Many people have heard about welding with a graphite electrode, which can be removed from a regular AA battery. Usually they perform spot welding of thin sheet metal, up to a tin can. But with a graphite electrode you can also weld straight seams using a wire additive. Let's take a closer look at the method using regular, copper-plated and flux-cored wire.
1. Welding with binding wire
To perform welding, it is necessary to clean the parts at the joint and set the current on the inverter to 30A.
The graphite electrode should be ground at the end so that it can be used more accurately. Ideally, make a separate holder for it, since the standard one from the inverter is not very convenient.
When using an additive, you need to weld by moving the electrode at an angle forward, immersing the binding wire in the weld pool.
Even when using such an additive, the parts fit together perfectly, but the seam is rough.
2. Welding with copper-plated wire for semi-automatic
Similarly, you can weld with specialized 1 mm copper-plated wire for a semi-automatic machine. With it, the quality of the seam will be higher.
3. Welding with flux-cored wire for semi-automatic
It is best to use 8 mm self-shielding wire as a filler additive. With it, the quality of the seam is almost perfect.
All three samples:
