Blade ring segment having an annular space delimiting surface having a wavy height profile

摘要

A method for machining a workpiece. An electrode is moved linearly in the direction of the workpiece to cause material to be removed from the workpiece, at least one end of a surface of the workpiece running obliquely to a guide edge of the electrode machining this surface. The electrode is moved at least partially with the electrode surface parallel to the surface, so that during the approach to the workpiece, areas of the workpiece having an irregular edge machined at a different intensity are formed, the difference in intensity of machining on the edge of the surface to be machined being compensated in that the surface to be machined is provided with a height profile adapted to the shape of the end of the surface to be machined. A blade ring segment and blade ring is also disclosed.

主权项

1. A blade ring segment for a blade ring of a turbomachine comprising:
at least one shroud, the at least one shroud delimiting an annular space with a side of the shroud facing a blade profile of a blade of the blade ring segment radially and defining at least one annular space delimiting surface on a pressure side or an intake side of the blade profile, the at least one annular space delimiting surface being designed with a wavy height profile, wherein the wavy height profile extends from a Z-shaped end edge of the at least one shroud, the wavy height profile having peaks in the area of the protrusions of the Z-shaped end edge and having valleys in the area of the indentations of the Z-shaped end edge, and the valleys and the peaks extending in the circumferential direction of the blade ring.