This document provides a summary of how lasers are used in various manufacturing applications. It discusses laser welding, cleaning, surface treatments, direct laser fabrication, and selective laser sintering. Laser welding is now commonly used in production and can provide benefits like high speeds, narrow welds with less distortion, and accuracy. Laser cleaning is an emerging process being used for applications like tool restoration and electronics. Surface treatments like hardening, melting, and alloying can improve properties using lasers. Direct laser fabrication and selective laser sintering allow building parts layer-by-layer from powders. Emerging applications also include laser forming of sheet metal and nanostructure generation.