Just wondering which welder is better for welding car panels, the mig or tig? Both being 170amp
Tig vs mig welding
Started by
_adz372_
, Feb 26 2016 06:26 PM
5 replies to this topic
#2
kiwi-lilj
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Posted 26 February 2016 - 06:29 PM
If you don't have any experience with a tig then don't use it on a car. It is a much slower process, therefore much more heat is applied for a longer time, the potential for distortion is far greater.
#3
_Bomber Watson_
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Posted 26 February 2016 - 06:56 PM
Tig is cool on a nice clean workbench where everything is perfectly prepped and your sitting comfortably.
Mig is good for everything else 
#4
Rockoz
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Posted 26 February 2016 - 08:14 PM
In a perfect world TIG is the better option.
But.
MIG is great for tacking replacement sections in place.
TIG is better for finishing welding in.
MIG welds are harder and wont respond well to hammer and dolly work.
TIG welds are okay for hammer and dolly work.
TIG is the alternative to oxy fusion welding. It uses a lot less heat than oxy.
All welding requires lots of practice to get it right if you havent had the training.
Some people "take" to TIG welding very quickly.
Others have a lot of difficulty getting the technique right.
If you have limited experience i would suggest MIG first.
Many people on the forum here have started with no experience and ended up doing brilliant work.
#6
_ChaosWeaver_
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Posted 02 March 2016 - 07:27 AM
TIG's are great for welding stuff that you don't want to leak, water, fuel, oil tanks ect.. Or lightweight stuff that needs to be strong, Roll Bars ect... The weld is a lot purer and cleaner than MIG, which compared to TIG can be quite poris at the start and end of the weld in particular. The MIG wire can leave a tiny hole, particularly at the end of the weld..
I used to weld Aluminium Builders planks together, to make Oyster Barges at West Gosford.. We used a MIG to weld the planks together because of the speed of the MIG welding process. And used to TIG the start and stops of the Mig's welds, along with fixing any holes. These planks are then pumped full of air, and brushed down with detergent to check for leaks. and again TIG anything that leaks...
TIG's for Quality ..... MIG's for Speed, and Economy . So depending on your needs and your money, It's damn nice to have both...
But for Car Panels, Kiwi-lilj comment #2 has your answer ... 
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