What is the basic definition of additive manufacturing?

Additive manufacturing is defined as the successive layering of material to create a part. This process contrasts with traditional manufacturing methods, which often involve subtractive techniques that remove material from a solid block to achieve the desired shape. In additive manufacturing, materials such as plastics, metals, or ceramics are built up layer by layer, which allows for greater design flexibility, reduced waste, and the ability to create complex geometries that would be difficult or impossible to achieve with subtractive methods.

This layering process is fundamental to various additive manufacturing technologies, including 3D printing, where each layer is precisely deposited, bonded, or cured to gradually form a complete object. This method not only streamlines production but also enables customization and rapid prototyping, making it a key innovation in modern manufacturing practices.