Abstract
The results of laser-produced bead-on-plate type welds and lap welds of Al-Li-Cu-Mg-Zr (8090) sheets are presented. Full penetration welds were obtained in 4.3 mm thick sheets at speeds of about 20 mm/s using a 2 KW fast axial flow CO2 laser. Porosity was encountered in some of the welds. The level of porosity was, however, dependent on the original cast integrity and shrouding technique.The results of laser-produced bead-on-plate type welds and lap welds of Al-Li-Cu-Mg-Zr (8090) sheets are presented. Full penetration welds were obtained in 4.3 mm thick sheets at speeds of about 20 mm/s using a 2 KW fast axial flow CO2 laser. Porosity was encountered in some of the welds. The level of porosity was, however, dependent on the original cast integrity and shrouding technique.
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