Abstract
Disk laser beam welding technique is used to fabricate 2-mm 2A14-T6 aluminum alloy plates under different welding parameters. Effects of welding parameters on microstructures and mechanical properties of the weld are investigated. Grain size and porosity ratio in the disk laser welds firstly decrease, then increase with the increase of the heat input. Hardness at the fusion line and in fusion zone, tensile strength and elongation firstly increases, then decreases with the increasing heat input. When laser power is 2500W, welding velocity is 2.0m/min and heat input is 75kJ/m, the finest microstructures, the minimum porosity ratio, the highest hardness and the maximum tensile strength are obtained. The fracture type in all samples is defined as a ductile fracture, and the maximum tensile strength reaches up to 261.7MPa, about 61.2% of that of the base metal.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.