IM Machine Name Rev.: END 10
Direct laser radiation striking your hands can be avoided through:
● never holding your hands in the direct laser beam.
● looking through the stereo microscope and positioning the workpiece so that the
welding point is in sharp focus and lies in the cross-hairs
● as far as possible, ensuring that your hands cannot be seen in the viewing area of
the stereo microscope.
● keeping your hands still whilst triggering the laser pulse using the foot switch.
● repeatedly looking through the stereo microscope and checking your hands and
the position of the workpiece.
Not only the direct laser radiation is dangerous for the skin but also radiation reflected
and scattered by the workpiece or a tool.
Scattered laser radiation striking your hands can be avoided through:
Especially objects with reflective, bright surfaces can scatter or divert the laser
radiation so that even at a great distance from the welding point there is still the risk
of a certain local burn injury.
● Where possible, not wearing jewellery on the arms or fingers when working with
laser radiation.
● Wearing thin cotton or leather gloves. Thus, you not only protect your skin against
laser radiation but also against burn injuries from hot workpieces. This is
especially necessary with materials such as silver or copper with good thermal
conductivity.
Welding Fumes
Fumes harmful to health can occur during welding work. Welding fumes are a
hazardous substance.
The exact composition and the extent of the danger are dependent on the materials
involved in the welding. For the maintenance of the purity of the respiratory air, the
employers' liability insurance association, therefore, requires that appropriate welding
fume extraction is used during welding work with the laser.
The integrated extraction system of the welding laser system is only approved for the
extraction of laser welding fumes.
It must not be used for other purposes such as, for example, the extraction of
– highly flammable or explosive gases
– liquids of any kind
– organic substances.
The exhaust openings must always be kept clear. The welding fume extraction
system must only be operated with a non-flammable filter fleece.
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