The Effects of the Laser Pulse Duty and the Wobble in Case of Manual Laser Welding

Simon, Virág and Varbai, Balázs and Puskás, Zsolt (2025) The Effects of the Laser Pulse Duty and the Wobble in Case of Manual Laser Welding. ACTA MATERIALIA TRANSYLVANICA (EN), 8 (1). pp. 34-37. ISSN 2601-8799

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Abstract

In our research we investigated the effects of the laser pulse duty and the wobble on the weld geometry in pulsed mode manual laser welding. Our experiments showed that, for the parameters studied, complete fusion can be achieved without laser wobbling at 500 W power for a material grade of 1.4301 and a wall thickness of 1.4 mm. Increasing the laser wobble amplitude led to an increase in weld width and a decrease in weld depth and weld area. Increasing the pulse duty also increased the weld width, weld depth and weld area. Without laser wobbling, a weld with an area of 1.1 mm2 was produced when the pulse duty was set to 70%, while a weld with an area of 1.6 mm2 was produced when the pulse duty was set to 100%, so that the area of the weld welded with a pulse duty of 70% was approximately 70% of the area of the weld welded with a pulse duty of 100%.

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