowledge the support of the New Faculty Research Startup Fund of Guangxi University (grant number A3010051006).

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  1. Institute of Laser Intelligent Manufacturing and Precision Processing, School of Mechanical Engineering, Guangxi University, Nanning, 530004, Guangxi, China

    Fan Yang, Guangjie Xia, Xing Guo, Canyang Chen & Yu Long

  2. Han’s Laser Smart Equipment Group, Shenzhen, 518103, Guangdong, China

    Binghua Chen, Jinglong Tang & Genyu Chen

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  1. Fan Yang
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Fan Yang: Writing — review & editing. Guangjie Xia: Writing — original draft. Xing Guo: Writing — original draft. Canyang Chen: Writing — original draft, Picture curation. Yu Long: Supervision, Funding acquisition. Binghua Chen: Investigation. Jinglong Tang: Resources. Genyu Chen: Resources.

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Yang, F., Xia, G., Guo, X. et al. Research progress of laser welding under subatmospheric pressure. Int J Adv Manuf Technol 116, 803–820 (2021). https://doi.org/10.1007/s00170-021-07488-3

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