METHOD OF FUSION WELDING OF METALS AND ALLOYS UNDERGONE POLYMORPHIC TRANSFORMATION

FIELD: methods of welding structures from metals and alloys undergone polymorphic transformation; may be used in fabrication of complicated large sheet structures. SUBSTANCE: plastic deformation of weld is carried out both in heating after welding, or in cooling during welding up to temperature 15-2...

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Bibliographische Detailangaben
Hauptverfasser:	MURAV'EV V.I, VOJTOV V.N, MAR'IN B.N, FROLOV P.V, BOGATOV JU.D, IVANOV JU.L
Format:	Patent
Sprache:	eng ; rus
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:	FIELD: methods of welding structures from metals and alloys undergone polymorphic transformation; may be used in fabrication of complicated large sheet structures. SUBSTANCE: plastic deformation of weld is carried out both in heating after welding, or in cooling during welding up to temperature 15-20 C below the temperature of allotropic transformation by a value equalling the height of reinforcement and weld penetration above base metal thickness. EFFECT: reduced labor input; increased operating efficiency; extended process potentialities of use of existent equipment for welding of structures; improved mechanical properties of welded joints such as strength, ductility and durability. 2 cl, 1 tbl