1.1 本文件规定了航空航天工业中具有定向能量沉积（DED）的金属零件的增材制造要求。 1.2 在本文件的应用范围内，焊丝被用作原料，电弧工艺（气体保护金属电弧工艺（MIG/MAG/GMAW）、钨极惰性气体工艺（TIG/GTAW）、等离子弧工艺（PAW））被用作主要能源。 1.3 如果工程主管部门要求，本文件应与工程文件一起使用。 1.4 本文件不涉及健康和安全问题。 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

1.1 This document specifies requirements for the additive manufacturing of metallic parts with directed energy deposition (DED) in the aerospace industry. 1.2 Within the application scope of this document, wire is used as feedstock, and arc processes (gas-shielded metal arc processes (MIG/MAG/GMAW), tungsten inert gas processes (TIG/GTAW), plasma arc processes (PAW)) are used as the main energy source. 1.3 This document is to be used in conjunction with the engineering documents, if required by the engineering authority. 1.4 This document does not address health and safety issues. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.