How far are the stop/starts from the edge of the CWB 4GF test plate?

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Multiple Choice

How far are the stop/starts from the edge of the CWB 4GF test plate?

The distance from the edge is set to standardize how the weld begins and ends, giving a clean, inspectable transition and ensuring enough parent metal remains near the edge to avoid defects. For the CWB 4GF test plate, the stops are placed 38 mm (1 1/2 in) from each edge. This positioning helps prevent edge burn-through or lack of fusion at the very start or end of the weld, and provides a consistent region for evaluation. Distances like 20 mm or 50–60 mm fall outside this standard, which can introduce edge-related issues or reduce the reliability of the inspection.

The distance from the edge is set to standardize how the weld begins and ends, giving a clean, inspectable transition and ensuring enough parent metal remains near the edge to avoid defects. For the CWB 4GF test plate, the stops are placed 38 mm (1 1/2 in) from each edge. This positioning helps prevent edge burn-through or lack of fusion at the very start or end of the weld, and provides a consistent region for evaluation. Distances like 20 mm or 50–60 mm fall outside this standard, which can introduce edge-related issues or reduce the reliability of the inspection.

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