Warning:
◎ To ensure safety, equipment operators are advised to use only the jet nozzle tip.
For the part number of Maxphotonics nozzle tip kit, refer to the table in
Figure 6-1. Replacement nozzle tips can be purchased as needed.
◎ For the proper angle and position of the welding gun, consult Figure 6-1.
5. Hazard of Welding Smoke
Warning:
◎ Beware of the dangers of inhaling welding smoke!
Welding "smoke" encompasses a mixture of fine particles and gases that are
created during the welding process. This smoke originates from the materials being
welded, filler materials, shielding gases, coatings, paints, chemical reactions, and air
pollutants. Exposure to welding fumes can negatively impact the lungs, heart,
kidneys, and central nervous system. The laser interaction with target materials like
plastics, metals, and composites may cause them to evaporate, producing toxic and
hazardous smoke and fog which are often invisible but pose serious health risks.
Performing welding tasks in enclosed spaces with poor ventilation is extremely
dangerous, as toxic smoke and gas concentrations can quickly build up, leading to
coma or asphyxiation. The ultraviolet light emitted during welding reacts with oxygen
and nitrogen in the air, producing ozone and nitrogen oxides, which can be lethal at
high concentrations. Shielding gases used in welding can displace air and cause
harm or even death.
• To prevent exposure to hazardous fumes during welding, keep your head away
from the fume source and always work in a well-ventilated area.
• Implement smoke extraction systems to capture and remove dangerous fumes,
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