Mitsubishi Heavy Industries Limited

Akinori Yamaguchi

Nobuyoshi Komai

Masaaki Fujita

Takumi Tokiyoshi

Masaki Honda

Fumitoshi Sakata

Fumio Nishi

Toshiaki Nishio

Hiroyuki Ohyama

Kimihiko Tominaga

Koichi Teshima

Eiji Murakami

A repair welding method according to at least one embodiment is for a member in which a first end and a second end of a parent material are connected by welding and includes: a step of removing a portion including at least a part of a first heat-affected zone of an existing welded portion of the member; and a step of performing repair welding after removing the portion. In a cross-section including the parent material and the existing welded portion, all intersection portions between the first heat-affected zone of the existing welded portion and a second heat-affected zone due to the repair welding have an intersection angle between the first heat-affected zone and the second heat-affected zone of 70° to 110°.

Repair welding method

Growing community of inventors

Yokohama, Japan

Akinori Yamaguchi