本规范规定了批量处理源自现有增材制造工艺工作流程的用过的金属粉末的工艺要求，以便在非闭环增材制造机器中航空航天零件的后续增材制造中重复使用。这样的粉末可以是预合金化的或商业纯的。本说明书不限于作为待重复使用的材料的原始来源的特定增材制造工艺工作流。它旨在定义实现金属粉末原料所需的清洁度和性能所必需的那些程序和要求，所述金属粉末原料被重新引入到所述粉末来源的相同增材制造过程中。本规范旨在与用于增材制造的相关AMS粉末规范和AMS工艺规范结合使用。除非另有说明，按照本规范制备用于重复使用的粉末旨在符合由原始原始粉末规范定义的物理和化学属性，用于生产航空航天部件，提供由相应AMS材料规范指定的等效特性和性质。

This specification prescribes process requirements for batch processing of used, metal powder originating from an existing additive manufacturing process workflow for reuse in subsequent additive manufacturing of aerospace parts in non-closed loop additive manufacturing machines. Such powders may be pre-alloyed or commercially pure. This specification is not limited to a specific additive manufacturing process workflow as the originating source of material to be reused. It is intended to define those procedures and requirements necessary to achieve required cleanliness and performance of metal powder feedstock to be reintroduced into the same additive manufacturing process from which such powder originated. This specification is intended to be used in conjunction with relevant AMS powder specifications and AMS process specifications for additive manufacturing. Unless otherwise specified, powder prepared for reuse following this specification is intended to be conforming in physical and chemical attributes as defined by the originating virgin powder specification for the purposes of producing aerospace parts, providing equivalent characteristics and properties as specified by the corresponding AMS material specification.