To provide a residual stress part reduction method and a residual stress part reduction device capable of carrying out more precise work on a part of a metal part and carrying out extremely favorable treatment even for treatment where compressed residual stress and tensile residual stress are included.
A residual stress detection process to detect the tensile residual stress of the metal part 1, a residual stress specifying process to specify a stress value, a place and a region of the metal part, a compressed stress giving energy setting process to set a value, a place and a range of compressed stress giving energy to convert the tensile residual stress of a tensile residual stress part to the compressed residual stress in accordance with a data concerning the tensile residual stress and a compressed residual stress giving process to give the compressed residual stress due to cavitation work to the metal part are furnished, and a hone 4 to vibrate in high frequency is relatively traversely moved by interposing liquid in a clearance between the hone and a surface of the tensile residual stress part of the metal part 1 in the compressed residual stress giving process.
COPYRIGHT: (C)2006,JPO&NCIPI
Goichi Hirota
Kageyama Masakazu
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Shunguchi Sekiguchi