The invention relates to a method for controlling and / or adjusting a welding process, using a melting electrode, wherein after ignition of an electric arc, a welding process, which is adjusted on the basis of several different welding parameters, is carried out by means a welding current source (2), said process being controlled or adjusted by a control device (4). The invention also relates to a corresponding welding device used to carry out the process. In order to create said method, wherein the thermal heat economy is adjusted and / or regulated and / or controlled in order to introduce heat into the workpiece (16), at least two different process phases are cyclically combined, said process phases having different inputs of energy via different material transitions and / or arc types, such as a pulse current phase (27) and a cold metal transfer phase (28) in order to influence or control thermal heat economy, particularly the introduction of heat into the workpiece to be processed.