Vehicle & Technical > Discovery

MIG OR ARC

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peasey:
Right lads my question for to day is which one is easyer,im looking to buy a disco or defender to add to my collection that needs to have some work done, and as my budget is low i know that its going to need some welding.now i already have an arc welder and have no idea how it works.but i have read some of the welding articals on here and all of the fellas involved are using mig welders,why is this?is it because migs are easyer to use or just more readly available?or are there reasons that you cant use arc?i am willing to learn as it would be another string to my bow and fill some time as im off work due to a shattered right leg and im sooooo bored now i have done everything i want to do to my FAMILY discovery and decorated the house tidyed the garage up and done all of those little jobs she keeps finding :roll:  :roll:

Ruprick:
Hi.
Well someone may well come along and give you some more detailed info but, as far as I'm concerned, Mig is a lot easier to use. It can be regulated easier and you don't have to worry about keeping the gap between the tip and the metal.
With mig you just pull the trigger and go. With arc you have to get the gap between the electrode and the metal just right to get a good weld and keep in constant.

And arc is not so good for thin stuff as it tends to blow holes all over the place.

Hope this helps a little.
Regards, Al

Smego:
Oh god, no argument it's gotta be a mig.

Arc is ok for ship or tank building...

chris9119:
or TIG  :idea:

redhand:
Arc is best for structural welding and will weld thick metals better than mig will. So is great for Chassis, HD bumpers, Steering guards etc.  But is  too powerful for thin body panels. and as said earlier will blow holes in the piece. So Mig for bodywork and Arc for thick stuff. Although and just to muddy the water strictly speaking all types of electric welders are Arc welders and if you use CO2 instead of Argon/CO2 mix with your MIG then it becomes a MAG welder.

Check this forum out very informative and helpful. www.mig-welding.co.uk

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