Metal tube i.e. exhaust gas tube, for exhaust gas system of internal combustion engine in motor vehicle, has bended tube section comprising wall thickness varied in circumferential direction in non-deformable condition

摘要

The tube (2) has tube sections (3), which are fastened together and are separately manufactured from each other. One of the tube sections is bended and produced as a cast part, where the bended tube section is formed by a bending press. The bended tube section comprises a wall thickness (4) varied in a circumferential direction in a non-deformable condition. The tube sections are made from a profile laminated web material. An independent claim is also included for a method for manufacturing a bended metal tube.