Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Bernd Breidenstein"'
Publikováno v:
European Journal of Materials, Vol 4, Iss 1 (2024)
Ultra-hard cutting materials such as polycrystalline diamond (PCD) and cubic boron nitride (PcBN) are increasingly being used as cutting tools in machining. The finishing of cutting tools is challenging due to their mechanical and thermal properties.
Externí odkaz:
https://doaj.org/article/0f1fef46be744862a5f9a2601ac1610b
Publikováno v:
SN Applied Sciences, Vol 4, Iss 5, Pp 1-17 (2022)
Article Highlights Investigating material removal mechanisms of rocks against the background of tool grinding. Identifying optima of cutting speed and single grain chip thickness for ductile material removal for rocks. Contributing to a knowledge-bas
Externí odkaz:
https://doaj.org/article/7118d2abc35a4213941cf4688d298428
Publikováno v:
Tribology in Industry, Vol 44, Iss 1, Pp 143-149 (2022)
The residual stress state in tool coatings can positively influence tool life. Measurement in strongly curved surfaces e.g. in the cutting edge area is only possible to a limited extent by means of X-ray diffraction (XRD). Raman spectroscopy offers g
Externí odkaz:
https://doaj.org/article/c0227554fe37479b98631138036bffe1
Autor:
Berend Denkena, Bernd Breidenstein, Alexander Krödel, Benjamin Bergmann, Tobias Picker, Philipp Wolters
Publikováno v:
SN Applied Sciences, Vol 4, Iss 1, Pp 1-21 (2021)
Abstract This study presents an investigation of the usability and suitability of natural rocks as cutting tool materials. Therefore, indexable inserts are manufactured from eight different rocks and two mono minerals in this study and are used for t
Externí odkaz:
https://doaj.org/article/c550844b58504f47805439cf937557ce
Publikováno v:
SN Applied Sciences, Vol 3, Iss 12, Pp 1-9 (2021)
Article Highlights The study shows that it is possible to manufacture tools from glass and glass-ceramic for machining by grinding. Glass tools are suitable for machining plastic, glass ceramic tools can be used for machining plastic and aluminum. Gl
Externí odkaz:
https://doaj.org/article/e36ef256ad0e43dc8f82d978469702ae
Autor:
Christin Finger, Meike Stiesch, Michael Eisenburger, Bernd Breidenstein, Sarah Busemann, Andreas Greuling
Publikováno v:
SN Applied Sciences, Vol 2, Iss 10, Pp 1-8 (2020)
Abstract A defined surface roughness is important for the adhesive bonding of veneering ceramic to zirconia frameworks. Thus, we investigated the effects that sandblasting has upon the surface roughness and residual stress of zirconia. So as to achie
Externí odkaz:
https://doaj.org/article/c646d2ee41224d91a3d65f9b1536fc8c
Autor:
Berend Denkena, Bernd Breidenstein, Marc-André Dittrich, Hai Nam Nguyen, Lara Vivian Fricke, Hans Jürgen Maier, David Zaremba
Publikováno v:
Advances in Industrial and Manufacturing Engineering, Vol 2, Iss , Pp 100044- (2021)
During the turning process of metastable austenitic steels, austenite is transformed into hard martensite by plastic deformation at low temperatures. This enables the production of components, which have both a hardened subsurface zone and a ductile
Externí odkaz:
https://doaj.org/article/6b73ff3dbe194533951433a7348cf78f
Autor:
Lara Vivian Fricke, Gregory Gerstein, Andreas Kotzbauer, Bernd Breidenstein, Sebastian Barton, Hans Jürgen Maier
Publikováno v:
Metals, Vol 12, Iss 5, p 747 (2022)
Deformation-induced martensitic transformation as the basis of a hardening process is dependent, among others, on the stress state. In applications such as cryogenic cutting, where a hardened martensitic subsurface can be produced in metastable auste
Externí odkaz:
https://doaj.org/article/4a160411f1f04c39a9bba8a3931ea250
Autor:
Steffen Heikebrügge, Bernd Breidenstein, Benjamin Bergmann, Christian Dänekas, Peter Schaumann
Publikováno v:
Journal of Manufacturing and Materials Processing, Vol 6, Iss 3, p 50 (2022)
Welded joints show a comparably low fatigue strength compared to the base material. Thus, different post-weld treatment methods are used to enhance the fatigue strength of welded joints. A promising method to enhance the fatigue strength of metallic
Externí odkaz:
https://doaj.org/article/4c88a5f97a2d434ea17ab48ff877a2eb
Publikováno v:
Materials, Vol 15, Iss 6, p 2187 (2022)
The need for rare resources, such as tungsten or cobalt, combined with the high energy requirements to produce cutting materials, is forcing research and development to work out environmentally friendly alternatives. Natural rocks could be an alterna
Externí odkaz:
https://doaj.org/article/39c50cbb3d034d6284d22ecaccfbf130