4. Dangers of Reflected Beam in Welding Process
Warning:
◎
Beware that during the welding process, numerous secondary laser beams,
known as "specular reflections," can be generated at various angles near the
laser's output aperture. Specular reflections occur when the main laser beam
reflects off the surface it is directed at, and can be produced due to the interaction
between the laser beam and the treated part. Although these secondary beams
are not as powerful as the laser's total emitted energy, they are potent enough to
cause harm to the eyes, skin, and surrounding materials.
Take extra precautions when working with highly reflective metals, such as
aluminum and copper, as they may cause some of the beam energy to reflect
away from the target weld site. Moreover, specular reflection can pose a threat to
the operator if any part of the beam is reflected from more than one surface.
Ensure that you are aware of the anticipated specular cone for each machined
part, and avoid looking at or placing any part of your body within the expected
specular cone.
Warning:
◎Operators and observers must always remain vigilant about potential reflections. If
the laser settings are not configured correctly to ensure the target portion melts,
increased reflection may result.
To ensure safe operating conditions, follow these steps:
1. Choose the suitable mode based on the material and thickness;
2. Select the right nozzle according to the joint geometry.
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