Method for peening
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Jun 23, 2005
app pub date -
Sep 16, 2004
filing date -
Jun 10, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
To provide a peening processing method which is superior in practical use and may perform a peening process extremely effectively and uniformly. In a peening processing method in which slurry into which liquid and shots are mixed and pressurized air are mixed to form injection material, the injection material is injected from an injection port of a nozzle so that the shots in the injection material are collided against a workpiece whereby mechanical characteristics of a surface of the workpiece are changed, the nozzle and the workpiece are moved relative to each other so that the injection material is injected to a predetermined region of the surface of the workpiece, furthermore, as the nozzle, the injection port is a slit-like injection port that is wide in a direction perpendicular to a relative moving direction of the nozzle and the workpiece and the nozzle having a structure where the injection material is injected in a parallel flow from the overall region of the slit-like injection port is adopted.
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