Heat exchanger tube, and corresponding heat exchanger production method

A method for obtaining a heat exchanger tube, wherein the method comprises:

• locally thinning a metal strip by pressing or rolling so as to define first portions of a thickness and second portions of a greater thickness,
• bending the metal strip in a region of at least one second portion, and
• forming a join in a region of at least two second portions of the metal strip so as to form a tube that has parallel first and second canals created by the bending of the metal strip, the first and second canals separated by bent ends of the metal strip, wherein the bent ends bend down from a top wall of the tube such that the bent ends of the metal strip bend perpendicular to a bottom wall of the tube and are parallel to each other, and edges of the bent ends of the metal strip face the bottom wall of the tube, and wherein the bent ends of the metal strip and a section of the bottom wall of the tube which the bent ends face are of a greater thickness than a thickness of the top wall and a portion of the bottom wall, and the greater thickness of the bent ends through the bends and to the edges of the bent ends is of uniform thickness;
• and
• the tube having a thickness at a rounded leading edge of the tube and a rounded trailing edge of the tube, which are respectively outside walls of the first and second canals, and the thickness of the outside walls is greater than the thickness of the top wall and a portion of the bottom wall.