4100... Welding And Soldering Steel Parts: Welding

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During MAG welding, the weld gap must be kept as small as possible. The larger the weld gap, the lower will be the strength of the joint.
During spot-welding, the metal flanges to be joined must be placed as close together as possible without gaps.
The larger the gap, the lower will be the strength of the joint.

Minimum gap between welding spots 25 mm.