Microstructure Evolution and Mechanical Properties of Laser Oscillation Welded 2219 Aluminum Alloy

Key Points

• Altered mechanical properties demonstrate the impact of laser oscillation welding on microstructure evolution in 2219 aluminum alloy.
• Tensile strength improved by 15% after applying specific thermal cycles during the welding process.
• Microstructure assessment reveals grain refinement and improved ductility in the welded regions of the alloy.
• Supporting evidence highlights the benefits of laser oscillation welding for aerospace applications in aluminum alloys.