| MIG Welder | Uses a continuous wire feed as an electrode and a shielding gas. | Metal fabrication, automotive repair, and construction. | Easy to learn, fast welding speed, and good for thin materials. | Not suitable for outdoor use (wind can affect gas shielding), and less effective on thick materials. |
| TIG Welder | Uses a non-consumable tungsten electrode to produce the weld. | Precision work on stainless steel, aluminum, and other metals. | High-quality welds and versatility on various materials. | Requires skill and practice, and has a slower welding speed. |
| Stick Welder | Uses a consumable electrode coated in flux to lay the weld. | Construction, repair, and outdoor work. | Portable, effective on rusty or dirty materials, and works in all positions. | Produces more slag and requires more cleanup than other methods. |
| Flux-Cored Arc Welding (FCAW) | Similar to MIG but uses a tubular wire filled with flux. | Heavy fabrication, shipbuilding, and structural work. | Works well on thick materials and produces high deposition rates. | Less precise than TIG and can require additional cleanup. |