How to Properly Weld Auto Body Sheet Metal?
Auto body sheet metals welding needs utmost care and attention. It is obligatory to keep few things in mind when involving on auto body sheet metal welding or any thin metal welding to avoid unfavourable situations. Both MIG as well as TIG welder can be sourced to carry out this task and achieve great results.
Using MIG welder:
If you are using MIG welder, follow the below listed procedures.
- Stick to small wire diameter to avoid making unwanted holes in sheet metal and it also adds flexibility if things mess up. Stay away from thinner base metal.
- When commencing the welding process, opt for the shielding gas and it must possess higher proportion of argon gas. Using higher percentage of CO2 is also a wise choice.
- Avoiding flux-cored wired is a wise choice as it makes base metal prone to heat.
Using TIG welder:
- Ceriated tungsten or thoriated tungsten is ideal choice of electrode for auto body sheet metal.
- Employ silicon bronze as filler material since it is thinner than base metal, it is easy to work with as well as avoids overheating issues.
- Picking a pointed electrode is a better idea for TIG welder as it brings in more control.
It is better to take it slow if you are an apprentice. It avoids making mistakes such as warping, making a hole etc. Commence with lowest power setting and gradually move towards higher point. Measuring the sheet metals paves a way for accuracy. Cleaning up the metal is prominent before you start working on welding process. Cleaning helps to avoid formation of oxide layers, else all your efforts and time goes in vain.
I hope this article gives necessary information you are seeking for.
