Patent ID: 6712007
Filing Date: 2004-03-30
Classification: B61D,B61F

Abstract:
A railway car body, whereinmembers constituting the ends of the car body in the direction of travel are shock absorbers; each shock absorber is composed of plural extruded members having plural hollow portions; said plural extruded members are disposed so that their extrusion directions correspond to the longitudinal direction of the car body, adjacent extruded members in a width direction of the railway car body being welded to each other by a friction stir weld, formed by performing friction stir welding along the longitudinal direction of the car body corresponding to a direction of impact; a partition plate is disposed between two extruded members positioned adjacent to one another in the direction of extrusion of the members; and longitudinal ends of said two extruded members are welded to said partition plate.