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对1420铝锂合金激光焊接中存在的主要缺陷产生的原因进行了系统的分析。重点阐述了激光焊接工艺参数对其焊缝成形和过程不稳定性的影响。
The causes of the main defects in the laser welding of 1420 Al-Li alloy were systematically analyzed. The influence of laser welding parameters on the formation of weld and the instability of the welding process are mainly discussed.