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Re: De-welding

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>Can two pieces of metal be de-welded without harming either piece?  I'm
>guessing it's not like desoldering a resistor out of a circuit board w/ a
>vaccum pump.
De-welded? Haven't heard that term before...  The weld metal has the same 
melting temperature as the rest of the structure--you'd end up melting 
the whole thing by the time you got the weld zone hot enough to melted. 
It'd be up around 3000 deg F if I recollect the melting point of steel 
correctly. If you want to break the weld, use a side grinder.

Christopher Wright P.E.    |"They couldn't hit an elephant at
chrisw(--nospam--at)        | this distance"   (last words of Gen.
___________________________| John Sedgwick, Spotsylvania 1864)

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