Method for increasing the stability and/or load carrying...

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 20/12 (2006.01) B23P 6/04 (2006.01)

Patent

CA 2535823

The invention relates to a method for at least locally increasing the stability and/or load carrying ability of work pieces (10), whereby first of all a first work piece (11) is produced by means of a conventional manufacturing method. The inventive method is characterized by the following steps: a) the first work piece (11) is then provided with a hole (13) in the area where stability and/or load carrying ability are to be increased; b) a second work piece (12) which consists of a stability- and/or load carrying ability-increasing material is introduced into the hole (13); c) in this state, the second work piece (12) is rubbed relative to the first work piece (11) according to the friction welding method until the welding temperature is reached which lies below the melting temperature of the two work pieces (11, 12), thereby obtaining a friction-welded connection between the first work piece (11) and the second work piece (12) and producing the work piece (10).

L'invention concerne un procédé servant à augmenter, au moins localement, la résistance et/ou la limite de charge de pièces usinées (10), selon lequel une première pièce (11) est d'abord produite selon un procédé de fabrication conventionnel. Le procédé selon l'invention présente les étapes suivantes : on pratique d'abord un trou (13) dans la première pièce (11), dans la zone où il faut augmenter la résistance et/ou la limite de charge ; on introduit ensuite dans le trou (13) une deuxième pièce (12) constituée d'un matériau augmentant la résistance et/ou la limite de charge ; on frotte enfin, dans cet état, la deuxième pièce (12) contre la première pièce (11) selon la méthode du soudage par friction jusqu'à ce que soit atteinte la température de soudage inférieure à la température de fusion des deux pièces (11, 12), de façon à obtenir une liaison par soudage par friction entre la première pièce (11) et la deuxième pièce (12) afin de réaliser la pièce voulue (10).

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