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Real Mystery metal
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03-10-2016, 11:07 AM
We've probably all seen defects in metal but this takes the cake. It's a bar of mystery metal that I was making a temporary arbor with. As I was approaching final size, a crack appeared. It got bigger and bigger until the part dropped off. And when I looked, it was flame cut. Inside the bar!
03-10-2016, 11:32 AM
Originally two parts welded together - probably Vee'd out to increase weld penetration - and you've now turned down to smaller than the penetration of the weld.
Andrew Mawson, proud to be a member of MetalworkingFun Forum since Oct 2013.
03-10-2016, 11:41 AM
Bingo! They must've turned off the weld and stored it in the mud where I found it years later, looking like a solid but rusty bar. Not such a mystery after all then.
03-10-2016, 05:59 PM
(This post was last modified: 03-10-2016, 06:01 PM by Roadracer_Al.)
You're a lucky man! What are the odds of finding that weld?
 Actually, that reminds me a little of this: http://www.instructables.com/id/Pre-slic...ana-Prank/
03-11-2016, 11:42 AM
That's what I was thinking. Another 1/8" shorter, I'd have called it good and presented it to an expensive cutter - snap, crackle, pop as the end ripped off.
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