Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Oltmann, Riemer"'
Publikováno v:
Journal of Advanced Mechanical Design, Systems, and Manufacturing, Vol 16, Iss 5, Pp JAMDSM0054-JAMDSM0054 (2022)
Ultraprecision cutting used for creating highly precise components and particularly micro-shapes requires ultraprecision machine tools. However, these machine tools are operated under restricted cutting conditions such as feed rate and depth of cut,
Externí odkaz:
https://doaj.org/article/8f1241ee89b144829d1cf4b9360abe98
Autor:
Huan Qi, Yuelei Wang, Zijian Qi, Liwu Shi, Zhufang Fang, Li Zhang, Oltmann Riemer, Bernhard Karpuschewski
Publikováno v:
Materials, Vol 15, Iss 23, p 8486 (2022)
A novel grain-based DEM (Discrete Element Method) model is developed and calibrated to simulate RB-SiC (Reaction-Bonded Silicon Carbide) ceramic and associated scratching process by considering the bonded SiC and Si grains and cementitious materials.
Externí odkaz:
https://doaj.org/article/76affa7b989d4dad82164c85d8d7431d
Publikováno v:
Fluids, Vol 7, Iss 3, p 119 (2022)
The microfluid jet polishing (MFJP) process is a manufacturing technology in which small abrasive particles (such as diamond, alumina, and ceria) are premixed with a carrier fluid (typically water) to form a liquid suspension that is pressurized and
Externí odkaz:
https://doaj.org/article/4237e0b507ec4ad5bb88fc01ff92ca5e
Autor:
Lars Schönemann, Oltmann Riemer, Bernhard Karpuschewski, Per Schreiber, Heinrich Klemme, Berend Denkena
Publikováno v:
Precision Engineering. 77:349-359
Publikováno v:
Micromachines, Vol 12, Iss 5, p 526 (2021)
The functional properties of a workpiece are determined by a modification of the surface and subsurface materials. In this work, the correlation between thermo-mechanical material loads and the modification of the residual stresses is presented. Whil
Externí odkaz:
https://doaj.org/article/80986f57d7bf4e769f50a7e1eda649b0
Autor:
Björn Beckschwarte, Julian Heidhoff, Lasse Langstädtler, Christian Schenck, Oltmann Riemer, Bernd Kuhfuss
Publikováno v:
Key Engineering Materials. 926:1725-1735
In electromagnetic embossing, the interaction of the magnetic field and the induced current density results in body forces that enable the replication of optical microstructures into thin sheet metals. However, as the sheet metal is completely penetr
Publikováno v:
CIRP Journal of Manufacturing Science and Technology. 37:291-301
Autor:
Daniel Gräbner, Tjarden Zielinski, Andrey Vovk, Oltmann Riemer, Bernhard Karpuschewski, Walter Lang
Publikováno v:
Sensors, Vol 21, Iss 4, p 1530 (2021)
The loads acting on a workpiece during machining processes determine the modification of the surface of the final workpiece and, thus, its functional properties. In this work, a method that uses thermocouples to measure the temperature in precision f
Externí odkaz:
https://doaj.org/article/0d3dd322943e4100a2aa802c73ecb353
Autor:
Ann-Katrin Boinski, Barnabas Adam, Arne Vogelsang, Lars Schönemann, Oltmann Riemer, Bernhard Karpuschewski
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 5, Iss 1, p 12 (2021)
In recent years, the use of highly functional optical elements has made its way into our everyday life. Its applications range from use in utility items such as cell phone cameras up to security elements on banknotes or production goods. For this pur
Externí odkaz:
https://doaj.org/article/e243a6324b5447f6b3c0014a56a0e16a
Autor:
Marius Herrmann, Björn Beckschwarte, Henning Hasselbruch, Julian Heidhoff, Christian Schenck, Oltmann Riemer, Andreas Mehner, Bernd Kuhfuss
Publikováno v:
Materials, Vol 13, Iss 21, p 4939 (2020)
Electromagnetic forming is a high-speed process, which features contactless force transmission. Hence, punching operations can be realized with a one-sided die and without a mechanical punch. As the forces act as body forces in the part near the surf
Externí odkaz:
https://doaj.org/article/93959d5df6804e288f3712c7595f4219