| 摘要 |
<p>The present invention relates to a process for the manufacture of a crossbeam and the respective crossbeam (1), intended to reinforce the instrument panel of a motor vehicle, guarantee its rigidity and support various devices, the said process being characterised by an alignment between only one main hollow metal body (2) with an elliptical cross-section and one secondary body (3) which is also metal and hollow and has an elliptical or circular cross-section, in that in this alignment the longitudinal axes of the said bodies are coaxial or parallel, in that also in this alignment the contour line of the outer wall of the secondary body is confined by the contour line of the inner wall of the main body, in that prior to this alignment the main body is conformed so as to adapt to the secondary body and in that, in the final phase, the two bodies are connected.</p> |
