What represents a limitation of uniaxial press methods in powder metallurgy?

The limitation of uniaxial press methods in powder metallurgy primarily lies in the restrictions these methods impose on part geometry. Uniaxial pressing applies pressure in a single direction, which can lead to challenges when creating parts with complex shapes or features. The resulting parts may have non-uniform density, particularly in areas needing more intricate designs or varying thicknesses. This pressure technique may not adequately fill all the contours of a mold, resulting in geometric constraints that can compromise the part's functionality or performance.

In contrast, other methods of powder metallurgy, such as isostatic pressing or powder injection molding, can support more complex geometrical configurations. Thus, the geometry limitation is a significant aspect when evaluating the effectiveness of uniaxial press methods in producing high-quality powder metallurgy components.