Study on process of laser spot welding for ultra-thin copper

LUO Zi-yi; YANG Yong-qiang; LU Jian-bin

doi:10.3969/j.issn.1001-3806.2010.04.020

LUO Zi-yi, YANG Yong-qiang, LU Jian-bin. Study on process of laser spot welding for ultra-thin copper[J]. LASER TECHNOLOGY, 2010, 34(4): 506-509. DOI: 10.3969/j.issn.1001-3806.2010.04.020

Citation:

LUO Zi-yi, YANG Yong-qiang, LU Jian-bin. Study on process of laser spot welding for ultra-thin copper[J]. LASER TECHNOLOGY, 2010, 34(4): 506-509. DOI: 10.3969/j.issn.1001-3806.2010.04.020

Citation:

LUO Zi-yi, YANG Yong-qiang, LU Jian-bin. Study on process of laser spot welding for ultra-thin copper[J]. LASER TECHNOLOGY, 2010, 34(4): 506-509. DOI: 10.3969/j.issn.1001-3806.2010.04.020

Study on process of laser spot welding for ultra-thin copper

Graphical Abstract

Graphical Abstract

Abstract

Abstract

In order to weld ultra-thin T2 copper with high reflectivity by means of Nd:YAG laser at 1.064μm,based on orthogonal test method,effects of pulse peak current,its duration and frequency on maximum shear stress were studied under the conditions of nitrogen protection,+2mm defocusing amount and 1.5mm/s welding speed.The relationships between maximum shear stress and pulse peak current,its duration and frequency were obtained in the experiments; the welding surface and its microstructure were observed.The results show that the ultra-thin copper with high reflectivity can be well spot-welded by means of Nd:YAG laser at 1.064μm,based on design of processing parameters such as the laser pulse shape.