40th International Conference on Production Engineering of Serbia
ICPES 2025
Nis, Serbia, 18-19th september 2025
MULTILAYER LASER CUTTING OF STEEL PLATES
Jelena Baralic, Bogdan Nedic
DOI: 10.46793/ICPES25.104B
A laser is a monochromatic, coherent, convergent beam of electromagnetic radiation with wavelengths from ultraviolet to infrared. Almost all types of materials can be machined with a laser. The laser beam has a very high energy density. In laser cutting, a laser beam is used as a tool, under the influence of which the machined material melts and evaporates. In this way, a precise cut is created with minimal mechanical stress. During laser cutting of material, a heat affected zone is created right next to the cut. For simultaneous cutting of multiple layers of sheet metal - where several sheets are stacked and cut at the same time - laser cutting offers a flexible alternative to traditional punching or mechanical cutting. This is particularly important in the production of parts of small series, complex geometries and from materials that are difficult to process with conventional machining processes. This paper presents the results of research on the possibility of multilayer laser cutting of steel plates. The influence of the traverse speed and number of plates was analyzed. One, two and three plates with a thickness of 4 mm, from S355J2+N (C0563), were cut with the recommended traverse speed and the traverse speed higher and lower than the recommended values. The width of the cut and the roughness of the machined surface were analyzed, as well as the possibility of cutting through all layers
Laser beam cutting, multilayer, cutting width, surface roughness
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