Manufacturing method for closed vane wheels
AssigneeSulzer Markets and Technology AG
InventorWerner Jahnen
Life of this patent
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Abstract
In a manufacturing method for closed vane wheels having vanes (2, 2a) between which vane channels (3) are formed which have a predefined shape, openings for the vane channels are prepared by means of a program-controlled chip forming cutting apparatus in a blank in a chip forming cutting process. In the manufacturing method, in a further workstep, electrodes (11) of an apparatus for spark erosion or for electrochemical stock removal are additionally introduced into the openings and a part of the predefined shape of the vane channel (3) is manufactured by means of spark erosion or by means of electrochemical stock removal.
Claims15
A manufacturing method for closed vane wheels having vanes (2, 2.1, 2.2, 2a, 2.1a, 2.2a), between which vane channels (3, 3.1, 3.2) are formed which have a predefined shape, with openings for the vane channels being prepared in a blank in a chip forming cutting process by means of a program-controlled chip forming cutting apparatus, characterized in that electrodes (11) of an apparatus for spark erosion or for electrochemical stock removal are introduced into the openings in a further workstep and a part of the predefined shape of the vane channels (3, 3.1, 3.2) is manufactured by means of spark erosion or by means of electrochemical stock removal.
Dependencies are inferred from the claim text.