| 摘要 |
The invention relates to a process for roughening metal surfaces to improve adhesion of layers which are thermally sprayed thereon, in that in a first process step recesses or depressions (2) are introduced into the surface in a material-detaching or material-removing treatment so that the protruding metal of the surface forms raised microstructures (3), in particular projections, ridges, protuberances or bumps, these microstructures being reworked in at least a second process step by shaping and/or breaking so that a significant proportion of the structures form undercuts (4) in relation to the surface. |
