Types of Lasers used in metal processing

  • 1 Ship propulsion plants Department of the Faculty of Engineering Nikola Vaptsarov Naval Academy


This paper elucidates the salient features of CO2, Nd: YAG, and fiber lasers in the context of their application in metal processing. Operating at 10.6 micrometers, CO2 lasers exhibit variable power outputs, crucial for tasks such as cutting and welding. Nd: YAG lasers, working at 1.064 micrometers, demonstrate versatility in pulse modes, with their efficiency intricately linked to quantum defect and thermal effects. Fiber lasers, with an operational wavelength of 1.07 micrometers, showcase heightened efficiency (30-40%) owing to superior pump light absorption. While mathematical models provide foundational insights, the practical efficacy of these lasers’ hinges on nuanced factors, necessitating advanced empirical investigations for optimized application.


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