Cross member, chassis frame, vehicle, assembling, and disassembling methods associated

A cross member for a chassis frame of a vehicle, extending along a transversal axis, the cross member comprising a center piece comprising a first part and a second part, the first part comprising:

• a first top flange extending along the transversal axis;
• a first bottom flange, parallel to the first top flange;
• a first web, connecting the first top flange to the first bottom flange;
• and
• a first end surface, the first end surface bordering the first top and bottom flanges, and the first web at one end of the first part;
• the second part comprising:
• a second top flange, extending along the transversal axis, aligned with the first top flange along the transversal axis;
• a second bottom flange, parallel to the second top flange, and aligned with the first bottom flange along the transversal axis;
• a second web, connecting the second top flange to the second bottom flange and aligned with the first web along the transversal axis;
• and
• a second end surface, aligned with the first end surface along the transversal axis, the first and second end surfaces being parallel to each other, the first and second end surfaces facing each other along the transversal axis;
• wherein a portion of the first end surface, when in projection in a plane parallel to the first top flange, is oblique in relation to a plane perpendicular to the transversal axis;
• the cross member further comprising a reinforcement member in contact with the first and second webs and secured to the first and second webs.