Fraunhofer Institute for Material and Beam Technology IWS
Fraunhofer Institute for Material and Beam Technology IWS

Equipment

Ultra-short Pulse Laser

Ultra-short pulse laser micromachining system.
© Fraunhofer IWS/Jürgen Jeibmann
Ultra-short pulse laser micromachining system.
  • UKP laser systems with three wavelengths each
  • Technical data:
    • Variable pulse duration from 500 fs to approx. 20 ps
    • Wavelengths between 343 nm and 1064 nm
    • Nominal power up to 300 W
    • Pulse frequencies: single pulse up to 10 MHz
    • Burst mode for generating pulse trains
  • Integrated in high-precision 5-axis processing station with highly dynamic beam deflection by means of scanner (processing of flat, cylindrical and three-dimensional components)
  • An integrable vacuum chamber enables component processing under vacuum or defined process gas atmosphere.

AI Testbench: Revolutionizing Laser Manufacturing and Data Acquisition with AI

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© Fraunhofer IWS

  • Predictive modelling for laser precision manufacturing: Combination of micro material processing with artificial intelligence and machine learning.
  • Technical data:
    • One measurement and two machining platforms, connected by a precision axis system.
    • Processing stages: polygon scanner, flexible beam former, 3D scan system and DLIP module for laser interference texturing
    • Beam sources: high-power ultrashort pulse laser (P higher than 300 W, tp = 1.6 ps, Ep = 3 mJ) and a short-pulse fiber laser (P higher than 200 W, variable pulse duration and shape)

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Short-pulse Solid-state Laser

  • Q-switched solid-state lasers of different wavelengths and output powers
  • Technical data:
    • Pulse durations between approx. 5 ns and approx. 2000 ns
    • Wavelengths approx. 355 nm, 532 nm and 1064 nm
    • Rated power up to 200 W
    • Pulse frequencies: Single pulse up to 500 kHz
  • Integrated in high-precision multi-axis processing stations with highly dynamic beam deflection by means of scanner (processing of flat, cylindrical components)

Pulsed CO2 Laser

Exposure of glass fibers in glass fiber reinforced thermoplastic by CO2 laser.
© Fraunhofer IWS
Exposure of glass fibers in glass fiber reinforced thermoplastic by CO2 laser.
  • Sealed-off CO2 laser system with highly dynamic beam deflection by means of scanner
  • Technical data:
    • Variable pulse duration in 10 - 400 µs
    • Wavelength 10600 nm
    • Nominal power 250 W
    • Pulse frequencies: Single pulse - 65 kHz
    • Pulse energy up to approx. 360 mJ

CW Fiber Lasers

  • Modulable cw fiber lasers integrated in multi-axis processing system can be coupled with scanner and fixed optics (processing of flat, cylindrical components)
  • Technical data:
    • Wavelength approx. 1070 nm
    • Nominal power up to 100 W
    • Cw or modulated: single pulse - 80 kHz
    • Minimum pulse duration 1 µs

High-speed Camera

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© Fraunhofer IWS

  • High-speed camera technology with up to 400,000 Hz recording frequency, optionally with microscope optics
  • For the clarification of fast running (laser processing) processes,
  • Technical data:
    • Up to 400,000 images per second
    • Magnifications up to the microscope range
    • Fading out of disturbing process light by narrow band filters