Assembly Instructions

3.2 Principles, general rules
Laser light is a versatile tool of industrial material processing.
The technology of solid-state lasers combines two advantages:
■
Solid-state lasers can reach kilowatts in the double-digit
range, also as continuous wave.
■
The light of the solid-state lasers can be guided and formed
by means of glass optics (lenses, mirrors, prisms and fiber
glass).
But the advantages have their price: The higher the laser power
used, the higher are the demands on cleanliness.
All volumes penetrated by laser light must be free of absorbing
gases or suspended particles.
Otherwise, when the laser light penetrates the volumes, the pres-
sure inside them may increase rapidly and damage or destroy
parts of the optical components.
All surfaces of optical components penetrated by laser light or
reflecting laser light must be completely free of absorbing depos-
its or particles.
Otherwise, the deposits or particles may burn in the surface of
the optical components. This normally destroys the optical com-
ponents.
Even if the components are not destroyed, a soiled focusing
optics may heat excessively. This may shift the focal position.
As a result the process quality may be reduced.
For the use of focusing optics and laser light cables (LLK) this
means:
As long as the focusing optics are not connected to LLK
plugs, plugs must be inserted into the plug receptacles to avoid
penetration of dirt.
As long as the optical plugs of the LLK are not connected to
the incoupling optics or focusing optics, protective caps must
be on the LLK plugs preventing the dirt from penetrating into the
protective glasses of the LLK plug.
The joints between the LLK plugs and the focusing optics must
be sealed by means of adhesive tape.
In highly contaminated environment, it is necessary to protect
the joints by means of protective sleeves to avoid the penetra-
tion of dirt.
The plug receptacles must be in horizontal position when
connecting or disconnecting the optical plug from the focusing
optics. This prevents the particles from entering the plug recepta-
cles from above.
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Installation
2020-01 22-50-17-CRen
Requirements
Practice