Heat exchanger comprises a heat exchange block having tubes with tube ends and ribs arranged between the tubes, and lateral collecting boxes made by partially hydroforming a metallic semi-finished material

摘要

Heat exchanger comprises a heat exchange block (2) having tubes (5) with tube ends and ribs (6) arranged between the tubes, and lateral collecting boxes (3, 4) for introducing and removing a medium. One of the collecting boxes has a base with openings for receiving the tube ends, a lid and an inlet support (7) and an outlet support (11). The collecting boxes are made by partially hydroforming a metallic semi-finished material. Preferred Features: The semi-finished material is a rolled aluminum sheet. The base, lid and supports are made in one-piece by hydroforming. The semi-finished material is an extruded aluminum tube. The collecting boxes are less than 5 mm, preferably less than 4 mm thick.