Gas assistance device for laser welding and laser welding system
AssigneeTrumpf (China) Co., Ltd.
InventorsYuan Liu, Zekai Hou, Franz Lehleuter
Life of this patent
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Abstract
A gas assistance device for laser welding includes an assistance gas unit configured to apply an assistance gas to a site to be welded, and a fume suction unit configured to suck fumes generated during laser welding. The assistance gas unit is provided with an assistance gas nozzle. The fume suction unit is provided with a fume suction port. The assistance gas nozzle includes a first slit-shaped opening. The fume suction port includes a second slit-shaped opening. The fume suction unit is at least partially attached to the assistance gas unit. In an operating state of the gas assistance device, the second slit-shaped opening is at least partially located above the first slit-shaped opening.
Claims20
A gas assistance device for laser welding, the gas assistance device comprising:
- an assistance gas unit configured to apply an assistance gas to a site to be welded, wherein the assistance gas unit is provided with an assistance gas nozzle;
- and
- a fume suction unit configured to suck fumes generated during laser welding, wherein the fume suction unit is provided with a fume suction port,
- wherein the assistance gas nozzle comprises a first slit-shaped opening, the fume suction port comprises a second slit-shaped opening, the fume suction unit is at least partially attached to the assistance gas unit, and in an operating state of the gas assistance device, the second slit-shaped opening is at least partially located above the first slit-shaped opening, and
- wherein the assistance gas unit is at least partially configured as an outer ring structure, the fume suction unit is at least partially configured as an inner ring structure, and the inner ring structure is embedded within the outer ring structure.
Dependencies are inferred from the claim text.