Patent ID: 8020355

Claim:
A process for the manufacture of a reinforcement crossbeam ( 1 ) for the instrument panel of a motor vehicle, that guarantees rigidity and provides support for various devices, comprising: inserting into one main hollow metal body ( 2 ) with an elliptical cross-section a secondary body ( 3 ) which is also metal and hollow and has one of an elliptical or circular cross-section, aligning longitudinal axes of the main and secondary bodies to be coaxial or parallel, aligning a contour line of an outer wall ( 6 ) of the secondary body ( 3 ) so that said contour line is aligned with a contour line of an inner wall ( 5 ) of the main body ( 2 ), conforming the main body ( 2 ) so as to adapt to the secondary body ( 3 ) whereby only a single continuous portion of the contour line of the inner wall ( 5 ) of the main body ( 2 ) is in contact with a single continuous portion of the contour line of the outer wall ( 6 ) of the secondary body ( 3 ) and a remaining portion of each said contour lines of said main and secondary bodies are not in contact, and connecting the main body and the secondary body.