WELD REPAIRING METHOD

PURPOSE:To improve the resistance to corrosion fatigue of a weld repair part by applying mechanically work hardening and residual compressive stress to the weld repair part after weld repairing. CONSTITUTION:The weld repair part of a material to be treated is first subjected to a weld repairing trea...

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Bibliographic Details
Main Authors MORITA KOUJI, DEWA AKIO, HASHIMOTO KIHACHI
Format Patent
LanguageEnglish
Published 07.05.1986
Edition4
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
COMBINED OPERATIONS
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
OTHER WORKING OF METAL
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
UNIVERSAL MACHINE TOOLS
WELDING
WORKING BY LASER BEAM
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Summary:PURPOSE:To improve the resistance to corrosion fatigue of a weld repair part by applying mechanically work hardening and residual compressive stress to the weld repair part after weld repairing. CONSTITUTION:The weld repair part of a material to be treated is first subjected to a weld repairing treatment with the same welding rod as the welding rod for the base metal after a surface defect removing treatment by a grinder, etc. and is then subjected to a surface finish treatment by a grinder and sandpaper, etc. Said part is in succession subjected to the treatment such as, for example, roller working, hammering, shotpeening or shot blasting to apply the work hardening and residual compressive stress thereto. The weld repair part is finally subjected to the finish polishing treatment, by which the weld repair is completed. The decrease in the resistance to corrosion fatigue of the weld repair part is prevented by the above-mentioned method.
Bibliography:Application Number: JP19840209507