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Production Engineering

, Volume 4, Issue 2–3, pp 115–125 | Cite as

Empirical modeling of hard turning of AISI 6150 steel using design and analysis of computer experiments

  • Benedikt SiebenEmail author
  • Tobias Wagner
  • Dirk Biermann
Production Process

Abstract

In the present paper an experimental study to investigate the turning of hardened AISI 6150 heat treatable steel using polycrystalline boron nitride (PCBN) tools is presented. Design and analysis of computer experiments (DACE) was used to generate a comprehensive empirical description of the process characteristics. More specific, the effects of the parameters cutting speed, feed and depth of cut on the objectives tool wear, tool life, tool life volume, surface finish and process forces were modeled. A total of 157 experiments was carried out with 15 different parameter-value sets to obtain the training data for modeling the progression of the objectives versus cutting path length and width of flank wear land. Pseudo-3D surface plots are generated to visualize the effects and interactions. Unexpected effects of depth of cut on tool life were found and the validity of conclusions about the effect of cutting speed on tool wear and tool life are discussed. Moreover, qualitative explanations for some of the observed effects are presented.

Keywords

Hard turning Design and analysis of computer experiments Empirical modeling Tool wear Surface finish 

Notes

Acknowledgments

This paper is based on investigations of the collaborative research center SFB/TR TRR 30, which is kindly supported by the DFG.

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Copyright information

© German Academic Society for Production Engineering (WGP) 2010

Authors and Affiliations

  1. 1.Institute of Machining TechnologyTechnische Universität DortmundDortmundGermany

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