How to Weld With a E71T Flux Core

Clean the surface of the metal that you are going to weld with a metal grinder.

Prepare your arc welder, inspect all of the cable connections on the welder. Attach the grounding clamp to your work piece. Place knurled drive rolls into your machine. The knurled drive rolls won't deform the flux cored wire as it feeds it through the machine. Change the electrode polarity setting to DC electrode negative or straight polarity.

Select the proper voltage and amperage for the weld. The voltage and amperage needed will be different for every weld job. This varies based on metal thickness, the configuration of the weld joint, the welding position and the flux core wire diameter. There should be a sticker on the arc welding machine near the power source with a voltage and amperage chart.

Feed out the flux-cored welding wire 3/4-inch out from the contact tube of the welder. This is twice the normal length used for normal MIG welding applications. The flux-cored welding wire acts as the electrode during arc welding.

Put on your welding face shield, protective welding jacket and heat resistant gloves. Turn on the arc welder, and make a spark to create the electric arc necessary for the weld by touching the metal with the electrode wire.

Hold the gun perpendicular to the weld joint at a 5 to 15 degree angle. Move the weld gun tip in a back and forth motion across the joint as you weld it together. When the metal begins to melt and form a weld pool, hold the arc welding gun with the tip pointed back toward the weld pool. Drag it away from the pool and toward you to make the weld; this is called a drag or pull welding technique.

Grind off the slag from the surface of the finished welded joint to remove it.