METHOD FOR PRODUCING A HEATING ELEMENT

摘要

The heating body is cut out of a metal sheet (1) and delimited by slots (2) obtained by punching on a plastic foam support (4). The opposite edges of said slots (2) are spaced from each other by deformation of the portion of the conductor (7) adjacent to said slots, said portion being obtained by the bevelled shape of the portion of the puncher (3) delimiting the cutting ridge and by the compressibility of the material forming the support (4). According to the manufacturing process of this heating body, its outer profile as well as the slots (2) are obtained by a single punching operation.