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首页> 外文会议>International Congress on Applications of Lasers and Electro-Optics >INFLUENCE OF INCLINATION ANGLE ON SPATTER BEHAVIOR AT WELDING WITH LASERS OF STRONG FOCUSABILITY
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INFLUENCE OF INCLINATION ANGLE ON SPATTER BEHAVIOR AT WELDING WITH LASERS OF STRONG FOCUSABILITY

机译：倾斜角度对焊接激光聚焦性激光焊接行为的影响

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Thin disk lasers as well as fiber lasers are distinguished by their strong focusability and high efficiency. The stronger focusability can be used for an expansion of the application range. Weld seams of unprecedented high aspect ratios can be achieved which are only known from the electron beam welding until now. Based on results of thin disk and fiber laser experiments it has been shown in earlier publications that the influence of the divergence angle on the achievable welding depth increases dramatically for lower spot diameters. The evaporation rate which is mainly occurring on the front keyhole wall is dependent on the aspect ratio of the keyhole. Due to this there is a decrease of the number of spatters and their range of ejection angle due to a smaller focus diameter (d{sub}f = 200 μm) or higher laser power. The evaporation direction and therewith the number of spatters can be influenced by the inclination angle of the focused beam. In association with an increase of the inclination angle in forward direction the spatter behavior can be improved.
机译：薄盘激光器以及光纤激光器的特征在于它们强烈的重点和高效率。更强大的重点可以用于扩展应用范围。可以实现前所未有的高纵横比的焊缝，其才能从电子束焊接中已知直到现在。基于薄盘和光纤激光实验的结果，已在早期出版物中显示，即发散角对可实现的焊接深度的影响急剧增加，以较低的点直径。主要发生在前钥匙孔壁上的蒸发速率取决于钥匙孔的纵横比。由于这，由于较小的焦度直径（D {Sub} F =200μm）或更高的激光功率，产生的速度的数量及其喷射角度的范围减小。蒸发方向和其中蒸发方向可以受到聚焦光束的倾斜角度的影响。与向前方向上的倾斜角度的增加，可以提高飞溅行为。

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