It seems backwards, but engineers from Northwestern University have made 3D printing metal easier (and eventually cheaper) by adding extra production steps to the procedure. (Paper available in PDF).

A machine-learning strategy has generated a new class of ultra-high strength and ductility steel for 3D printing that costs less, resists rust, and requires only a fraction of the usual processing ...

Researchers from Purdue University and the University of South China have developed a new 3D-printable steel alloy that is rust-proof, 30% stronger, and twice as ductile as typical printed metals.

Researchers from the University of South China and Purdue University have successfully employed artificial intelligence (AI) to create a new high-strength, ductile 3D-printable form of steel. The new ...