Comparison between A.C. And D.C. Welding Machines

Comparison between A.C. And D.C. Welding Machines Points : difference between, Comparison between A.C. And D.C. Welding Machines, describe the comparison between A.C. and D.C. welding machines

Comparison between A.C. And D.C. Welding Machines
	A.C. Welding Machines	D.C. Welding Machines
1.	Distribute of heat is the same thus polarity cannot be distorted. It is not so possible to weld non-ferrous metals and also as one cannot use bare rods too.	Heat up distribution is special in two poles in positive and in negative. Bare rods can be use and non-ferrous metals can be welded simply by changing the polarity.
2.	All kind of electrodes cannot be used in this method.	Any kind of electrode can be use.
3.	In A.C. the trouble of Arc blow does not happen as it is very simple to manage.	In D.C. ‘Arc blow” is strict and simply.
4.	Transformer costs fewer and its maintenance cost is too fewer.	Generator costs more and its maintenance cost is high.
5.	No rotary parts are use in transformer.	Rotary parts are necessary as the generator gets supply from AC. and delivers D.C.
6.	Arc is never sure.	Arc is more sure.