LaserThere are a number of safety issues associated with Laser processes. The main hazards are electrical and radiation. Both CO2 and YAG lasers may be used for welding and cutting. Both types operate at high voltage and so there is a real risk of electric shock. Interlocks and shorting systems must be used with the processes to ensure no accidental contact with high voltage can take place. Lasers work by concentrating and focussing light. If this intense light beam enters the eye it can cause retinal burning or damage to the front of the eye. Complete enclosure of the laser beam is normally used to protect personnel. Viewing screens with interlocked shutters are provided for operators. Welding or cutting fume may also present a hazard but the amount produced is not normally high. Workers should be aware of the hazards of these processes and the means to avoid or control the risks should be fitted in all cases. Safety training and the adoption of safe working practices will help to minimise risk.
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