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Title: Shot Peening Method and Device Therefor
Author: H. Takeda; K. Ohta; H. Rokutannda, Toyokawa
Source: US Patent 6,449,998 B1
Publication year 2002
Document number: 2002073
Number of pages: 12
Abstract:
The present invention provides a method for a shot-peening processing that can process in one step and thus reduce operating costs and the cost of equipment while increasing
the efficiency of the treatment in the peening processing while achieving a peening effect similar to the effect obtained by shot-peening processing a plural number of
times, that is, deeply generating compressive residual stress far from the top surface while generating the peak value of the compressive residual stress on the top surface.
This method is characterized by projecting, on a product to be subjected to peeening, shot in which two or threee kinds of particles, each having a different predetermined
average particle diameter and having a predetermined average particle diameter ratio to one another, are combined in a predetermined weight ratio.
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This page last revised: 04/24/2008