"It's the metal quality that I'm more interested in. "
Discussed a couple of paragraphs before the end.
"The metal fuses creating a density of between 96 and 99.8 per cent, according to Desktop Metal. "
So near full metal density.
If the standard spec metal was borderline you would probably have to switch metals. In terms of powder metallurgy I think the nearest is where the metal is compressed in a mold and has an electric current put through it.
Biting the hand that feeds IT
