Hybrid welding combines the advantages of a laser with those of another heat source. Polychromatic light sources, e.g. halogen emitters, are used as the secondary heat source. These generate a broad-band emission spectrum.
Whilst the laser light passes through the transparent upper welding partner almost unhindered, the heat field generated by the halogen spotlights give rise to a homogeneous temperature gradient.
LPKF Laser Welding assembles the complete welding head on a multi-axis robot to give the system a very high level of flexibility.
Hybrid Welding - Animation
The material is first warmed up slowly, then melted by the laser beam, before cooling down slowly again under the continuous influence of the halogen emitter. The additional heat source speeds up welding and prevents stresses building up in the material.
The benefits of hybrid welding:
tempering after welding is no longer required or minimal
no upper die needed
no wear and tear, and therefore no contamination
high productivity and flexibility
Laser hybrid welding can also be used to process large, three-dimensional components. Its very special qualities come to the fore when the welding seam is directly visible and very high aesthetic standards have been specified for the product. Practical applications include those in the automotive industry such as welding tail lights, head lights, speedometers, etc.
