This is a semi-solid aluminum 3D printing! Unfortunately, according to Ric Fulop (CEO and co-founder of Desktop metal), it can't be commercialized because the temperature control is very difficult and, when it fails, is very problematic. Nevertheless, it's an impressive demonstration.
Source: https://twitter.com/ricfulop/status/1774497991857946689
@miermont Yes that is correct, I was very impressed too.