三明治铝合金结构激光焊接工艺研究

Study on Laser Welding Process of Sandwich Aluminum Alloy Structure

针对激光焊接6082三明治铝合金结构,系统地研究了T型接头组织特征及力学性能。实验结果表明:从焊缝中心区,到热影响区,最终到达母材硬度逐渐升高,焊缝中心硬度最小;不同实验条件下,焊缝到母材过程中组织变化显著,且存在各种不同的缺陷。

The microstructure and mechanical properties of 6082 alloy sandwich structure were studied systematically in this article. The experimental results showed that the hardness of material gradually increased from the weld, to heat-affected zone, and then to base metal, and the hardness of weld center was minimal. From the weld to the base metal in the process the structure changed significantly under different experimental conditions, and there were different kinds of defects.