Swatch Lasag SLS 200 CL Series, Инструкция по эксплуатации

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I N D U S T R I A L - L A S E R S
A COMPANY OF THE
Service instructions
Laser sources
5 Technical data of the beam guidance
with fiber optic cables
© Lasag AG, Thun, 26.02.08 CM
86 . 0621 - 05 - 05
INFORMATION FOR AVOIDING DAMAGE TO THE INSTALLATION
1. Use that type of fiber, for which the laser source is designed. For any admissible ap-
plication it is also possible to utilize a fiber optic cable with a larger diameter.
2. Only work within the parameter range, given in the «Working Range Diagrams».
Working outside of these diagrams may damage the fiber.
3. Together with the working heads LLBK the fiber optic cable LL-97 can be used for
welding in all directions when observing the conditions outlined in the appropriate
application work sheet. For vertical processing on highly reflective materials, the fo-
cal point of the processing has to be on the workpiece surface. Any de-focusing in
order to achieve larger spot diameters can damage the fiber-optic cable. In this
case, a larger diameter fiber-optic cable has to be utilized. An inclination of the pro
cessing head by 15° relative to the vertical of the processing surface prolongs the
service lifetime of the fiber-optic cable. The peak power shall be so high, that the
melting point of the processed material (highly reflecting) is reached.
5.3 Technical data of the fiber optic processing head
For the various fields of application several type ranges exist. The following remarks apply to them all:
1. The fiber optic processing heads can be used with the fiber optic cables LL-90 / LL-97 and the fiber
diameters 50 µm, 100 µm, 200 µm, 400 µm and 600 µm.
2. The max. average power of the fiber optic processing heads depends on the type of processing
and on the laser power reflected back into the processing head during the processing.
3. The indicated max. average power refers to cutting with a cutting nozzle and oxygen. During wel-
ding
it is reduced by a factor of 2 to 3, depending on the material and the plasma torch. An effective suc-
tion extraction of the plasma torch is exceedingly important.
Depending on the average power and the application, the fiber optic processing head has to be
cooled through the holder. This can be necessary especially during welding.