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A method and apparatus for finishing a surface of a component

A technology for equipment, components, applied in the field of polishing the surface of components, which can solve the problems of accumulation, slow method, component contamination, etc.

Pending Publication Date: 2022-02-08
ROLLS ROYCE PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In particular, inner channels can be polished by abrasive flow machining (AFM), but this method is slow and can lead to accumulation of abrasive particles at bends and narrow passages, or contamination of components with abrasive particles

Method used

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  • A method and apparatus for finishing a surface of a component
  • A method and apparatus for finishing a surface of a component
  • A method and apparatus for finishing a surface of a component

Examples

Experimental program
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Embodiment Construction

[0049] refer to figure 1 , a gas turbine engine generally indicated at 10 having a main axis and an axis of rotation 11 . The engine 10 comprises an air inlet 12, a propulsion fan 13, an intermediate pressure compressor 14, a high pressure compressor 15, a combustion equipment 16, a high pressure turbine 17, an intermediate pressure turbine 18, a low pressure turbine 19 and a discharge nozzle 20 in series in axial flow. . A nacelle 21 generally surrounds the engine 10 and defines both the inlet 12 and the discharge nozzle 20 .

[0050] The gas turbine engine 10 operates in a conventional manner such that air entering the inlet 12 is accelerated by the fan 13 to generate two air flows: a first air flow into the intermediate pressure compressor 14 and a second flow through the bypass duct 22 to provide propulsion thrust. Two air streams. The medium pressure compressor 14 compresses the air flow directed thereto (before delivering the air to the high pressure compressor 15 ) w...

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Abstract

There is disclosed a method and apparatus for finishing a surface of a component (30). The method comprises installing the component (30) in an apparatus configured to deliver a flow of abrasives (34) to the surface and to generate cavitation bubbles in a liquid contacting the surface using a cavitation generator (32, 32'); controlling the cavitation generator (32, 32') such that cavitation bubbles are generated to finish the surface by implosion of the cavitation bubbles; and controlling the flow of slurry to the surface so as to finish the surface by abrasion. The apparatus comprises a cavitation generator (32, 32') configured to generate cavitation bubbles in a liquid contacting the surface; an abrasive supply line (34) configured to deliver a flow of abrasives to the surface; and a controller (40) configured to control the cavitation generator (32, 32') to generate cavitation bubbles to finish the surface by implosion of the cavitation bubbles and configured to control the flow of abrasives so as to finish the surface by abrasion.

Description

technical field [0001] The present disclosure relates to a method for polishing a surface of a component and an apparatus for polishing a surface of a component. Background technique [0002] Additive layer manufacturing (ALM) has been proposed for the fabrication of components with complex geometries, including complex internal structures or channels. However, ALM can produce parts with surfaces that are rough and / or have sub-optimal hydrophobic surface properties, and require polishing to ensure good fluid flow properties. [0003] In particular, inner channels can be polished by abrasive flow machining (AFM), but this method is slow and can lead to accumulation of abrasive particles at bends and narrow passages, or contamination of components with abrasive particles. [0004] There is a need to develop surface polishing methods to alleviate at least some of the above-mentioned problems. Contents of the invention [0005] According to a first aspect of the present disc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/14B24B31/116B24C1/10B24C5/00
CPCB24B19/14B24B31/116B24C1/10B24C5/005B24C3/325
Inventor S·H·杨A·P·纳加林加姆
Owner ROLLS ROYCE PLC