Key steps in aligning the laser beam--For welding machine！

What do you need to pay attention to in the laser focusing of the laser welding machine, SAN LASERA will take you to study below：

1. Adjust the beam expander: The beam expander is a lens system that magnifies the diameter of the laser beam. Adjusting the beam expander controls the diameter of the laser beam at the focal point. A larger beam diameter results in a shallower weld, while a smaller beam diameter results in a deeper weld. The ideal beam diameter depends on the material thickness and the desired welding characteristics.

2. Set the focus: The focus is the point where the laser beam is most concentrated. The focus position should be adjusted so that it is at or slightly below the surface of the material. This will produce a weld with the desired depth and width. If the focus is too shallow, it may result in incomplete fusion or excessive splashing. If the focus is too deep, it may result in excessive penetration or burn-through.

3. Align the beam: The laser beam should be aligned so that it is in the center of the joint to be welded. This can be done manually by adjusting the position of the laser head, or it can be done automatically using a computer control system. Some laser welding machines have built-in cameras or sensors that can detect the position of the joint and automatically adjust the laser head accordingly.

Related product links

Fiber Laser Welding Machine