Patent ID: 8561918
Filing Date: 2013-10-22
Classification: B24C

Abstract:
1. A method to debur a surface of an interior of a workpiece by a nozzle using a high pressure fluid medium, the nozzle including: at least one nozzle passage branching off from a feed bore; the at least one nozzle passage, starting from a bottom end region of the feed bore, extending at an angle less than or equal to 90° to the feed bore in the inflow direction; and the bottom end region of the feed bore including a prominence which extends into the at least one nozzle passage and which constricts a transition region between the feed bore and the prominence located adjacent an exit of the at least one nozzle and the nozzle passage; and the method including the steps of directing the nozzle onto the interior surface, discharging the fluid medium from the at least one nozzle passage directly onto the interior surface, and deburring the interior surface of the workpiece; wherein the fluid medium discharging from the nozzle is admitted directly onto a burr formed at an edge between two interior surfaces; and wherein, when the burr formed at the edge is acted upon, the fluid medium strikes the burr at an angle which corresponds to an angle bisector, in a radial section, of the edge.