论文部分内容阅读
采用５ｋＷ级横流ＣＯ_２激光器进行了ＬＦ４、ＬＦ１１、ＬＦ２１和ＬＹ１２铝合金的拼焊实验，研究了合金种类、辅助气体对焊接的影响，在金相显微镜下观察显微组织并测试其显微硬度。
The welding experiments of LF4, LF11, LF21 and LY12 aluminum alloy were carried out with a 5kW cross-flow CO_2 laser. The effects of alloy type and auxiliary gas on the welding were studied. The microstructure was observed under a microscope and the microhardness was tested.