Arc welding apparatus and method using a stack of fuel cells

A an electric arc welding machine with multiple liquid organic fuel batteries of the. The fuel tank for methanol/water mixture and organic material supplying. The fuel tank for producing carbon dioxide to take reaction product; the reaction product in arc welding process and control atmosphere is. The fuel battery is folded along the same seat, in order to ensure the claim arc voltage and current between the electrode and workpiece. The electric arc welder to control comprising a welding current through assisting current waveform, so the control or the reinforcing connected with the voltage of electrode.