Method and an apparatus for prestressing components by electrical discharge

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United States of America Patent

PATENT NO 9290825
SERIAL NO

13505626

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Abstract

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An apparatus for pre-stressing a component, the apparatus includes means to direct a beam of radiation in a path through a medium adjacent to the component between a pair of electrodes to produce ionisation in the path through the medium and means to produce an electrical discharge between the pair of electrodes in the path through the medium to produce a pressure pulse in the medium adjacent to the component without the electrical discharge directly contacting the component, the pressure pulse impacting a surface of the component to produce a region of compressive residual stress within the component.

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Patent Owner(s)

Patent OwnerAddress
ROLLS-ROYCE PLCLONDON LONDON LONDON

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Webster, John R Derby, GB 67 896

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