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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12605793-B2, on 21 April 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000000336

Arc welding method

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Classification
Manufacturing & Assembly Equipment › Joining and Welding
Original source
US-12605793-B2, the United States Patent and Trademark Office, 21 April 2026
Document SHA-256
ea0a8b7c733139c18dcc2d63e27ed321d1d02f53333587c8e190c1ef562f695a

Abstract

An arc welding method includes welding a steel sheet while alternately switching feeding of a welding wire between forward feeding and backward feeding. The welding wire contains, in mass % with respect to a total mass to the welding wire, C: more than 0 and 0.30 or less, Si: 0.01 to 0.30, Mn: 0.5 to 2.5, S: 0.001 to 0.020, Ti: 0.05 to 0.30, and optional elements with the remainder being Fe and unavoidable impurities, and a value obtained by 2×[Ti]/[Si]−50×[S] is more than 1.0. The welding is performed by using a shielding gas containing CO 2 gas in an amount of 80 vol. % or more with respect to a total volume of the shielding gas at a frequency of 40 Hz or more and 200 Hz or less, where one cycle for determining the frequency is one forward feeding and one backward feeding.

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OpenTechnical Publication OT-2026-000000336, “Arc welding method,” published September 15, 2026 at 19:02:45 UTC, https://opentechnical.org/p/OT-2026-000000336.

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