Patent ID: 11878392
Assignee: BASF SE
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method for the hydroerosive processing of components, in which a liquid comprising grinding particles flows over surfaces of the component, in a device having a channel through which the liquid comprising grinding particles flows under pressure and in which the component to be processed is received, and in which a valve, with which the flow of the liquid can be adjusted, is positioned in front of the component in the flow direction, comprising the following steps:
(a) closing the valve in front of the component and generating a predetermined pressure in the liquid comprising the grinding particles;
(b) opening the valve in front of the component and setting up a first volumetric flow of the liquid comprising the grinding particles, which is from 5 to 80% less than a product of a minimum setpoint cross-sectional area flowed through and a maximum permissible speed at this position, without the predetermined pressure generated in step (a) being changed;
(c) measuring a pressure difference which is set up between a position in front of the component to be processed and a position behind the component to be processed in the liquid comprising the grinding particles;
(d) increasing the volumetric flow of the liquid comprising the grinding particles until the volumetric flow corresponds to the product of the minimum setpoint cross-sectional area flowed through and the maximum permissible speed at this position, as soon as the pressure difference measured in step (c) has decreased by from 5 to 80%;
(e) closing the valve in front of the component and terminating the flow, as soon as the volumetric flow in step (d) corresponds to the product of the minimum setpoint cross-sectional area flowed through and the maximum permissible speed at this position.