本文件对铝、镁及其合金和纯铜的电子束和激光束焊接接头的缺陷程度提供了指导。以允许广泛应用焊接制造的方式给出了三个级别。水平指的是生产质量，而不是制造产品的适用性。 本文件适用于电子束和激光束焊接: -铝及其合金； -镁及其合金； -纯铜（例如Cu-ETP1 CW003A、Cu ETP CW004A、Cu FRHC CW005A、Cu- FRTP CW006A、Cu-OF1 CW007A、Cu OF CW008A、Cu OFE CW009A、Cu PHC CW020A、Cu HCP CW021A、Cu PHCE CW022A、Cu DLP CW023A、Cu DHP CW024A）； -使用或不使用附加填充丝焊接的所有类型焊缝； -厚度等于或大于0.5mm的材料，用于电子束和激光束焊接。 当焊接产品中存在与本文件所述接头几何形状和尺寸的重大偏差时，有必要评估本文件规定的适用范围。 注:对于圆形焊缝，可以为衰减指定较低的质量水平- 区域外。 冶金方面，例如晶粒度、硬度、氢脆（纯铜）不包括在本文件中。 本文件直接适用于焊缝的目视检查，不包括推荐的检测方法或其他无损检测方法的详细信息。使用这些限制来建立适用于无损检测方法（如超声波、射线照相和渗透检测）的适当标准存在困难，需要通过检查、检验和测试的要求来补充这些限制。

This document gives guidance on levels of imperfections in electron and laser beam welded joints in aluminium, magnesium and their alloys and pure copper. Three levels are given in such a way as to permit application for a wide range of welded fabrications. The levels refer to production quality and not to the fitness-for-purpose of the product manufactured. This document applies to electron and laser beam welding of: — aluminium and its alloys; — magnesium and its alloys; — pure copper (e.g. Cu-ETP1 CW003A, Cu-ETP CW004A, Cu-FRHC CW005A, Cu-FRTP CW006A, Cu-OF1 CW007A, Cu-OF CW008A, Cu-OFE CW009A, Cu-PHC CW020A, Cu-HCP CW021A, Cu-PHCE CW022A, Cu-DLP CW023A, Cu-DHP CW024A); — all types of welds welded with or without additional filler wire; — materials equal to or above 0,5 mm thickness for electron and laser beam welding. When significant deviations from the joint geometries and dimensions stated in this document are present in the welded product, it is necessary to evaluate to what extent the provisions of this document can apply. NOTE For circular welds, a lower quality level can be specified for the fade-out zone. Metallurgical aspects, e.g. grain size, hardness, hydrogen embrittlement (pure copper) are not covered by this document. This document is directly applicable to visual examination of welds and does not include details of recommended methods of detection or sizing by other non-destructive means. There are difficulties in using these limits to establish appropriate criteria applicable to non-destructive testing methods, such as ultrasonic, radiographic and penetrant testing, and they can need to be supplemented by requirements for inspection, examination and testing.