添加剂制造（AM），也被称为“3D打印”，经常被吹捧为一种可持续技术，尤其是对于金属部件，因为它生产的是净形状或近净形状，而不是传统的大型工厂产品加工件。虽然航空航天领域通常采用传统的铣削加工，但世界上使用的大多数金属零件都是由平轧金属制成的，利用率相当高。此外，在确定可持续性时，AM价值链的某些方面往往没有考虑在内。在当前和未来（2040年）的制造状态下，使用添加剂制造和传统技术制造的零件的可持续性比较采用了一系列方案，以比较添加剂制造和移动行业中改进的可持续性方面尚未解决的问题。

Additive manufacturing (AM), also known as "3D printing," is often touted as a sustainable technology, especially for metal components, since it produces either net or near-net shapes versus traditionally machined pieces from larger mill products. While traditional machining from mill products is often the case in aerospace, most of the metal parts used in the world are made from flat-rolled metal and are quite efficient in utilization. Additionally, some aspects of the AM value chain are often not accounted for when determining sustainability.Unsettled Issues in Additive Manufacturing and Improved Sustainability in the Mobility Industryuses a set of scenarios to compare the sustainability of parts made using additive and conventional technologies for both the present and future (2040) states of manufacturing.