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When all else fails, destruct test - Doug Ayen's Blacksmithing Blog [entries|archive|friends|userinfo]
Doug Ayen

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When all else fails, destruct test [Jun. 19th, 2013|11:01 pm]
Doug Ayen
When all else fails, destruct test.

I took the smallest, thinnest wheel, one I'd not bother to much with anyway, put it in a vice, and bent it. It bent, no cracks. Thinking it might have been tempered too soft somehow, I tried to re-harden with the heat treat furnace, slapping on a thick layer of furnace cement, heating, quenching -- and again it bent without cracks. I pounded it out on the anvil, clayed it up again, fired up the forge, and heated until it was at the temperature I'm used to seeing. I heard it crack in the water, forgoing the uber-expensive quenching oil, and when I pulled it, I saw it had warped under the stresses. Back to the vice, on a bend it cracked about a quarter inch in from the edge, but the middle was still soft. I ground off the refractory, gave it a quick polish in a few spots, and etched in hot vinegar.

destructetch
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Comments:
[User Picture]From: perspicuity
2013-06-20 04:27 am (UTC)
tell people it's a failed platter from a UFO?

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[User Picture]From: cz_unit
2013-06-20 02:20 pm (UTC)
Nice job, it's good to see what can damage these things; you should bring this and a good one to Noel's party for review.

C
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