3D printing has evolved significantly in industrial applications by advancing in materials, techniques, and speed. Initially used for prototyping, 3D printing now supports various applications, including producing functional parts, tooling, and custom components. Technologies like selective laser sintering and stereolithography enable complex geometries using diverse materials such as metals, plastics, and composites. This evolution increases manufacturing efficiency, reduces waste, and allows rapid iteration in product design, making 3D printing a critical component of modern manufacturing workflows.