WELDING METHOD AND STRUCTURAL MEMBER

To suppress occurrence of undercut.SOLUTION: A welding method comprises: a step of forming a lip part 2 protruding from a surface 1a of a base material 1 along a part, a weld-toe part of a weld bead on the surface 1a of the base material 1; and a step of arc-welding a weld path adjacent to the lip p...

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Bibliographische Detailangaben
Hauptverfasser:	TANABE YOSHIHIRO, INOSE KOTARO, KODAMA YUTAKA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	To suppress occurrence of undercut.SOLUTION: A welding method comprises: a step of forming a lip part 2 protruding from a surface 1a of a base material 1 along a part, a weld-toe part of a weld bead on the surface 1a of the base material 1; and a step of arc-welding a weld path adjacent to the lip part 2 to a part contacting at least the surface of the lip part 2 of an edge part Mb on a molten metal surface Ma, while giving effect of suspension by surface tension of the molten metal thereto.SELECTED DRAWING: Figure 1 【課題】アンダーカットの発生を抑制する。【解決手段】母材１の表面１ａにおける溶接ビードの止端部となる部分に沿って、母材１の表面１ａから突出したリップ部２を形成する工程と、リップ部２に隣接する溶接パスを、溶融金属表面Ｍａの縁部Ｍｂのうち少なくともリップ部２の表面と接する部分に溶融金属の表面張力による懸垂効果を作用させつつアーク溶接する工程と、を備える。【選択図】図１