Method and arrangement for maintenance of gas-turbine blades

Abstract

The invention relates to a method and an arrangement for re-creation of an optimized contour of the leading edges of gas-turbine blades, in which a gas-turbine blade (2) is passed by one or more grinding machine or machines (71, 71′) with the aid of a computer-controlled robot (10). The desired contour is achieved by following a movement procedure which is stored in a data memory (21). The stored movement procedure is designed to convert a blade from a previously determined statistical mean wear state to a likewise previously determined or calculated design contour. The contact pressure of the gas-turbine blade on the grinding disk or disks (71, 71′) is measured and is taken into account in the movement procedure of the robot (10) such that the desired design contour is achieved irrespective of the initial contour and wear of the grinding disks.

Dependencies are inferred from the claim text.