Apparatus for providing a residual stress distribution in the surface of a part
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United States of America Patent
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N/A
Issued Date -
Nov 28, 2002
app pub date -
May 21, 2002
filing date -
Mar 1, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is a novel method and an apparatus for implementing the method of inducing a layer of compressive residual stress along the surface of a part comprising the steps of selecting a region of the part to be treated; selecting the magnitude of compression and the residual stress distribution to be induced in the surface of the selected region of the part; exerting pressure against the surface of the selected region, the pressure being applied in a selected pattern along the surface to form zones of deformation having a deep layer of compressive stress; and varying the pressure being exerted against the surface to produce the desired residual stress distribution and magnitude of compression within the surface.
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