The best two electrodes for welding auto body sheet metal is either ceriated tungsten or thoriated tungsten.
Best welding type for sheet metal.
There are a few main types of welding that could be used in automotive repairs.
Types of welding and what s best for automotive sheet metal.
This common type of welding was perfected in the 1960s.
It s capable of welding at very low amps for fine welding and has a broad range of settings so you can create the best welds for each type of sheet joint.
The tungsten is used for.
Metal inert gas mig welding or gmaw.
These stats are the ones more commonly found and recommended online.
Because it will have you a lot more control over the whole process and it is more forgiving in case you do anything wrong.
In the above content we introduced various joining methods of sheet metal.
Directly melt the local sheet metal material at the welding head to complete the sheet metal connection.
Some types of metal require special equipment such as a vacuum or gas chamber limits on.
Let s look at three but the last will be the most important for you to learn.
Tig welding sheet metal.
Forget the larger 1 8 inch tungsten electrode and use a smaller one.
The main purpose is to use the spot welding process to reserve a row of solder joints on the two sheet metal.
Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal.
To weld sheet metal with solid wires use electrode positive ep or reverse polarity.
Ditch a 1 8 inch tungsten electrode for something much smaller like 1 16 inch tungsten.
Almost any metal can be welded but some are easier than others for creating a high quality defect free weld.
1 16 rods work best for metal up to 3 16 3 32 rods work best for metal up to 1 8 rods work best for metal thicker than 1 8.
This machine is comparable to tig machines twice its price and we highly recommend it.
Arc welding is best used on heavy metals of size 4mm and above and is used in repairing heavy equipment steel erection and pipeline welding as well as in the manufacturing and construction industry.
There are welding charts available online however here is what i would recommend when considering the size of rod for your project.