Advantages of adjustable intensity profiles for laser beam welding of steel copper dissimilar joints

• DOI: 10.1016/j.procir.2020.09.103
• Publication Date: 2020-09-15T20:55:44Z
• Authors: Jonas Sebastian R...; Sarah Nothdurft; Jörg Hermsdorf; Stefan Kaierle; Ludger Overmeyer
• Keywords: Weldability; Intensity; Beam parameter product

Recent developments in laser beam sources expand the possibilities of welding similar and dissimilar copper joints. New methods shaping adjustable intensity profiles using two layer fibers create a center ring spot, which is newest state art fiber sources. In this study, influences on weldability steel lap joints with top side will be discussed. The results show that former problems spattering poor coupling can avoided through new technologies adjusted parameter settings. investigations without melt ejections surfaces are demonstrated influence different distributions weld geometry