Laser Beam Hybrid Welding
Laser hybrid welding combines laser and arc. The laser provides depth, the arc bridges gaps. This improves the quality and efficiency of the welding process.
Physical-Chemical Mechanism of Action
Laser hybrid welding uses the high temperatures of a focused laser to achieve deep penetration. In parallel, an arc welding process is used to bridge gaps or nozzles. This combines the advantages of both techniques: the deep welding of the laser and the gap-bridging capability of the arc.
Metallurgical Relevance & Welding Risks
This method improves weld quality through uniform deformation and reduced stress buildup. It reduces the risk of cracks and hardness issues, especially in difficult materials or complex geometries. However, inaccurate laser or arc frequency settings can lead to uneven welds and increase overall costs.
Workshop Practice & Operating Instructions
To successfully perform laser hybrid welding, the following steps must be observed:
• Laser Setting: The laser must be set to a depth that supports the desired weld. This involves the laser power and its focusability.
• Arc Frequency: The frequency of the arc should be adjusted to bridge gaps or nozzles without removing too much material. This requires careful control of the beam intensity and width.
• Temperature Control: The temperature during welding must be precisely controlled to ensure uniform deformation and low stress buildup. This can be achieved through special cooling devices or systems.
• Material Compatibility: It is important that the material used is compatible with both welding processes. This concerns both chemical and mechanical compatibility.