Mag Welding

Punch replacement part for plug welding.

Select size of hole for plug welding according to the following panel thicknesses:

8 mm for thicknesses less than 2.5 mm

10 mm or more for thicknesses above 2.5 mm.

Fig 1: Identifying Welding Lens Diameter

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Test weld several test pieces. Break the panels apart and measure the size of the welding lens diameter (A), see illustration.

Fig 2: Identifying Proper Spot Welds On Both Panels

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NOTE:

Use welding primer on all internal flanges.

Add filling primer if there is grinding damage.

CAUTION:

Make sure that the spot welds take properly on both panels.

Fig 3: Grinding Properly And Improperly

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Grind down the plug weld.

CAUTION:

Only grind welds, not the adjacent panel.