Laser Cladding
Laser welding with powder filler creates a melt pool with a laser beam and simultaneously adds metal powder to repair or coat components. This process is precise and has low thermal load.
Physical-Chemical Working Principle
A laser beam creates a concentrated melt pool on the metal surface. Simultaneously, powder is fed, which expands in the melt pool and mixes with the molten metal. This process forms a dense, fine-structured joint.
Metallurgical Relevance & Welding Risks
This process prevents the occurrence of pores and has low heat input, resulting in minimal deformation and high mechanical strength. However, a lack of powder feed or inaccurate laser focusing can lead to joint defects or incomplete welds.
Workshop Practice & Operating Instructions
Use a high-quality laser beam with a stable powder feed system. Ensure that the laser focus is precisely aligned with the weld spot and that a constant speed is maintained. The powder amount should be adjusted according to the material and workpiece thickness.