With additive manufacturing, highly customized parts of high complexity and resolution can be fabricated. Mixing nanoparticles into the feedstock polymer powders may improve the outcome of the laser powder bed fusion. With a multitude of evaluation techniques, Alexander Sommereyns investigated the i...
The recent publication of Lisa Ackermann deals with “Uniform and efficient beam shaping for high-energy lasers”. By setting two spatial light modulators in a proper arrangement, she realized a setup that enables tailored light fields even for high-energy pulsed lasers. Thus, she was able to create a...
Thermal lensing is an unwanted effect in optics used for high-power laser imaging. The high light intensity causes a heat up of the lenses which induces a focus shift. To tackle this issue, Phillip Rall recently presented a “Simulation and compensation of thermal lensing in high-power optical system...
With her “Arrangement for the benchmarking of in-situ process monitoring of topographical process signatures within the Laser Powder Bed Fusion process”, Karen Schwarzkopf presents a custom made setup for examination of defect mechanisms in additive manufacturing.
This setup combines a low-cohere...
In their recent publication, Markus Labus and Peter Lang present “A versatile fibre-based setup for two-line atomic fluorescence thermometry in aerosol processes”. They implemented a new kind of hexagonal close-packed burner for high precision temperature measurements of combustion processes.
By...
For his conference contribution “Determination of the beam position in laser deep penetration welding using coaxially acquired images of the keyhole front and machine learning”, Pablo Dilger trained a convolutional neural network in evaluation of high-speed images of laser welding processes. With hi...
Even nowadays, in the age of growing electromobility, the understanding of soot formation in combustion processes will remain import for many years to come.
Florian Bauer’s “In situ characterization of absorbing species in stationary premixed flat flames using UV–Vis absorption spectroscopy” sho...
