Patent ID: 6640597
Filing Date: 2003-11-04
Classification: B23P,F01D,F05D,Y10T

Abstract:
A method for reducing variance in the coolant consumption of components of a turbo machine, wherein said components include one or more holes for the passage of a coolant, said method comprising:reducing a surface roughness present inside the holes by mechanical finishing, the mechanical finishing being performed by reshaping rough points that cause the surface roughness, wherein said reshaping is performed with an approximately pin-shaped tool, said approximately pin-shaped tool having one of a rotationally-symmetrical design or a non-rotationally-symmetrical design, and said tool being inserted manually or by machine into a hole and moved inside the hole in order to level the rough points, said reshaping being performed in the case of a tool having a non-rotationally-symmetrical design with a translationally oscillating movement in the direction of the longitudinal axis and a rotating movement around the longitudinal axis, and in the case of a tool having a rotationally-symmetrical design with a translationally oscillating movement in the direction of the longitudinal axis and a translationally oscillating movement transversely to the longitudinal axis.