There's also cold spray additive manufacturing, a 3d printing technique that involves spraying high velocity metal powder to build layers: https://en.wikipedia.

There's also cold spray additive manufacturing, a 3d printing technique that involves spraying high velocity metal powder to build layers: https://en.wikipedia.org/wiki/Cold_spray_additive_manufacturing https://en.wikipedia.org/wiki/Cold_spray_additive_manufactur...