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Nd:YAG Laser Welding of AZ91 Magnesium Alloy for Aerospace Industries

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Abstract

Magnesium alloys have attracted the interest of the modern manufacturing industry owing to their higher strength-to-weight ratios and heat conductivity than other alloys. Laser welding will be an important joining technique for magnesium alloys with their increasing applications in aerospace, aircraft, automotive, electronics, and other industries. The Nd:YAG laser beam has the reputation to be a rapid, precise, and easy process for welding of magnesium alloys. In this study, the use of an Nd:YAG laser for thin-plate AZ91 magnesium alloy welding was optimized. The welding cross section geometries were determined by optical microscopy analysis. Some important laser processing parameters (laser power, welding speed, and shielding gas flow) and their effects on the welding quality are discussed.

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Acknowledgments

The authors thank the staff of the Mechanical Institute of Marseille for their support, the Diagnostics and Imaging of Industrial Processes Laboratory of the National Engineering School in Saint-Etienne, and the MecaSurf team for their assistance in the experimental work.

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Authors and Affiliations

  1. Unit of Heat transfer and Thermodynamic of Industrials Proceeding, National Engineering School of Monastir, 5019, Monastir, Tunisia

    Kamel Abderrazak & Hatem Mhiri

  2. Mechanical Institute of Marseille, Technopôle de Château-Gombert, 13453, Marseille cedex 13, France

    Kamel Abderrazak, Philippe Bournot & Michel Autric

  3. Engineering Mechanical Laboratory, National Engineering School of Monastir, 5019, Monastir, Tunisia

    Wacef Ben Salem

Authors
  1. Kamel Abderrazak
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  2. Wacef Ben Salem
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  3. Hatem Mhiri
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  4. Philippe Bournot
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  5. Michel Autric
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Corresponding author

Correspondence to Kamel Abderrazak.

Additional information

Manuscript submitted February 20, 2008.

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Abderrazak, K., Ben Salem, W., Mhiri, H. et al. Nd:YAG Laser Welding of AZ91 Magnesium Alloy for Aerospace Industries. Metall Mater Trans B 40, 54–61 (2009). https://doi.org/10.1007/s11663-008-9218-7

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  • DOI: https://doi.org/10.1007/s11663-008-9218-7

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