Enhancement of metallurgical and mechanical properties of the materials by performing CO₂ laser beam welding

ABSTRACT

CO₂ laser beam welding (LBW) is one of the complex, augmented accuracies required and high-speed material combining process. To combine different materials such as stainless steels, carbon steels, aluminium, HSLA steels, titanium and the superalloys, laser beam is applied as a heat source during welding. CO₂ LBW is mainly applyed in the fields such as airbags, fuel filters, solenoids, steel structures, air conditioning equipment, fuel injectors, alternators, transmission parts, joining of miniature electronic components and in engine parts. This literature review work focuses on study work conducted on CO₂ and hybrid laser welding, mechanical and microstructural studies, analytical and numerical modelling techniques and optimization of process parameters. The time frame of the review is up to the year 2020.

KEYWORDS:

• CO₂ laser welding
• process parameters
• analytical modelling
• numerical modelling
• microstructure

Disclosure Statement

No potential conflict of interest was reported by the author.

Additional information

Funding

The author thanks Vellore Institute of Technology, Vellore for providing ‘VIT SEED GRANT’ to carry out this research work.