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Researchers from the University of Witwatersrand in South Africa have reported a review of research on residual stresses in carbon steel welding: formation mechanisms, mitigation strategies, and advances in advanced post weld heat treatment technologies. The relevant paper titled "A comprehensive review of residual stresses in carbon steel welding: formation mechanisms, mitigation strategies, and ...
In EU project ALBATROSS, Fraunhofer IWS has developed battery housing for E-vehicles.Laser processes with dynamic beam shaping create stable joints even in challenging material combinations. Recent applications demonstrate how to eliminate filler materials while improving quality, energy efficiency, and production logic.Fraunhofer Institute for Material and Beam Technology (IWS) will present novel...
Customized laser beams focused through transparent glass can generate a small dot inside the material. Researchers from Northeastern University have reported a method of using this small spot to improve laser material processing and increase processing resolution.Their research results are published in the journal Optics Letters.Laser processing, like drilling and cutting, is crucial in industrie...
When electrons move in molecules or semiconductors, their time scale is unimaginably short. The Swedish German team, including Dr. Jan Vogelsang from the University of Oldenburg, has made significant progress in these ultrafast processes: researchers are able to track the dynamics of electrons released on the surface of zinc oxide crystals using laser pulses with nanoscale spatial resolution and p...
The gravitational wave background was first detected in 2016. This was announced after the release of the first dataset by the European pulsar timing array. The second set of data has just been released, combined with the timed array of Indian pulsars, and both studies have confirmed the existence of the background. The latest theory seems to suggest that we are seeing a comprehensive signal of th...