Performing mechanical operations upon components

摘要

Mechanical operations are performed upon components having initial surface shapes or configurations, in order to achieve a desired surface shape or configuration. An engineering model is identified that defines a preferred surface shape or configuration for a component. A description of at least part of the initial configuration of the component is derived and a component model is defined by manipulating the engineering model with reference to the description. Thereafter, in response to said component model, mechanical operations are performed upon the component, thereby modifying the component so as to bring it into line with the original engineering model while at the same time being sympathetic to part of the initial configuration. The procedure may be used for repair of turbine blades taking account of any distortion occuring in previous use.