Metal component treated by putting sublayers in compression, and method of obtaining such a component
AssigneeSnecma
InventorJoel Olivier Alfred Abel Vigneau
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Abstract
The invention relates to a metal component comprising at least a first zone treated by putting layers beneath the surface thereof in compression. It is characterized in that it comprises at least a first layer put in compression by shot peening and a deeper subjacent second layer put in compression by laser shock peening. The component may be a turbomachine blade. According to the method, said zone is firstly treated by prestress shot peening followed by compression treatment by laser shock peening.
Claims8
A method of treating a metal component comprising at least a first zone treated by putting layers beneath the surface thereof in compression, wherein said first zone comprises at least a first layer put in compression by shot peening and a deeper subjacent second layer put in compression by laser shock peening, said method comprising a first treatment step of treating said first zone by shot peening, followed by a second treatment step of treating said first zone by laser shock peening,
- wherein said second treatment step comprises performing a first scan of the first zone with a laser beam thereby forming a plurality of first laser impact spots on the first zone such that the first zone is subject to both shot peening and laser shock peening, and wherein said first laser impact spots do not overlap each other.
Dependencies are inferred from the claim text.