Glass Bead Peening
Glass bead blasting applies microcrystalline glass beads to metals to create compressive residual stresses and homogenize the surface. This prevents material removal.
Physicochemical mechanism of action
Glass bead blasting applies microcrystalline glass beads to metals. These beads have high hardness and can create microscopic compressive residual stresses on the surface without material removal. The microstructures are simultaneously homogenized, improving optical quality.
Metallurgical relevance & welding risks
Creating defined compressive residual stresses by glass bead blasting can improve the toughness and deformability of the material. However, incorrect application or excessive energy can cause surface damage, affecting weld quality.
Workshop practice & instructions
Use glass bead blasting when preparing metal plates for welding. Ensure the energy settings are correct (usually between 50 and 100 W). The duration of blasting is typically 3 to 5 seconds per square centimeter. Always monitor the surface for changes and adjust settings if needed.