Patent ID: 7036707

Claim:
An extruded frame member adapted to be welded by friction stir welding, comprising a plate having plural ribs at only one face of said-plate, said plate having a second face opposite to said one face, an end of the plate extending substantially in a plane between said one face and said second face, wherein at least one end portion, extending from said end of said plate in a width direction, of said extruded frame member, is provided with a raised portion which projects to an outer side in a thickness direction of said extruded frame member, and is provided in a side of said plural ribs, from said one face on which said plural ribs are provided of said plate, said raised portion being where said friction stir welding is carried out, wherein said at least one end portion, including said raised portion, is adapted to be friction stir welded from an upper side of said raised portion; and said raised portion includes a first part that extends above said end portion and a second part that extends in a direction substantially in parallel with said end portion of said extruded frame member and beyond said end of said plate, said second part being formed continuously with said first part.