| 摘要 |
A welded structure is provided to prevent brittle cracks from propagating by disposing a welded zone that connects bonding plates to each other at a predetermined region other than a portion between a welding seam and a bonded plate. A welded structure comprises a first bonding plate, which is obtained by welding two metal plates, and a second bonding plate, which is bonded on the first bonding plate through a welding process. A welding seam(6) between the two metal plates extends up to a zone around which the first and second bonding plates are bonded to each other. In the extension direction of the welding seam, the welding seam does not make contact with the second bonding plate. A welded zone that connects the first bonding plate to the second bonding plate is disposed in a predetermined region other than a region between the welding seam and the second bonding plate.
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