Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Felix Tenner"'
Autor:
Marion Merklein, Michael Schmidt, Felix Tenner, Thomas Frick, Tobias Laumer, Tino Hausotte, Thomas Stichel
Publikováno v:
Journal of Materials Processing Technology. 252:537-545
The mechanical properties of polymer parts built by Selective Laser Sintering are strongly related to the internal microstructure which differs with the applied production parameters. The paper focuses on the back tracing of the pore morphology of la
Publikováno v:
Procedia CIRP. 74:636-639
In this paper we present results from process observations of deep penetration laser welding using a hyperspectral imaging (HSI) technique. For monitoring different types of laser-based material processing, we developed an appropriate high-speed came
Autor:
Tobias Laumer, Michael Schmidt, Felix Tenner, Thomas Frick, Marion Merklein, Tino Hausotte, Thomas Stichel
Publikováno v:
Optics & Laser Technology. 89:31-40
The mechanical and microstructural investigation of polymer parts (polyamide 12) fabricated by Selective Laser Sintering as part of a Round Robin initiative is presented. The paper focuses on the microstructural analysis of the Round Robin samples an
Publikováno v:
Optics & Laser Technology. 80:77-83
In the present study we show how fast the fluid dynamics change when changing the laser power for different feed rates during laser metal welding. By the use of two high-speed cameras and a data acquisition system we conclude how fast we have to imag
Autor:
Stefan Stein, Johannes Heberle, Florian Hugger, Felix Tenner, Friedrich-Alexander-Universität Erlangen-Nürnberg, Michael Schmidt, Stephan Roth, Michael Suchy
Publikováno v:
Journal of Laser Micro/Nanoengineering. 11:111-116
In this paper a drop on demand based method of joining metallic layers of about 20 µm thick- ness with Cu-conductors of 100 µm diameter is presented. The process is based on melting spherical preforms of copper based braze (CuSn12) with a liquidus
Publikováno v:
Physics Procedia. 83:1233-1243
The laser brazing of steel sheets is widely applied in car-body manufacturing. The critical value for the strength of the joint is the minimal connection width between the two sheets. However, this value is depending on the feed rate and power of the
Autor:
Florian Hugger, Felix Tenner, Konstantin Hofmann, Fabian Gärtner, Stephan V. Roth, Vincent Mann
Publikováno v:
Applied Mechanics and Materials. 805:171-179
Compared to steel, the required amount of energy for conventional welding of copper is higher, due to its higher thermal conductivity. This problem is mainly solved by preheating the work pieces or welding processes with high intensities such as lase
Autor:
Axel Schramm, Michael Schmidt, Mona Sohle, Karen Schwarzkopf, Martin Regensburger, Zeev Zalevsky, Felix Tenner
Publikováno v:
EMBC
Involuntary muscle activities like fasciculations or tremor are an indication for several neurological disorders. However, currently used techniques for measuring those activities are limited due to their invasiveness, the unsuitability for measuring
Publikováno v:
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology. 129(2)
Objective The aims of this study were to investigate the detection radius and sensitivity of EMG for fasciculations. Methods Muscle ultrasonography was performed simultaneously to EMG recordings in patients with fasciculations in the context of amyot
Publikováno v:
International Congress on Applications of Lasers & Electro-Optics.
In this paper a further characterization of the hyperspectral imaging (HSI) system that we developed is presented. This camera-based system is meant to be used for temperature determination in laser-based material processing. It comprises a high-spee