Why should forging increase the density ? Does it change the mass (no) volume ? (not significant)
For all practical purposes it may not increase (in fact in some cases it may even decrease the density- in steel)
Exact increas, decrease (both negligible) will depend on the microstructure before and after.
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Fantastic ideas for a Fantastic World, I make the illogical logical.They put me in cars,they put me in yer tv.They put me in stereos and those little radios you stick in your ears.They even put me in watches, they have teeny gremlins for your watches