Shaping and Combining of Laser Beams – New potentials in manufacturing processes
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Shaping and Combining of Laser Beams – New potentials in manufacturing processes
Wed, 25/03/2026 - 14:00 to 15:00
Location:
Speaker:
Dr. Christian Hagenlocher
Affiliation:
University of Stuttgart
Synopsis:
Recent laser sources and optical technologies enable highly dynamic beam shaping, characterised by rapid changes in intensity and its local distribution. The ability to shape the beam almost arbitrarily opens up new control possibilities for laser-based manufacturing processes such as welding, additive manufacturing or drilling. When welding with a continuous wave laser, the beam shape can be used to adjust the shape of the vapour keyhole, which directly affects the melt flow to achieve pressure distributions that help prevent spatter or cracking. When drilling with ultra-short pulses, beam shaping in combination with additive and subtractive machining enables the drilling of curved holes.
Biography:
Dr Hagenlocher's research concentrates on modelling and direct measurement of laser-material interactions with an emphasis on using optical beamshaping to alter the thermal profile, and thus the process dynamics in laser based manufacturing processes particularly melt pool and material flow effects. His talk will be of interest to colleagues working in areas of laser-material interaction, welding technology, additive manufacturing and optical beamshaping.