摘要:
The present invention relates to a welding apparatus (1), comprising a torch (2) comprising a gas nozzle (8) for discharging a welding gas (G) to protect a weld pool (32), the torch further comprising a current contact nozzle (6) through which a wire (3) is transportable towards the weld pool (32), a gas source (5) for storing the welding gas (G), the gas source (5) being connectable to the gas nozzle (8) so that the welding gas (G) can flow from the gas source (5) to the gas nozzle (8) to be discharged out of the torch (2) via the gas nozzle (8), a power supply (11) electrically connectable to the current contact nozzle (6) to generate an electrical current through the wire (3) for generating an arc (9) to cause the wire (3) to transfer material of the wire (3) towards the weld pool (32) in form of droplets (30), the arc (9) extending along a main arc axis (A), wherein the welding apparatus (1) further comprises a droplet deflecting unit (7) configured to deflect the droplets (30) in a direction (R) perpendicular to said main arc axis (A), and wherein the welding gas comprises a CO 2 content of less than 18 Vol.-%
摘要:
A method of welding surface-treated members together using a welding wire includes a step of transferring a droplet detached from the wire to the members; and a step of pushing the melt pool in the direction opposite to the direction of welding in such a manner that the gas generated from the members during welding is released from the site of generation. The melt pool is pushed to expose the overlapped region of these members. The gas generated from the members is released to the exposed portion, preventing generation of pores such as blowholes, and also generation of spatters.
摘要:
In one embodiment, a welding system having a welding power supply configured to provide welding power is provided. The welding system additionally includes a weld cable coupled to the power supply and configured to transmit the welding power, and a welding torch coupled to the weld cable and configured to apply the welding power to produce a welding arc. The welding system also includes a magnetic field sensor disposed on the weld cable proximate to the welding torch, wherein the welding power supply comprises control circuitry configured to adjust the welding power based at least in part on a signal received from the magnetic field sensor.
摘要:
The invention relates to a welding device (1) and a method for welding workpieces (2, 3), using a rotating, magnetically driven electric arc (4). The welding device (1) comprises a feed device (11) for a workpiece (2, 3), a current source (12) and a drive device (10) for the electric arc (4). The welding device (1) further comprises an additional heating device (13) for heating the connected workpieces (2, 3) in the joining region (5). The heating device (13) is designed as an additional current source (14) which can be electrically conductively connected to the workpieces (2, 3), wherein the workpieces (2, 3) are in addition conductively heated by an electric current flow.
摘要:
A method of welding surface-treated members together using a welding wire includes a step of transferring a droplet detached from the wire to the members; and a step of pushing the melt pool in the direction opposite to the direction of welding in such a manner that the gas generated from the members during welding is released from the site of generation. The melt pool is pushed to expose the overlapped region of these members. The gas generated from the members is released to the exposed portion, preventing generation of pores such as blowholes, and also generation of spatters.
摘要:
A welding system (100) is provided which can weld in narrow gap thick walled work pieces, the welding system (100) having a magnetic field unit which contains a magnetic coil (117), a magnetic field probe (107), and a shielding gas tube (105) and nozzle (106). The unit having a shape and configuration which delivers the shielding gas and magnetic field close to the welding arc so as to provide for a shielded welding arc which is manipulated as desired by the magnetic field.