Method for measuring residual stress

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12241803
APP PUB NO 20230304876A1
SERIAL NO

18000464

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Abstract

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A method measuring a residual stress of a fillet portion, where an angle of incidence of X-rays denoted by Ψ [°], a fillet radius denoted by R [mm], a fillet angle denoted by θ [°], a vertical width of a housing of an X-ray stress measuring apparatus denoted by W [mm], a width of a detection region of a two-dimensional detector denoted by D [mm], a complementary angle of a Bragg angle denoted by η [°], and an interval between a flange portion and an imaginary straight line which passes through a fillet center and is parallel to the flange portion denoted by a [mm], formula 1 is satisfied; when Ψ≥0, an irradiation distance L [mm] of the X-rays, the irradiation distance L satisfies formula 2; and when Ψ<0, the irradiation distance L satisfies formula 3.

description='In-line Formulae' end='lead'D≤W  1description='In-line Formulae' end='tail'

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Patent Owner(s)

  • KOBE STEEL LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kabutomori, Tatsuhiko Takasago, JP 6 2
Matsuda, Mariko Takasago, JP 6 2
Takamatsu, Hiroyuki Kobe, JP 47 514

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