| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic welding method in which a multi-layer weld joint is split, and build-up welding is performed to perform a welded structure without welding deformation. SOLUTION: A plurality of weld joints of the same build-up number are provided, the layer for preventing the deformation of a joint component member of the weld joints is split in advance, and these split layers are successively subjected to the build-up welding according to a preset program.
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