Kern Femto E3

Manufacturing of extremely hard material

Kern Femto E3 is an ultra-short pulse laser machining center based on a reliable Kern machine platform and equipped with state-of-the-art laser control software. It is designed for precise surface processing of small and medium size parts.

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At a Glance

Highest accuracy on the part with adaptive machining and automated machine calibration
Contact-free laser manufacturing without tool wear
Increased productivity with direct machining of hard materials extremely thin layers < 0.3 µm can be ablated. Since no mechanical tool is used, there are no tooling costs or processing forces. The technology is therefore suitable for processing a wide range of technical materials, especially very hard materials or sensitive parts. This machine concept was developed in a collaboration between Kern Microtechnik GmbH and Lightmotif B.V.. It combines Kern's experience in high precision engineering with Lightmotif's expertise in laser micromachining.
Freeform surface textures and functional surfaces
Digital CAD-CAM process with low operator influence
Wide range of materials

Product Details

Specifications

Linear axes
Max. workpiece size X	170 mm
Max. workpiece size Y	210 mm
Max. workpiece size Z	160 mm
Max. clamping weight	35 kg
Pivot and rotational axes
Max. workpiece size D	85 mm
Max. workpiece size L	65 mm
Rotary axis	360°
Swifel axis	120°
Max. clamping weight	5 kg
Accuracies (VDI/DGQ 3441)
Positioning accuracy P	< 2 µm
Repeatability Ps	< 1 µm
Scanner
Scan field	50x50 mm
Spot size laser	infrared 30 µm / green 20 µm
Scanning speeds of several m/s possible
High dynamics and precision
Laser specification
Manufacturer	Amplitude Laser Group
Model	Satsuma HP²
Laser power	20 W
Puls duration	350 fs – 10 ps
Repetition rate	up to 40 MHz
Central wave length	infrared, 1030 ±5 nm
Optional by frequency doubling	green, 515 nm
Dimensions and weight
Total weight	3.200 kg
Min. space requirement B/T/H	1,5 x 1,5 x 2,2 m

Automated Spot and Power Measurement

Detecting and calibrating spot position, focus position and laser power

Integrated measurement systems in the workspace record the focus position and the power of the laser beam as well as the X and Y position across the entire scan field. Deviations of spot position and laser power are detected and calibrated directly on the part in a stable process. Thermal influences are compensated. The results are highest accuracies on the part as well as stability and repeatable long-term results.

Your advantages

Highest accuracy on the part with automatic spot and power measurement
Machine stability regarding temperature and power with measurements on the machine tabl
Best repeatability

Adaptive Machining

For highest accuracy on the part

Laser machining removes material layer-by-layer. Adaptive Machining realizes the entire automatic measurement of the actual abrasion of the material - even during machining. The measurement results are compared with the target contour and further machining is adapted accordingly. This provides automatic compensation and reduces errors. It is possible to machine the tiniest shape tolerances. The immediate availability of the measurement results provides information about the quality of the part and the long-term stability of the process.

Your advantages

Non-stop monitoring and compensation of laser machining
Highest accuracy of parts
Immediate availability of machining protocol and results

Related Offers

Process Development

We offer not "only" machines, but also the manufacturing process for your parts.

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Training Center

As an authorised training partner of Heidenhain, we offer a wide range of courses.

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Machine Support

Our service experts will support you in all matters - fast and efficient. You can rely on us.