Hollow section and a process for its manufacture

摘要

A hollow section made of a metal alloy and having at least one hollow space which is delimited by walls featuring end lengths forming corner regions. The walls exhibit at least in part different thicknesses in cross-section. The thickness of the end length of the walls diminishes in a continuous manner to a smaller thickness. The facing and approximately parallel outer walls of the hollow section are joined on the inside by at least one integral inner wall. The outer walls along with the inner walls delimit a plurality of hollow chambers and the walls of each chamber exhibit in each case a middle length of constant thickness and at both ends thereof an end length of increasing thickness.