Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Bernhard Karpuschewski"'
Autor:
Lukas Schumski, Teresa Tonn, Jens Sölter, Kerstin Avila, Lizoel Buss, Bernhard Karpuschewski, Udo Fritsching
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 8, Iss 2, p 69 (2024)
Minimum quantity lubrication (MQL) technologies possess great potential for improving the sustainability of manufacturing processes, which can reduce the absolute quantity of metalworking fluid (MWF) and also enable near-dry chips that are easier to
Externí odkaz:
https://doaj.org/article/120513495057478c9e73b06e670bfe76
Publikováno v:
Applied Mechanics, Vol 2, Iss 3, Pp 571-580 (2021)
Understanding the effect of thermomechanical loads during finish cutting processes, in our case hard milling, on the surface integrity of the workpiece is crucial for the creation of defined quality characteristics of high-performance components. Com
Externí odkaz:
https://doaj.org/article/fac3644a336f49cab42caa1fb4157794
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:
Applied Sciences, Vol 12, Iss 9, p 4671 (2022)
The Barkhausen noise (BN) analysis is a method increasingly used for the post-process assessment of thermo-mechanical surface damages from grinding and has several advantages compared with the established nital etching method. In-process measurement
Externí odkaz:
https://doaj.org/article/4bdacfa81eb643dd981a354ee29e6a5f
Publikováno v:
Materials, Vol 14, Iss 13, p 3699 (2021)
Cold gas spraying (CS) is a solid-state material deposition process which, in addition to the flexible repair of individual component areas, also enables the build-up of larger samples. The layers are created on a substrate by the impact-induced bond
Externí odkaz:
https://doaj.org/article/32c4dfc5a5404b31b7b3e7c4ebe7b4f1
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:
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
Publikováno v:
Micromachines, Vol 10, Iss 5, p 312 (2019)
Metallic implants were the only option for both medical and dental applications for decades. However, it has been reported that patients with metal implants can show allergic reactions. Consequently, technical ceramics have become an accessible mater
Externí odkaz:
https://doaj.org/article/73aeff44579f40b888a4c9f49726f634
Autor:
Lars Schönemann, Oltmann Riemer, Bernhard Karpuschewski, Per Schreiber, Heinrich Klemme, Berend Denkena
Publikováno v:
Precision Engineering. 77:349-359