C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 47/06 (2006.01)
Patent
CA 2710451
The present invention relates to a process for manufacturing a metal part reinforced with ceramic fibres, in which: a housing is formed for an insert in a main metal body (2) having an upper face (21); an insert (3) formed from a bundle of fibres with a metal matrix is placed in the housing; a metal cover (4) is placed on the main body (2) so as to cover the insert (3); the cover is welded onto the metal body; a hot isostatic pressing operation is carried out; and the part obtained is machined to the desired shape. The process is characterized in that the housing has the shape of a notch of L-shaped cross section with a face (23P) perpendicular to the upper face (21) and a face (23S) parallel to the upper face (21), the cover (4) having an internal notch (43) of L-shaped cross section, this having a shape complementary to that of the metal body with said insert, the cover (4) being shaped on the outside so that the pressure forces are exerted perpendicular to said faces of the notch (23).
La présente invention porte sur un procédé de fabrication d'une pièce métallique renforcée de fibres céramiques, selon lequel on forme dans un corps (2) métallique principal, présentant une face supérieure (21), un logement pour un insert, on dispose un insert (3) formé d'un faisceau de fibres à matrice métallique dans le logement, on place un couvercle métallique (4) sur le corps principal (2) de façon à recouvrir l'insert (3), on soude le couvercle sur le corps métallique, on procède à la compression isostatique à chaud et on usine la pièce obtenue à la forme souhaitée., Le procédé est caractérisé par le fait que le logement a la forme d'une encoche (23) à section en L avec une face (23P) perpendiculaire à la face supérieure (21) et une face (23S) parallèle à la face supérieure (21), le couvercle (4) présentant une encoche interne (43) à section en L et de forme complémentaire à celle du corps métallique avec ledit insert, le couvercle (4) étant conformé extérieurement de façon que les efforts de pression s'exercent perpendiculairement aux dites faces de l'encoche (23).
Ducos Dominique
Masson Richard
Goudreau Gage Dubuc
Messier-Dowty Sa
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