Patent ID: 8124913

Claim:
A method for controlling or adjusting a welding process using a melting electrode comprising the steps of: (a) igniting an electric arc; (b) subsequently carrying out a welding process adjusted according to several different welding parameters and controlled by a control device using a welding current source; wherein the welding process comprises at least a first welding process phase and a second welding process phase; wherein the first welding process phase has a high energy input and a first material transition and the second welding process phase comprises a cold-metal-transfer phase having a low energy input and a second material transition different from the first material transition; (c) cyclically combining the first and second welding process phases during the welding process to influence or control the heat input into a workpiece to be worked; wherein the first welding process phase has a high energy input phase and a base current phase and the second welding process phase has a short-circuit phase that starts during the base current phase; (d) during the cold-metal-transfer phase, conveying welding wire via a wire conveyance in the direction of the workpiece until contacting a workpiece, and subsequently reversing the wire conveyance after a short circuit has been created to move the welding wire back to a predefined distance from the workpiece; and (e) changing from the second welding process phase having the low energy input to the first welding process phase having the high energy input or changing from the first welding process phase having the high energy input to the second welding process phase having the low energy input during or after the short circuit or during the base current phase, during which the welding current is lowered to a base value.