Steel girders with corrugated webs have been shown in simulations to withstand dynamic loads well, using less material than conventional 1-girders. They have high out-of-plane stiffness, giving them good shear buckling resistance. Manufacturing the girders of high strength stainless steel allows for further weight reduction, as well as giving the girder corrosion resistance, eliminating the need for maintenance of a corrosion protective coating.

This girder type is, however, more difficult to manufacture and productive manufacturing methods for these girders is therefore what this thesis aims to investigate, especially suitable forming methods of the corrugated web and feasibility of joint tracking methods in robot welding. Three methods have been proposed as possible manufacturing methods of the corrugated web, each best suited for their own production volumes. The simplest of the three has been tested experimental ly with scaled down webs and has been evaluated to be feasible for production.

Welding the corrugated webs to the flanges is best done with a robot to ensure repeatability and the highest quality. This requires a joint tracking system, of which arc tracking and laser tracking have been found to be the most suitable. Both have been tested experimentally on the scaled down girders, and both were able to accurately track the joints. Thereby, efficient production of stainless-steel girders with corrugated webs has been shown to be ful ly possible, with robotic welding and joint tracking.