Composite profile with a carrier body of alloy material and a profile strip and a method for production of the composite profile

A composite profile comprising:

• (1) an extruded metal alloy carrier profile comprising a rail head having a longitudinal axis B, the rail head comprises a surface and two longitudinal edges extending parallel to the longitudinal axis B and (2) a metal channel shaped profile strip comprising a base portion spanning the surface of the rail head and parallel side legs which lie on the longitudinal edges of the head rail, an insert rod is provided on each of the parallel side legs which lie on the longitudinal edges of the head rail and engage in lateral slots provided in the two longitudinal edges of the rail head, wherein a top surface of the carrier profile is curved semicircular in cross-section and its zenith is arranged at a cross-sectional longitudinal axis (Q) opposite a flat under face of the profile strip such that in an assembled arrangement of the profile strip and the carrier profile with a weld scan, a mechanical pretension is generated, and wherein, the insert rod is of approximately V-shaped cross-section that comprises one channel leg overlapping a significant portion of a vertical inside face of the side leg of the profile strip approximately axially parallel and another channel leg which is directed towards the longitudinal axis (B) of the rail head is mounted in the slot tilted at an angle (w) to the cross-sectional longitudinal axis (Q) of the carrier profile.