Additive manufacturing (AM) is a high-priority technology growth area for U.S. manufacturers. Innovative additive manufacturing processes that fabricate parts layer-by-layer directly from the 3-D digital model have great potential for making high-value, complex, individually customized parts. However, key issues must be addressed to achieve widespread use of additive processes for direct part
production and realize the potential economic benefits. Among the issues to be addressed are gaps in measurement methods, performance metrics, and standards needed to evaluate fundamental AM process characteristics, improve the performance of AM equipment, improve the accuracy of AM parts, and increase the confidence in the mechanical properties of parts fabricated using these systems.