Tool for forming undulated heat exhange surfaces for heat exchangers by cold folding a sheet and method for making the forming profiles of such a tool

摘要

The forming tool for producing inserts from a deformable metal foil (2) between two undulated surfaces comprises upper (6) and lower (7) forming tools each constituted from two forming leaves (6a,6b) and a spacing leaf (6c). The lower tool comprises two forming leaves (7a,7b) between which is a spacing leaf (7c). The upper tool is mounted on a vertically movable upper tool holder (10) whilst the lower tool so mounted on a lower horizontally movable tool holder (11).