The video shows how heat, fluid, and solute intertwine during the melting and solidification of metal in a 3D printing process. As the laser melts the metal, the molten pool flows and mixes with the ...

When we watch a metal part being built by laser-based metal additive manufacturing (AM), we're only seeing part of the story. In one kind of metal AM process, a high-powered laser sweeps across a bed ...

A puff of air across a bath of molten metal sounds unremarkable, but a new study shows that the ripples it leaves behind ...