Patent ID: 6936332
Filing Date: 2005-08-30
Classification: B23K,B23Q,Y10T

Abstract:
1. An extruded frame member for use in a friction stir welding, said extruded frame member including at least one plate, wherein: said extruded frame member is adapted to be arranged adjacent another extruded frame member so as to be abutted to said another extruded frame member such that the friction stir welding of said extruded frame member and said another extruded frame member can be carried out; at least one end portion of a width of said at least one plate of said extruded frame member is provided respectively with a thickened part which protrudes from a side of said at least one plate of said extruded frame member, in a thickness direction of said at least one plate of said extruded frame member; said extruded frame member further includes an extended part extending from said thickened part, substantially in parallel to said at least one plate of said extruded frame member, and extending beyond said at least one end portion of the width of said at least one plate of said extruded frame member, in a direction of the width of said at least one plate of said extruded frame member; said extended part of said extruded frame member is provided continuously and outwardly from said thickened part of said at least one end portion of a width of said at least one plate of said extruded frame member, said extended part being adapted to be subjected to friction stir welding together with at least one plate of said another extruded frame member; and said extended part of said extruded frame member further is arranged to overlap said at least one plate of said another extruded frame member when said extruded frame member is arranged adjacent said another extruded frame member such that the friction stir welding can be carried out, wherein said extended part is arranged to overlie said at least one plate of said another extruded frame member, relative to a direction in which friction stir welding of said extended part together with said at least one plate of said another extruded frame member is carried out wherein a triangular-shaped groove is formed between an outer surface of said thickened part of said extruded frame member and an outer surface of said extended part of said extruded frame member; and the friction stir welding is carried out through said triangular-shaped groove.