- 1). Drill holes every 1/4 to 1/2 inch along the width of the top metal plate that you are welding with a drill fitted with a 7.5 mm drill bit.
- 2). Place the top piece of sheet metal over top the base piece of metal and clamp it in place so it does not move while you are working.
- 3). Place the wire electrode from the MIG welding torch in the center of the first hole so it touches the lower metal plate.
- 4). Pull the torch trigger to start an arc weld for 4 to 6 seconds until the hole in the top sheet fills with liquid metal. This will fill the hole with a plug and join the two sheets together at that location.
- 5). Repeat step 4 until all the holes are welded.
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