在凝固准稳态阶段，熔池熔深和半径变化较小，但表面最高温度、熔池流速急剧减小；凝固加速阶段则反之。
At quasi - state stage, the depth and radius of laser pool have small changes, but the highest surface temperature and velocity of molten pool decease rapidly.
激光深熔焊接的传热过程包括热传导和焊接熔池内熔融材料的对流流动。
The heat transfer in laser deep penetration welding includes heat conduction and convection in the welding pool.
本文根据熔池动力学的研究成果分析产生这种熔深易变性的原因，指出了生产中有效控制这种易变性的对策。
Based on research of melting pool of dynamics, the article discussed the reason of melting variation, and pointed out the countermeasure for effective control the variation in production.
目前实时检测的内容主要有焊接过程的稳定性、装配质量、离焦量、焊缝熔深和表面形貌、熔池与小孔的形态等。
The present research mainly focuses on detecting the processing stability, assembly quality, defocusing, weld penetration, weld shape, pool and keyhole, etc.
熔池深，成形美观。
飞溅小，熔池深，焊接效果好。
飞溅小，熔池深，焊接效果好。
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