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AWS D1.1 Welding Procedure and Welder Qualification Checklists

Checklist for using AWS D1.1 to qualify welding procedures, welders and welding operators.
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Who is responsible for determining weld size?

In many fabrication shops, welders are often left to determine weld sizes due to a lack of clear specifications from design engineers or customers. This common practice frequently leads to overwelding, where fillet welds are significantly larger than necessary, wasting material, gas, and labor. Beyond the increased cost, overwelding also introduces quality issues like distortion and slag inclusions, paradoxically causing more failures than undersized welds. While structural welding codes provide minimum weld sizes to ensure adequate heat input, these often appear "too small" to welders, leading them to apply excessive weldment.

9 Basic Steps to Read Welding Symbols

Interpreting welding symbols is a crucial skill for welders, though often overlooked in training. This basic guide breaks down the essential components of welding symbols, starting with the arrow and reference line, and explains how they convey vital information about weld type, size, length, and location. It highlights common symbols for fillet welds, including how to read length and pitch for intermittent welds, and emphasizes important notations like the "field weld" flag and "weld all around" circle.