Trumpf KF023, Руководство оператора

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3. Focal position
3.1 Adjusting the focal position by
means of test weldings
Adjustment of the height of the programmable focusing optics
(PFO) above the processing plane with the focal point on the
workpiece surface is described in this section.
Reference wavelength
The focusing optics is calibrated to a reference wavelength. The
reference wavelength has one of the following values, depend-
ing on the laser type:
■ 515 nm
■ 1030 nm
■ 1075 nm
The reference wavelength is indicated on a label attached to the
collimation of the focusing optics.
If the focusing optics is operated with a wavelength other than
the reference wavelength:
■ the focusing optics must be recalibrated .
Conditions
■ The optical axis of the focusing optics has to be positioned
vertically to the processing plane
(see "Aligning the focusing
optics", pg. 4 ‐ 4) .
■ The reproducible change of the clearance between the focus-
ing optics and the processing plane must be possible, for
example with an adjustable Z axis.
■ The focusing optics together with a laser device has to be
ready for operation.
■
The light path must be adjusted such that laser light is
guided to the focusing optics.
Means, Tools, Materials
■ You need a test sheet; we recommend a flat piece of black-
anodized aluminum sheet.
Note
The PFO is adjusted at the factory. Readjustment of the collima-
tor adjustment rings is not permitted.
12-29-01-A1-CRen 2022-03 Focal position
4 ‐ 15