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对美国航空航天熔化焊标准(AWS D17.1)与ISO熔化焊相关标准的术语、定义及符号、缺欠质量分级、焊接试验及检验标准、焊接设计和结构维修标准的主要不同之处进行了详尽的对比分析,认为美国航空航天熔化焊标准的焊接工艺评定的规则制定及检查的基本要求包括返修焊接的基本要求相关规定较合理和明确一些,关于焊接接头的无损检测及缺欠质量验收规定较为系统、科学和苛刻一些。而ISO熔化焊焊接相关标准较为全面,特别是焊接工艺评定时十分注重焊接接头的韧性和塑性。
The main differences between the terminology, definitions and symbols related to the American Aerospace Fusion Welding Standard (AWS D17.1) and ISO Fusion Welding, the defect quality grading, the welding test and inspection standard, the welding design and the structural repair standard are exhaustive The comparison and analysis of the standard welding procedure qualification of American aerospace fusion welding, the basic requirements of the rules including the basic requirements of rework welding are more reasonable and clear, the non-destructive testing of welded joints and imperfection quality inspection system is more systematic Scientifically and harshly. ISO fusion welding and welding standards are more comprehensive, especially when the welding process is very focused on the toughness and plasticity of welded joints.