Subject: Will you increase the density of steel if you fold it in production

A friend told me that if you take a piece of steel and pour it into a mold 1 
foot by 2 foot by 3 feet. And take another piece of steel exactly like it, heat 
it up and fold it. Then hammer it back to the original 1',2',3', that the 
density of the folded piece would be more then the non-folded one. If d=v/m 
then why would the folded piece be more dense?

Re: Will you increase the density of steel if you fold it in production