How to Weld Angle Iron
- 1). Set the pieces of angle iron on the corner of a nonflammable work surface. Slide one end of each angle over one end of the work surface. Clamp each piece of angle iron to the work surface with a pair of self-locking C-grips.
- 2). Attach a 4.5-inch flapper wheel to the arbor of a 4.5-inch angle grinder.
- 3). Bevel each of the overhanging ends of angle iron on a 30-degree angle. Stop grinding when the ends of the angle taper to a 1/16-inch thick point.
- 4). Release the C-grips from the angle. Align the beveled edges of the angles. Clamp the pieces of angle to the work surface.
- 5). Turn on a MIG welder. Set the voltage and wire speed of the MIG welder to the original thickness of the angle iron. The voltage and wire speed settings are located on a placard fastened to the MIG welder.
- 6). Put on a welding hood and welding gloves.
- 7). Align the tip of the MIG gun with the center of the weld joint. Lower the welding hood. Pull the trigger of the MIG gun. Move the gun in a circular motion, overlapping and filling the bevels on both pieces of angle iron. Move down 1/8 inch after each complete revolution.
- 8). Allow the welded angle iron to cool for one hour before handling.
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