Thermo-Mechanical Simulation of Hard Turning with Macroscopic Models

Chapter
Part of the Lecture Notes in Production Engineering book series (LNPE)

Abstract

Based on the concept of generalized stresses, a multi-mechanism model has been developed concerning asymmetric visco-plasticity, asymmetric hardness dependency and transformation induced plasticity (TRIP), which are decisive phenomena affecting the process-related ductility in hard turning. The asymmetric effects are taken into account using the concept of weighting functions related to stress modes such as tension, compression and shear. The model also considers the phase transformations between martensite and austenite during the material heating as well as austenite and white layer formation due to the so-called reverse martensite transformation. Hardness modifications as a result of the white layer formation are considered. Moreover, the model is specialized for chrome bearing steel AISI 52100 and applied in cutting simulations using the commercial Finite-Element-Method (FEM) software systems ABAQUS and Deform. The evaluation of the simulation results enables the analysis of the influence of crucial actuating variables on the machining accuracy.

Notes

Acknowledgements

This paper is based on investigations of SPP 1480 which is kindly supported by the Deutsche Forschungsgemeinschaft (DFG). Furthermore, we gratefully acknowledge the support of the company Nordmetall, Adorf, Germany, for performing the mechanical tests related to the asymmetric visco-plasticity and hardness dependency and Stiftung Institut für Werkstofftechnik (IWT), University of Bremen, for performing the dilatometer tests related to the TRIP-strains.

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Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • E. Uhlmann
    • 1
  • R. Mahnken
    • 2
  • I. M. Ivanov
    • 1
  • C. Cheng
    • 2
  1. 1.Institute for Machine Tools and Factory Management (IWF), Technische Universität BerlinBerlinGermany
  2. 2.Chair of Engineering Mechanics (LTM)University of PaderbornPaderbornGermany

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