By: Christian Freitag1,2, Margit Wiedenmann1, Jan-Philipp Negel1, André Loescher1, Volkher Onuseit1, Rudolf Weber1, Marwan Abdou Ahmed1, Thomas Graf1 In order to process Carbon fiber reinforced plastics (CFRP) with a satisfying productivity, average laser powers >1 kW are necessary. Usually high average laser powers are achieved using continuous wave (cw) laser systems but the appearance of thermal damage ranging […]
Ultrashort lasers
Post-Processing of LAM Parts with Ultrafast Lasers
By Ilya Mingareev, Tobias Bonhoff, Ashraf F. El-Sherif, Wilhelm Meiners, Ingomar Kelbassa, Tim Biermann and Martin Richardson Laser Additive Manufacturing (LAM) is a rapidly developing field of advanced fabrication technologies that will benefit many industries by enabling near-net shape manufacturing of high-value components from metals, ceramics and compound materials. However, the geometry and the surface quality of parts […]
Welding Characteristics of Foturan Glass Using Ultrashort Laser Pulses
By Isamu Miyamoto, Yasuhiro Okamoto, Kristian Cvecek, Michael Schmidt, Henry Helvajian While glass is widely used in different industrial field due to its excellent physical and chemical properties, there exist no reliable joining procedures of glass at the moment. We have developed a novel fusion welding procedure of glass that can weld glass even with […]
Novel Fusion Welding Technology of Si/Glass Using Ultrashort Laser Pulses with High Pulse Repetition Rates
By I. Miyamoto, Y. Okamoto, A. Hansen, T. Amberla, J. Vihinen, J. Kangastupa Silicon/glass is one of the most widely used material combinations for sensing and actuating microsystems and micro electronic technologies. Anodic bonding has been most widely used for Si/glass bonding since its invention in 1969, because of its excellent mechanical properties and process […]