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Guangzhou Renlang Electronic Technology Co.,Ltd

Add: 2nd Floor, Building F, No.815, Congyun Road, Yuanxiatian, Yongtai, Baiyun District Guangzhou China

Contact: Frank Yan

Tel: 86-020-22929583

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Effect of the defocus amount of the fully automatic laser welding machine
Jan 24, 2018

Automatic laser welding machine usually takes a certain distance from the article one, because the focus of the spot center power density is too high, easy to evaporate into the hole. On each plane that leaves the focus, the power density distribution is relatively uniform. Defocus mode in two ways: positive and negative defocus. Focal plane is located above the workpiece is positive focus, on the contrary negative focus. According to the theory of geometrical optics, when the distance between the positive and negative defocus planes and the plane of the automatic laser welding machine are equal, the corresponding power density in the corresponding plane is approximately the same, but in fact the shape of the molten pool obtained is different. Negative defocus, you can get a greater penetration depth, which is related to the formation of the pool. Experiments show that the heating material begins to melt, forming a liquid-phase metal and asking questions vaporizing to form city-pressure steam and inject it at extremely high speeds to give off bright white light. In the meantime, the high-concentration vapor moves the liquid phase metal to the edge of the bath and forms a depression in the center of the bath. When the negative defocus, the material internal power density is higher than the surface, easy to form a stronger pool.

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    Guangzhou Renlang Electronic Technology Co.,Ltd

    Add: 2nd Floor, Building F, No.815, Congyun Road, Yuanxiatian, Yongtai, Baiyun District Guangzhou China

    Contact: Frank Yan

    Tel: 86-020-22929583

    Mob: 86-13826474063

    E-mail: renlang_beauty2@163.com

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