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I Forge Iron

Scarf weld strength


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I've been practicing scarf welding semi-regularly and I've still got plenty of room for improvement. On 1/2" square, it took my body weight bending parallel to the plane of the weld (the way welded tongs are usually oriented) until the weld failed after bending a bit.

Ideally a scarf weld should act like a homogeneous bar, but at what point would you call it good enough? Would you gauge by it holding, or looking like one piece? I have a lot of trouble blending the toe of the scarf, so any advice on that is appreciated.

I recently tried "flicking" the molten scale and flux off the bars on the way to the anvil and it seemed to help, although I haven't seen many people do it. Does anybody else find it beneficial?

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