Additive manufacturing (AM) already has many industrial uses, with more being discovered every year. Similar in principle to 3D printing, but distinct in execution, AM is the process of joining materials to make objects from 3D models, usually layer by layer, followed by a finishing process that prepares the new part for installation or use. While 3D printing excels at producing models and imitations, AM combines printing technologies, computer-assisted design (CAD), and post-production processing to create usable components.