process for hydro erosive verrunden an edge of a substrate and use of these

摘要

In a method for the hydro-erosive rounding of an edge of a part, particularly an edge in a duct of a high pressure-resistant part, and a use thereof, a liquid to which abrasive elements are added is directed along the edge that is to be rounded. In order to optimize the result of the rounding process, a high-viscosity liquid is used as a liquid ( 10 ). The inventive method is used for rounding parts of a fuel injection system.