On Saturday, October 19, 2013 7:44:23 PM UTC-4, Ignoramus23452 wrote:
I have a 3/4" thick steel plate that is 3/4" thick. It is bowed in the

middle along its length. The worst un-straightness is in the middle

and it is appx. 1/4". I would like to straighten it. How can I

realistically do it, if at all.



i

There is more than one way to do it. You can force it to be flat and then heat it to take out the stresses. You can force it past being flat so when released it returns to a straight position. Or you can heat the bulge and keep the rest of the plate cool, so the bulged metal yields but the rest of the plate does not yield. Then when it cools the plate will be flat.

Dan