FLASH BUTT WELDING MEMBER AND FLASH BUTT WELDING METHOD FOR PROVIDING WHEEL RIM WELD PART WITH EXCELLENT FORMABILITY
Provided are a flash butt welding member and a flash butt welding method for providing a wheel rim weld part with excellent formability. The flash butt welding member of the present invention satisfies that a weld part has a hardness of 220-270 Hv, and d<0.25T, when d is the closest distance betw...
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Main Authors | , |
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Format | Patent |
Language | English French German |
Published |
15.12.2021
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Subjects | |
Online Access | Get full text |
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Summary: | Provided are a flash butt welding member and a flash butt welding method for providing a wheel rim weld part with excellent formability. The flash butt welding member of the present invention satisfies that a weld part has a hardness of 220-270 Hv, and d<0.25T, when d is the closest distance between fine-grained heat affected zones (HAZ) formed at the left and right of the weld part while facing each other and T is the thickness of a weld base metal, and satisfies L/T>2, when the total length of an upset part constituting the weld part is L. |
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Bibliography: | Application Number: EP20200861065 |