METHOD OF JOINING BY WELDING OUTER PANEL/ATTACHMENT OF ROLLING STOCK AND SIDE STRUCTURE MADE THEREBY

摘要

In the joining by welding of outer panel (3) with attachments, such as skeletal members (1,2), open frame and open frame material (42a,43a), for reinforcement or interior exterior finishing thereof, the region where the outer panel (3) and each attachment (1,2,42a,43a) applied thereto are superimposed one upon the other is subjected to laser welding along the polishing line aligned in one direction on the surfaces on the externally exposed side of the outer panel (3) and attachment (1,2,42a,43a). Thus, the joining by welding of the outer panel (3) with the attachment (1,2,42a,43a) is accomplished, thereby realizing an outer panel/attachment welding joined structure that is advantageous in appearance, working efficiency and cost.