Fillet weld joint and method for gas shielded arc welding

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United States of America Patent

PATENT NO 9457416
SERIAL NO

13167260

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Abstract

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A fillet weld joint of steel formed by arc welding, wherein a martensitic transformation starting temperature (Ms point) of a weld metal is 400° C. or above and 550° C. or below, a value obtained by dividing a toe radius ρ of a toe part of welding by a sheet thickness t of a base metal (ρ/t) is 0.25 or above, an expression Ms(° C.)≦375×[ρ/t]+320 is satisfied, and a crack defect does not exist in the fillet weld joint.

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Patent Owner(s)

  • KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.);KOBE STEEL, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kasai, Ryu Fujisawa, JP 2 6
Kinefuchi, Masao Kobe, JP 14 148
Suzuki, Reiichi Fujisawa, JP 61 177

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