DISSIMILAR MATERIAL JOINED BODY

PROBLEM TO BE SOLVED: To provide a dissimilar material joined body in which a sound joined part can be formed by reducing the thermal stress between a metallic material and a hard material caused by a difference in the amount of thermal shrinkage as much as possible when they are joined so as to com...

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Bibliographische Detailangaben
Hauptverfasser:	TATSUTA OSAMU, OKUMURA MASAYOSHI, TSUTSUMI KAZUYUKI
Format:	Patent
Sprache:	eng
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:	PROBLEM TO BE SOLVED: To provide a dissimilar material joined body in which a sound joined part can be formed by reducing the thermal stress between a metallic material and a hard material caused by a difference in the amount of thermal shrinkage as much as possible when they are joined so as to compose a dissimilar material joined body, and solving the problem, e.g., that deformation or cracks are produced or the joined part is peeled. SOLUTION: The dissimilar material joined body is composed by joining a metallic material having the property of producing martensitic transformation and a hard material in which martensitic transformation is produced. (a) The metallic material is selected so as to set the phase transformation temperature region of the metallic material in accordance with the phase transformation temperature of the hard material, or (b) the hard material is selected so as to set the phase transformation temperature region of the hard material in accordance with the phase transformation temperature of the metallic material. COPYRIGHT: (C)2011,JPO&INPIT