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Influence of the metalworking fluid on the running behavior of gear analogy test parts

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Abstract

Boundary layers protect tooth flanks from solid-state contacts and, therefore, influence friction and wear. The characteristics of boundary layers (e.g. structure, chemical composition) and the running behavior of gears are determined by the manufacturing process (Klocke and Broeckmann in Prod Eng Res Dev 8(461):468, 2014; Brecher et al. in Prod Eng Res Dev 7:265–274, 2013). In this paper, the influence of the grinding fluid on the modification of boundary layers is shown. Analogy test parts are manufactured with varying fluids and additives. The differently ground test parts are measured regarding their boundary layer properties. Furthermore, the effects of the different resulting boundary layers on the running behavior are evaluated in finite life fatigue testing (pitting) on the two-disk test rig. By combining both measurement and test results, possible correlations between manufacturing and operation are investigated to establish a more sustainable and economical design of gears.

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Acknowledgments

The authors gratefully acknowledge scientific and financial support by the German Research Foundation (DFG) [Project Number BR 2905/44-1]. Furthermore, we thank Fuchs Europe Schmierstoffe GmbH for their consulting in terms of oil choice and for free supply of the applied oils. As well, we are grateful to Prof. Joachim Schulz, who contributed his ideas and experiences to our research.

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Authors and Affiliations

  1. WZL of RWTH Aachen University, Steinbachstraße 15, 52074, Aachen, Germany

    C. Brecher, C. Löpenhaus & R. Greschert

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  1. C. Brecher
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  2. C. Löpenhaus
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  3. R. Greschert
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Correspondence to R. Greschert.

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Brecher, C., Löpenhaus, C. & Greschert, R. Influence of the metalworking fluid on the running behavior of gear analogy test parts. Prod. Eng. Res. Devel. 9, 425–431 (2015). https://doi.org/10.1007/s11740-015-0612-0

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  • DOI: https://doi.org/10.1007/s11740-015-0612-0

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