Procedure for the generation of a edging in a sheet metal element, sheet metal element manufactured by this procedure, as well as a device for pre-profiling a sheet metal element

摘要

Procedure for the generation of a edging in a sheet metal element (100), which comprises the following stages of the process: - pre-profiling of the sheet metal element (100) such that on a first side (104) of the sheet metal element (100) a cavity (106) is generated which extends along a desired edging line and on a second side (108) of the sheet metal element (100) a projection (110) opposite the cavity (106) is generated and which is extends in the same way along the desired edging line; and - bending of the sheet element (100) in the edging line, along which the cavity (106) and the projection (110) extend for the generation of the edging.