Browsing by Subject "Grinding (machining)"

Browsing by Subject "Grinding (machining)"

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  • Ahrens, M.; Fischer, R.; Dagen, M.; Denkena, Berend; Ortmaier, Tobias (Amsterdam : Elsevier, 2013)
    Using conventional grinding wheels, wheel-sided chatter vibration is one of the limiting factors in terms of productivity and surface finish. Initial vibration related to the dynamic behavior of the machine tool copy on ...
  • Ahrens, M.; Dagen, M.; Denkena, Berend; Ortmaier, Tobias (Amsterdam : Elsevier, 2016)
    Using conventional grinding wheels, self-excited vibrations are one of the most limiting factors in terms of productivity and process stability in cylindrical plunge grinding. Depending on the dynamic behavior of the ...
  • Denkena, Berend; Gümmer, Olaf (Amsterdam : Elsevier, 2013)
    Within the Collaborative Research Centre 489 at the Leibniz Universitaet Hannover a new and innovative process chain for the manufacture of crankshafts is being investigated. By burr-free and near-net-shaped precision ...
  • Denkena, Berend; Grove, Thilo; Suntharakumaran, Vino (Amsterdam : Elsevier B.V., 2018)
    Gears demand increasingly high quality regarding acoustic emissions, surface roughness and lifetime. Therefore, grinding is often the last step in the process chain of gear manufacturing. Grinding wheel grain sizes of 30 ...
  • Denkena, Berend; Grove, Thilo; Göttsching, Tim; da Silva, Eraldo Jannone; Coelho, Reginaldo Teixeira; Filleti, Remo (London : Springer Verlag, 2015)
    In this paper, a new and innovative method for the patterning of grinding wheels is presented. The patterns are machined with a patterning tool by using fly-cutting kinematics. By changing the patterning process parameters, ...
  • Ahrens, M.; Damm, J.; Dagen, M.; Denkena, Berend; Ortmaier, T. (Amsterdam : Elsevier BV, 2017)
    Using conventional grinding wheels, self-excited vibrations are one of the most limiting factors in terms of productivity and process stability in cylindrical plunge grinding. Depending on the dynamic behavior of the ...
  • Hockauf, Rolf; Asadi, Esmail; Denkena, Berend; Grove, Thilo; Wurz, Marc Christopher (Amsterdam : Elsevier B.V., 2018)
    To reduce friction in turbo machinery components, riblets are induced on compressor blades or pump impellers. Here, the grinding process enables a higher productivity in machining of riblet structures compared to knurling, ...
  • Denkena, Berend; Grove, T.; Göttsching, Tim (London : Elsevier Ltd., 2015)
    Grinding is one of the most important manufacturing processes, especially when high surface qualities have to be realized or if hard or brittle materials have to be machined. Often the grinding performance is limited by ...
  • Böß, Volker; Denkena, Berend; Breidenstein, B.; Dittrich, Marc-Andre; Nguyen, H.N. (Amsterdam : Elsevier B.V., 2019)
    Geometric modelling is an established approach for gathering detailed knowledge about the chronological sequence of process conditions and for determining technological values of machining processes such as milling, turning, ...
  • Denkena, Berend; Köhler, Jens; Turger, Anke; Helmecke, Patrick; Correa, Tomas A.; Hurschler, Christof (Amsterdam : Elsevier, 2013)
    To date, bioceramics have not been applied successfully in total knee joint endoprostheses. Sintered bioceramics can be machined only by grinding and polishing processes. Due to high quality requirements, there are significant ...
  • Denkena, Berend; Grove, Thilo; Göttsching, Tim (London : Springer, 2017)
    The grinding process is still an important manufacturing process for the machining of automotive components. For power train components, ultra-high carbon steel (UHC-steel) is a promising new innovative alloy because of ...
  • Denkena, Berend; Busemann, Sarah; Gottwik, Lukas; Grove, Thilo; Wippermann, Andi (Amsterdam : Elsevier BV, 2017)
    The technological basis for a cost-effective and reliable grinding process of mixed oxide ceramics requires a fundamental understanding of the prevailing grinding mechanisms to maintain surface quality and strength ...
  • Mulder, Ines; Huber, Stefan G.; Krause, Torsten; Zetzsch, Cornelius; Kotte, Karsten; Dultz, Stefan; Schöler, Heinz F. (Amsterdam : Elsevier, 2013)
    A new method for the analysis of trace gases from fluid inclusions of minerals has been developed. The purge and trap GC-MS system is based on the system described by Nolting et al. (1988) and was optimized for the analyses ...
  • Temuujin, J.; Minjigmaa, A.; Bayarzul, U.; Kim, D.S.; Lee, S.-H.; Lee, H.J.; Ruescher, C.H.; MacKenzie, K.J.D. (Madrid : Consejo Superior de Investigaciones Científicas (CSIC), 2017)
    Alkali-activated materials were prepared from pond ash from the Darkhan city (Mongolia) thermal power station. This ash contains about 60 wt % X-ray amorphous material in addition to quartz, mullite, hematite and ...
  • Grove, Thilo; Lucas, Henning; Denkena, Berend (Amsterdam : Elsevier B.V., 2018)
    The subsurface residual stress state of forming tools is an important factor for the lifetime of these tools. This is especially important for tools used in processes like sheet-bulk metal forming, where very high process ...
  • Denkena, Berend; Grove, Thilo; Theuer, Mirko; Liu, Yanwei (Amsterdam : Elsevier B.V., 2018)
    Cemented carbide tools are often used for milling operations that cause high thermal and mechanical process loads, e.g. machining processes for titanium alloys. However, the disposal of those tools after one life cycle ...
  • Denkena, Berend; Grove, Thilo; Krawczyk, T. (Amsterdam : Elsevier BV, 2016)
    A major goal in the design of turbomachinery is the increase of efficiency. To attain this increase, the flow losses must be reduced. A substantial proportion of the losses is generated by skin friction between compressor ...