CRACK REPAIR METHOD

Provided is a crack repair method of melting and eliminating a crack (Wa) generated in a steel material (W), the method including holding a tab plate (T) in surface contact with the steel material (W) in which the crack (Wa) is generated, thereafter continuously irradiating the tab plate (T) to a fi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NAKANISHI, Shota, YAMADA, Junko, OKITA, Daiki, MATSUMOTO, Naoyuki, INOSE, Koutarou
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Beschreibung
Zusammenfassung:	Provided is a crack repair method of melting and eliminating a crack (Wa) generated in a steel material (W), the method including holding a tab plate (T) in surface contact with the steel material (W) in which the crack (Wa) is generated, thereafter continuously irradiating the tab plate (T) to a first end portion of the crack (Wa) in the steel material (W) with a laser beam (L), and subsequently continuously irradiating the crack with the laser beam (L) along the crack (Wa) to a second end portion of the crack (Wa) to melt and eliminate the crack (Wa). Consequently, when eliminating the crack generated in a constituent member of an existing structure or a constituent member such as a machine component, the crack can be eliminated without forming a through hole in the constituent member.