Scratch Start TIG welding, also known as DIY TIG welding, is a type of Tungsten Inert Gas (TIG) welding that is suitable for small-scale welding and for welding thinner materials (up to 3mm). It is an affordable welding process for those who don’t have access to more advanced welding equipment or who aren’t looking to invest in expensive welding machines.
When to use Scratch Start TIG?
Scratch Start TIG welding can be used for a variety of applications, including:
- Welding thin materials, such as sheet metal
- DIY and hobby welding projects
- Repairing broken or damaged parts
Scratch Start TIG welding is not ideal for large-scale welding projects, or for welding thicker materials. For these types of projects, more advanced TIG welders or other welding processes would be more suitable.
How to use Scratch Start TIG?
Here are the steps to follow to use Scratch Start TIG for your welding project:
- Clean the area to be welded thoroughly with a wire brush or grinder. This will ensure proper weld quality.
- Connect the TIG torch to the welding machine and turn it on.
- Place the tungsten electrode in the TIG torch, and tighten it securely.
- Grind the tip of the tungsten electrode to a point. This will help to start the arc more easily.
- Hold the TIG torch in your dominant hand and position it about 1/8 inch away from the workpiece.
- Press the foot pedal to start the welding arc.
- Once the arc is established, carefully move the TIG torch in a circular or zigzag motion to weld the metal.
- When you’re finished welding, release the foot pedal to stop the arc.
Table: Pros and Cons of Scratch Start TIG welding
| Pros | Cons |
|---|---|
| Relatively inexpensive | Not suitable for thick materials or large-scale projects |
| Easy to use | Requires a steady hand to maintain arc |
| Produces high-quality welds | Not suitable for welding dirty or corroded materials |
Scratch Start TIG welding is a useful and affordable option for DIY and small-scale welding projects. It is easy to use and produces high-quality welds, but is not suitable for large-scale projects or welding thicker materials. If you’re interested in learning more about Scratch Start TIG welding, consider taking a welding course or consulting with a welding professional.
