1.1本规程描述了金属粉末床聚变（PBF）机器和工艺的操作和生产控制，以满足商业航空航天部件和医疗植入物等关键应用。本文包含的要求适用于使用激光和电子束的粉末床熔合（PBF）的生产部件和机械试样。1.2本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任制定适当的安全、健康和环境实践，并在使用前确定监管限制的适用性。1.3本国际标准是根据世界贸易组织技术部发布的《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贸易壁垒委员会。

1.1 This practice describes the operation and production control of metal powder bed fusion (PBF) machines and processes to meet critical applications such as commercial aerospace components and medical implants. The requirements contained herein are applicable for production components and mechanical test specimens using powder bed fusion (PBF) with both laser and electron beams. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for the Development of International Standards, Guides and Recom-mendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.