GB/Z 158-2025

This standard provides design guidelines for functionally graded additive manufacturing (FGAM), where material composition or microstructure is varied across a part to achieve tailored properties. It is applied in industries such as aerospace, biomedical, and automotive for producing components with gradients in hardness, thermal conductivity, or biocompatibility, enabling optimized performance in high-stress or multi-functional applications. The standard supports engineers in defining design rules, material transitions, and process parameters for powder bed fusion or directed energy deposition systems.