Abstract: A method for controlling a welder including a fusible electrode stores the values of the welding parameters required for a welding process in a storage device and saves the values as so-called characteristic curves through at least one support point per characteristic curve. A working point is set by a value for the heat input into a workpiece and a value for the wire feed speed. Upon adjustment of any of the values to a welding application the other value is kept constant by a calculation method designed such that a plurality of characteristic curves that are compatible with one another are combined to form a characteristic curve field per welding process and the welding parameters of all support points of the characteristic curves of the characteristic curve field are saved according to defined values of specific welding parameters.

Abstract: The invention relates to a method for changing a welding process during a welding operation, wherein the change is carried out from a welding process that was conducted to a subsequent welding process during a short circuit between a melting welding wire and a workpiece, and to a method for applying heat prior to a welding operation. In order to achieve a welding process with high process stability, it is provided that, upon detecting the short circuit of the welding process that is conducted, the welding wire (9) is still moved for a defined duration (32) in the movement direction and subsequently stopped, depending on a threshold value (34) of the welding current (I) of the subsequent welding process, whereupon upon reaching the threshold value (34) of the welding current (I), the welding wire (9) is moved in the opposite direction in order to start the subsequent welding process.

Abstract: The invention relates to a method for changing a welding process during a welding operation, wherein the change is carried out from a welding process that was conducted to a subsequent welding process during a short circuit between a melting welding wire and a workpiece, and to a method for applying heat prior to a welding operation. In order to achieve a welding process with high process stability, it is provided that, upon detecting the short circuit of the welding process that is conducted, the welding wire (9) is still moved for a defined duration (32) in the movement direction and subsequently stopped, depending on a threshold value (34) of the welding current (I) of the subsequent welding process, whereupon upon reaching the threshold value (34) of the welding current (I), the welding wire (9) is moved in the opposite direction in order to start the subsequent welding process.

Abstract: The invention relates to a method of manufacturing a structure (1) at a surface of a work piece (4), the structure (1) standing out from the surface, wherein a welding process (7) with an at least partially fusing filler material (2) is used, wherein an arc (3) is ignited during a welding cycle (8) of the welding process (7) between the filler material (2) guided in a welding torch (5) and the work piece (4), and wherein the heat input during the welding process (7) is adjusted by controlling the welding parameters. In accordance with the invention it is provided that the structure (1) is manufactured step by step from a plurality of individual elements (6), wherein each individual element (6) is manufactured in one welding cycle (8) of the welding process (7), and wherein a welding break (9) is made after each welding cycle (8).

Abstract: The invention relates to a method for controlling a welder comprising a fusible electrode, wherein the values of the welding parameters required for a welding process are stored in a storage device and are saved as so-called characteristic curves (1) through at least one support point (2) per characteristic curve (1). In order to create such a method, it is proposed that a working point (3) be set by a value for the heat input (Pw) into a workpiece and a value for the wire feed speed (vd), wherein upon adjustment of any of said values to a welding application the other value is kept constant by a calculation method, and the calculation method is designed such that a plurality of characteristic curves (1) that are compatible with one another are combined to form a characteristic curve field (4) per welding process and the welding parameters of all support points (2) of the characteristic curves (1) of the characteristic curve field (4) are saved according to defined values of specific welding parameters.