Experimental results of laser welding of zinc coated steel sheets with a new method Available to Purchase

We suggested to laser weld zinc coated steel sheets proposing a two laser beams method, an high power Nd:YAG and CO₂ laser or two beams split from the same source (Nd:YAG or CO₂ laser) are used in tandem. The first beam cuts a slot, thus removing the zinc coating, while the second beam performs the weld. The paper presents and discusses the early experimental results of the method showing the characterization of the weld through the metallurgical results obtained in laboratory. Metallurgical results show total absence of Zinc in the weld area.