Method for producing a throttle

摘要

The invention relates to a method for producing a throttle (34) in a flow channel (24) that extends in a component (8), in particular a valve part, and that is used to control a medium from a control chamber. According to the invention, after formation of the flow channel (24) in the valve part (8), the throttle (34) is stamped by plastically deforming material in the vicinity of the flow channel (24) in the direction of the planned throttle (34), and the plastically deformed material acts in such a manner on a molding tool (50, 57, 58) introduced into the flow channel (24) in the position of the planned throttle (34) that a contour (57, 58) of the molding tool (50) defining the throttle (34) is formed in the flow channel (24). The plastic deformation is effected by a stamping die (40) moved with a defined force, while the contour of the throttle (34) is formed by a tip portion (57, 58) of a counter-die (50) used as the molding tool.

主权项

1. A method for producing a throttle (34) in a flow channel (24) of a component, the throttle (34) configured to control a flow rate of a medium through the flow channel (24) from a control chamber, the method comprising:
forming the flow channel (24) in the component (8); inserting a forming tool (50, 57, 58) in the flow channel (24); and stamping the component (8) in the vicinity the flow channel (24), while the forming tool (50, 57, 58) is in the flow channel (24), thereby deforming a portion of the flow channel (24) by plastically deforming material of the component (8) in the vicinity of the flow channel (24), wherein, as a result of the stamping, the deformed portion of the flow channel (24) forms a contour which defines the throttle (34), the contour narrowing toward a throttle point and widening downstream of the throttle point.