Systems and methods are provided for viscous and/or chemically erosive flow machining of work pieces. In certain examples, a tool for flow machining may be disclosed. The tool may include a cavity configured to receive a work piece and one or more inlets and outlets for viscous media flow. Viscous media and/or chemically erosive media can be flowed into the cavity and, via a media flow path, can be used to machine the work piece.

Systems and methods are provided for viscous and/or chemically erosive flow machining of work pieces. In certain examples, a tool for flow machining may be disclosed. The tool may include a cavity configured to receive a work piece and one or more inlets and outlets for viscous media flow. Viscous media and/or chemically erosive media can be flowed into the cavity and, via a media flow path, can be used to machine the work piece.

An abrasive solution for finishing a metal part is provided. The abrasive solution includes abrasive particles suspended in a solution. The abrasive particles are configured to abrade a surface of the metal part. The abrasive particles are substantially non-responsive to a magnetic field. The abrasive solution also includes magnetic particles suspended in the solution. The magnetic particles are configured to respond to a magnetic field by aggregating together such that a local flow pattern of the solution changes in response to the aggregated magnetic particles.

Disclosed is a flow lapping device for smoothing at least one surface of at least one workpiece, preferably an impeller, by an abrasive fluid including at least one holding device for holding the workpiece, in particular including at least one holding plate, as well as at least one encasing device arranged around the holding device and within which the fluid can flow, wherein the holding device is at least partially supported, in particular fixed, by at least one inner wall section of the encasing device.

Disclosed is a flow lapping device for smoothing at least one surface of at least one workpiece, preferably an impeller, by an abrasive fluid including at least one holding device for holding the workpiece, in particular including at least one holding plate, as well as at least one encasing device arranged around the holding device and within which the fluid can flow, wherein the holding device is at least partially supported, in particular fixed, by at least one inner wall section of the encasing device.

The present invention relates to a method for smoothing a surface of a component, in which a component is placed in a liquid-solids mixture; a relative movement is produced between the liquid-solids mixture and the component; thus there is a flow of the liquid-solids mixture along the surface; wherein there is provided in the liquid-solids mixture a guide surface, along which the liquid-solids mixture flows, wherein a directional component toward the surface is imposed on the flow.

System for reduction of dimensional end-taper in abrasive blasted tubes has a pressurized chamber maintaining higher air pressure inside the chamber than atmospheric pressure, an air-exit port allowing gases to exit the chamber at a controlled rate, a valve restricting passage of gases from the air-exit port, a pressurized membrane through which the tube passes creating a seal, a gauge port where pressure inside the pressurized chamber is monitored and a media-exit port allowing evacuation of abrasive blast media particles after being expelled from the exit-end of the tube. The system addresses dimensional end-taper as high back pressure at the exit end of the tube reduces velocity of the gases and abrasive particles carried in it, thereby reducing erosion of the inner walls of the tube near its exit end. The system can be employed with a wide range of tube sizes and in combination with several abrasive blasting techniques.

A method for abrasive flow machining includes moving an abrasive media through a high-aspect passage of a workpiece. Local pressure of the abrasive media is increased at target abrasion surfaces of the high-aspect passage using a passage geometry that is configured to direct flow of the abrasive media into the target abrasion surfaces such that the target abrasion surfaces are preferentially polished by the abrasive media over other, non-targeted surfaces of the high-aspect passage at which the flow of the abrasive media is not directed into.

A method for abrasive flow machining includes moving an abrasive media through a high-aspect passage of a workpiece. Local pressure of the abrasive media is increased at target abrasion surfaces of the high-aspect passage using a passage geometry that is configured to direct flow of the abrasive media into the target abrasion surfaces such that the target abrasion surfaces are preferentially polished by the abrasive media over other, non-targeted surfaces of the high-aspect passage at which the flow of the abrasive media is not directed into.

A method and apparatus is presented. A structure having an interior channel is formed using additive manufacturing equipment. A viscous media containing abrasive particles is sent through the interior channel using abrasive flow machining equipment to form a desired surface roughness for the interior channel.