Patent ID: 8881392

Claim:
A method of using machining to repair a component workpiece, from a known and undamaged profile of the component, the method comprising: acquiring coordinates of points on an envelope of the component workpiece, the set of points forming a cluster of points; comparing the known and undamaged profile with the cluster of points in order to define zones on the component workpiece that have excess or insufficient thickness; deforming the profile using a morphing method so that the deformed profile interpolates the cluster of points, the deformation of the profile using a morphing function, and machining the component workpiece using a machine tool parameterized on the basis of the morphing function, wherein the deforming of the profile involves comparing each zone of the component workpiece that has excess or insufficient thickness with elementary deformation configurations (EDCs) each in the form of a mesh portion simulating the known and undamaged profile, and previously measured points simulating points of the cluster of points obtained from a damaged workpiece other than the component workpiece, the elementary deformation configurations (EDCs) being filed in a database, identifying an EDC from the database of EDCs for the zone of the component workpiece based on the comparison of the zone of the component workpiece and the EDCs filed in the database, using expert-defined EDC deformation parameters for the identified EDC to determine the morphing function, the parameters being stored in the database, and defining the morphing function required to deform the known and undamaged profile portion of the identified EDC to match the previously measured points portion of the identified EDC, and wherein the expert-defined EDC deformation parameters comprise coordinates of at least one control point to be displaced on the mesh portion simulating the known and undamaged profile, and at least one displacement vector for the at least one control point to displace to deform the mesh portion and to reduce differences between the mesh portion and previously measured points simulating points of the cluster of points obtained from a damaged workpiece other than the component workpiece.