[TheForge] scrap plate steel

[The Millers]

Actually it is kind of counter intuitive. You heat the convex side then 
"chill" it with water causing rapid contraction.
The rapid contraction performs the "shrinking" effect like a shrinking 
hammer.

You can't do it all at once.

But I watched a guy straighten a 24" buck stay, (I beam used in large 
power plant boilers) that had a 12 " bend!!

Ray


The other model to consider is heating couplings to install on shafts 
or shrink fits.

If you heat from the outside in the hole will get smaller. If you heat 
from the inside out it will get bigger.

Ray
Cincinnati


On Friday, October 15, 2004, at 05:02 PM, Gladish Family wrote:

>> In basic terms it was a matter of heating the opposite side and
>> then cooling with water and shrinking the "dimple".
>>
>> Ray
>> Cincinnati
> That sounds kind of fun...so, the heat goes in the concave side, right?
> Then (I'm guessing here) heat until it expands and becomes straight, 
> and
> stop it in time...
> Andy G.
>
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