Friction welding of a single crystal component to a second...

B - Operations – Transporting – 23 – K

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B23K 20/12 (2006.01) C22C 19/03 (2006.01) C30B 11/00 (2006.01) C30B 33/00 (2006.01) F01D 5/30 (2006.01) F01D 5/34 (2006.01)

Patent

CA 2653854

A blade member (10) is oscillated in the direction of arrow A-A relative to a rim (12) of a disc (14). A forge force is applied radially and a weld is formed along line (16). The blade member (10) is formed from a face centred cubic (FCC) nickel based single crystal alloy, such as CMSX-4 of Cannon-Muskegon Corporation. The orientation of the single crystal blade member (10) is controlled to maximise the stress on the (111) slip plane. By maximising the stress on the (111) slip plane the in-plane friction forces and the forge force are minimised. Minimising the in-plane forces enables the single crystal blade member (10) to be successfully welded to the rim (12) of the disc (14).

La présente invention concerne un élément de lame (10) que l'on fait osciller dans la direction de la flèche A-A par rapport à une périphérie (12) d'un disque (14). Une force de forge est appliquée radialement et une soudure est formée le long de la ligne (16). L'élément de lame (10) est formé à partir d'un alliage monocristallin à base de nickel cubique à faces centrées (FCC), tel qu'un CMSX-4 de Cannon-Muskegon Corporation. L'orientation de l'élément de lame monocristallin (10) est contrôlée de manière à maximiser la contrainte sur le plan de glissement (111). En maximisant la contrainte sur le plan de glissement (111), les forces de frottement dans le plan et la force de forge sont minimisées. Minimiser les forces dans le plan permet à l'élément de lame monocristallin (10) d'être soudé avec succès à la périphérie (12) du disque (14).

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