Method for assembling metal parts with an induction-heated...

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B23K 25/00 (2006.01) B23K 1/002 (2006.01) B23K 1/19 (2006.01) B23K 13/01 (2006.01) B23K 35/02 (2006.01)

Patent

CA 2376176

The invention concerns a method for assembling metal parts without any risk of their being melted, when assembled at high temperature. It consists in using as filler material a powder whereof the melting point is not less than the melting point of the material from which the parts are made, when they are of similar type, or whereof the melting point is not less than that of the part whereof the melting temperature is the lowest when the parts are of different types. The assembly is induction-heated, the powder being melted without melting the parts by virtue of a temperature higher than that of the parts. The invention is useful for assembling any metallic parts made of metals or metal alloys and particularly useful for assembling parts of the same type using a powder of the same material.

Le procédé permet d'assembler des pièces métalliques sans risque de fusion de celles-ci, lors de l'assemblage à haute température. Il consiste à utiliser comme matériau d'apport une poudre dont la température de fusion est égale ou supérieure à la température de fusion du matériau constituant les pièces, lorsqu'elles sont de même nature, ou dont la température de fusion est égale ou supérieure à celle de la pièce dont la température de fusion est la plus faible dans le cas de pièces de natures différentes. L'ensemble est chauffé par induction, la fusion de la poudre étant obtenue sans fusion des pièces grâce à une température supérieure à celle des pièces. Application à l'assemblage de toutes pièces métalliques constituées de métaux ou d'alliages métalliques et application préférentielle à l'assemblage de pièces de même nature en utilisant une poudre du même matériau.

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