![]() ![]() This system became widely used throughout the world, mainly because of the oil industry, and today is used by approximately half the world’s welding industry. All AWS standards comply with the requirements of the American National Standards Institute (ANSI) and are designated ANSI/AWS. The American system of symbolization is the AWS system, formulated by the American Welding Society (AWS). ![]() ![]() This practice was obviously unsatisfactory, especially when drawings were passed from one company to another and, to solve this problem, the numerous symbols in existence were rationalized to some extent by countries compiling their own standard specifications for welding symbols. Symbols for indicating welded joints on engineering drawings were originally devised by individual drawing offices to provide more useful information than a simple arrow with the instruction ‘weld here’. ![]()
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