Method for weld-joining attachment to outer panel of railway vehicle and car body side structure produced by the same
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United States of America Patent
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Apr 8, 2014
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N/A
app pub date -
Nov 30, 2006
filing date -
Nov 30, 2006
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Abstract
A weld-joining structure between an outer panel and an attachment is achieved, which is advantageous in terms of appearance, workability, and cost. To weld-join the outer panel and the attachments including, such as frame members and opening frames and opening frame members, which is a reinforcement or an interior or exterior member for use in the outer panel, the outer panel and the attachment placed on the outer panel are weld-joined by laser welding at overlapping portions of the outer panel and the attachment. The laser welding is performed along a polishing mark formed in one direction on an externally exposed-side surface of the outer panel and the attachment.
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