Method for repairing workpieces such as turbomachine vanes...

Details Method for repairing workpieces such as turbomachine vanes... Method for repairing workpieces such as turbomachine vanes...

B - Operations, Transporting

23

P

B23P 6/00 (2006.01) F01D 5/00 (2006.01) G05B 19/4097 (2006.01)

Patent

CA 2684954

The invention relates to a method for repairing by machining a workpiece (1) such as the vane of a turbomachine, from a known process of the part (B), wherein said method includes the step of deforming (32) the profile (B) by a morphing process so that the deformed profile interpolates a cloud of points (A) measured on the part. The deformation of the profile (B) includes a comparison of each having an excessive or non-sufficient thickness (20) on the part to be machined (1) with elementary deformation configurations (CED) (5) each in the form of a mapping and points portion, the elementary deformation configurations (CED) (5) being stored in a database (100), and the database (100) associating for each elementary deformation configurations (CED) (102) the parameters of the morphing function (101).

L'invention concerne un procédé de réparation par usinage d'une pièce à usiner (1), telle qu'une aube de turbomachine, à partir d'un profil connu de la pièce (B), le procédé comprenant une étape de déformation (32) du profil (B) par un procédé de morphing pour que le profil déformé interpole un nuage de points (A) mesuré sur la pièce. La déformation du profil (B) comprend une comparaison de chaque zone en surépaisseur ou sous épaisseur (20) de la pièce à usiner (1) à des configurations élémentaires de déformation (CED) (5) se présentant chacune sous la forme d'une portion de maillage et de points, les configurations élémentaires de déformation (CED) (5) étant classées dans une base de données (100), la base de données (100) associant pour chaque configuration élémentaire de déformation (CED) (102) les paramètres de la fonction de morphing (101).

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