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upset butt welding

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Definition of upset butt welding

: butt welding in which a continuous pressure is applied until the work is plastic and is then followed by a pressure high enough to produce an upset joint

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“Upset butt welding.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upset%20butt%20welding. Accessed 3 Mar. 2021.

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