That all depends on what type of arc welding you are doing, Mig, Tig or MMA (stick)
It also depends on what standard you are working at, what you are welding, where you are welding and the level of danger you are in i.e. are you in a warzone, underwater, high up etc etc.
A typical basic mig welder the does tables and chairs etc can look to be earning about 12,500 to 15,000 pounds a year.
A fully coded welder working on high pressure steam lines etc can earn upwards of 52,000 pounds a year.
Then you can factor in danger money, are you working away from home, overtime etc and get even greater amounts.
I had my Asmi 9 which is one step below coding and was earning about 26,000 a year welding sonic cleaners, furnaces and wire winding machinery.
It all comes down to your skill.
I am not sure that it is more common. The large welding rigs that are mounted on trucks mostly use DC, but they can be set for AC. If the question is based on a survey of the cheap welders at a retail outlet, the answer would be that AC welders are simpler to make, since only a transformer is required to change the voltage. A DC welder needs to convert the power from AC to DC, which is more complicated and therefore more expensive. Cheap welders may be easier to sell to a beginner, therefore more of the welders would be AC.
Arc welders are used for welding that needs to be precise. Bicycle frames are a good example. Automobile frames that need to be repaired are usually arc welded.
That that would depend on what welder you are using. But most welders do have a arc that is brighter than the sun
Both are shielded metal welders but differ in the electricity they use. Ac welders can weld heavier metal while dc welders are better for thinner metals. Ac welders can weld magnetized metals. Dc welders can not. The arc in an ac welder is harder to control because of the pulsating current. Dc welders are more expensive. Some welding machines offer both options.
I am currently running a subarc in Alberta, Canada. I make $23 an hour, but I assume the wage would vary.
DC WELDING:We gain a smoother welding because of constant and linear direction of current.The arc will be more stable and easier to handle.DC welder can use both AC and DC welding rods.AC WELDING:The arc is not stable here and needs to be stuck again because of the fluctuating nature of AC.It is not as smooch as DC welding.These welders cost less when compared to DC welders.
Arc mig and tig
MIG and Electric Arc
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The pop-up toaster, short wave radios, and arc welders were invented in the US in 1919.
Those involved in arc welding and soldering activities
How did Joan of Arc do what? You need to make your question a bit more specific.