Layer Displacement in Laser Deposition
Layer displacement in laser cladding is a geometric error where successive layers are melted with a lateral offset. This leads to contour deviations and reduced load-bearing proportions.
Physikalisch-chemischer Wirkmechanismus
With laser cladding, layers of the material can be melted offset from each other. This happens when the laser beam isn't focused exactly on the desired position or when there are fluctuations in the movement.
Metallurgical Relevance & Welding Risks
Layer misalignment causes contour deviations and can impair the load-bearing capacity of the machined part. It can also lead to uneven stresses and thus to cracks or deformation, especially when laser welding is applied to thin metal walls.
Werkstattpraxis & Handlungsanweisungen
To avoid layer misalignment, the laser gantry must be precisely adjusted and stabilized. The movement of the laser must be continuously monitored and corrected. Accurate focusing on the workpiece is essential. For thin metal walls, additional protective measures such as careful build-up planning and control during laser welding should be taken.