Fabrication of Rolling Stock Roof Block Using LDSS

In this study, a prototype of rolling stock roof block is constructed using LDSS(Lean Duplex Stainless Steel) to check the applicability of this new material to rolling stock structures. Roof block is composed of four components; roof panel, car line, pur line, cant rail. In the fabrication process of roof components, bending forming, roll forming and stretch forming are used. To assemble roof components, seam welding and spot welding is applied. As results, we can find that LDSS has equivalent fabricability and weldability compared to the conventional materials such as STS304 and STS301L.