Method and device for forming a tube in a tube plate

摘要

Hydraulic expansion of the tube (3) and formation of the rounded tube inlets is carried out with the same hydraulic equipment in a single operation and tube inlets are formed from the ends of the same tubes, Preferably tubes are passed through bores (2) of the tubeplate (1) and are expanded over the depth of the tubeplate, while projecting ends (10) are rounded. Also claimed is equipment for carrying out the method with mandrel (4) and fluid channels (5, 6).