International Scientific Journals
of Scientific Technical Union of Mechanical Engineering "Industry 4.0"

Laser welding has become a highly effective technique for joining of metal sheets, offering precision and minimal thermal distortion. The quality of the welds, however, is significantly influenced by the proper selection and control of process parameters. This study focuses on the optimization of key parameters like laser power, welding speed, wire feed rate, and beam oscillation through experimental welding trials.
The practical part of the research involved welding thin sheets with LW-2000W device at various parameter settings, followed by visual inspection and metallographic analysis of the final welds. The findings provide insights into how parameter optimization can enhance consistency and overall process reliability, offering valuable guidelines for industrial applications where high precision is required.

Manual laser welding has become one of the progressive technologies in recent years for processing of metallic materials, showing particular advantages in the welding of different metals. By the high energy concentration and precise focus of the laser beam, it is possible to produce joints with minimal heat-affected zones, significantly reducing the risk of deformation, cracking and other types of defects. This technology enables high-quality and aesthetically welds without the need of post-processing, while also increasing productivity and process repeatability.
This article examines the main principles, parameters and modes of laser beam welding itself, analyzes practical parameters of device LW-2000W, designed for manual laser welding. The final section summarizes practical part focusing on welding of sheet metals at different values of parameters such as power, welding speed, wire feed and beam oscillation.