Peening method for vehicle suspension spring
AssigneesMssc US, Saint-Gobain Centre de Recherche Et d'Etudes Europeen
InventorsJeffrey Paul Dixon, James Hall, Ryan Versluis, Joseph A. Fader, Francois-Xavier Abadie
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Abstract
A method of manufacturing a vehicle suspension component, such as a helical coil spring, includes the step of rotating a first impeller to project ceramic peening media in a first direction toward the vehicle suspension component to peen a surface section of the vehicle suspension component. In one example, the vehicle suspension component is peened with metal peening media before peening with the ceramic peening media.
Claims23
A method of manufacturing a vehicle suspension component, comprising:
- (a) rotating a first impeller to project ceramic peening media in a first direction toward the vehicle suspension component to peen a surface section of the vehicle suspension component.
A method of manufacturing a vehicle suspension component, comprising:
- (a) peening the vehicle suspension component using metal peening media and a first projection velocity;
- and
- (b) peening the vehicle suspension component using ceramic peening media and a second projection velocity after said step (a) to establish a desired level of fatigue resistance, wherein the second projection velocity is within ±20 m/s of the first projection velocity.
A vehicle suspension component comprising:
- a suspension component body having a surface section with a surface roughness less than 0.025 micrometers.
Dependencies are inferred from the claim text.