Patent ID: 7877162
Filing Date: 2011-01-25
Classification: G05B,Y10T

Abstract:
1. A process for manufacturing adapted, fluidic surfaces on gas turbine blades in a region of a flow inlet edge and/or a flow outlet edge of a gas turbine blade, comprising the steps of (a) generating a nominal milling program for manufacturing of fluidic surfaces in a region of a flow inlet edge and/or a flow outlet edge for an ideal gas turbine blade; (b) measuring an area of an actual gas turbine blade in a region of a flow inlet edge and/or a flow outlet edge thereof; (c) generating a milling program adapted to the actual gas turbine blade for manufacturing fluidic surfaces in the region of the flow inlet edge and/or the flow outlet edge for the actual gas turbine blade, wherein measured values determined in step (b) are used to adapt or change the nominal milling program generated in step (a) to the milling program for the actual gas turbine blade; and (d) manufacturing the fluidic surfaces on the actual gas turbine blade in the region of the flow inlet edge and/or the flow outlet edge by milling with the use of the milling program generated in step (c), wherein, in a first partial step, coarse-milling is used to remove material in the region of the flow inlet edge and/or the flow outlet edge, and wherein, in a second partial step, fine-milling is used to automatically round the flow inlet edge and/or the flow outlet edge, wherein the nominal milling program for the region of the flow inlet edge and/or the region of the flow outlet edge comprises several nominal milling paths including a first nominal milling path in a region of a suction side, a second nominal milling path in a region of a pressure side, and, interposed between the first and second nominal milling paths is a third nominal milling path for a transition region between the suction side and the pressure side, wherein each of the nominal milling paths comprises several nominal path points.