What unique AM feature can help reduce a part's weight while improving its strength and fatigue resistance?

Lattice structures are a unique feature in additive manufacturing that can significantly reduce a part's weight while simultaneously improving its strength and fatigue resistance. These structures consist of a network of interconnected struts or beams that form a framework, allowing for an efficient distribution of material.

By utilizing a lattice structure, parts can maintain a high strength-to-weight ratio, which is ideal for various applications that require lightweight components without sacrificing performance. The geometric configuration of a lattice can absorb and distribute loads effectively, enhancing fatigue resistance compared to solid or continuous structures. This makes lattice designs particularly advantageous in industries like aerospace and automotive, where weight savings are critical for performance and fuel efficiency.

Other options, while they have their benefits, typically do not combine weight reduction with improved strength and fatigue resistance as effectively as lattice structures do. Solid structures and hollow designs may lead to weight reduction but often at the cost of structural efficiency. Mesh frameworks, although offering some benefits in specific applications, do not provide the same systematic strength and material distribution advantages that lattice structures offer.