Arc Welding
In Arc welding, an electric arc is used to create heat to melt and join metals. Using either Direct or Alternating currents an electric arc is created (by a power supply) between a consumable or non-consumable electrode and the base material.
Arc Welding Advantages
- High deposition rates are achieved.
- The welding speed is quite high.
- Consumption of wire is low.
- Electrical energy consumption also is low, as about 97% of heat energy can be used.
- Welding up to any length can be obtained without interruption.
- Welds of high quality with no visible fusion defects, porosity or slag inclusions can be achieved.
Applications
- Sheet metal welding.
- Thin ferrous and non-ferrous metals can be welded.
- Welding of pressure vessels and piping in industries.
- Used in the automotive as well as home furnishing industries.
- Widely used in the shipbuilding industry
Arc Welding Classification
| Electrode consumption | Welding method |
|---|---|
| Non-consumable (non-fusible) electrode type |
TIG welding Plasma welding |
| Consumable (fusible) electrode type |
Shielded metal arc welding MAG welding MIG welding Electrogas arc welding (EGW) |
| Arc welding | |