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Consideration of residual stress and geometry during heat treatment to decrease shaft bending

  • Rémi HussonEmail author
  • Cyrille Baudouin
  • Régis Bigot
  • Edoardo Sura
ORIGINAL ARTICLE

Abstract

In automotive industry, heat treatment of components is implicitly related to distortion. This phenomenon is particularly obvious in the case of gearbox parts because of their typical geometry and precise requirements. Even if distortion can be anticipated to an extent by experience, it remains complex to comprehend. Scientific literature and industrial experience show that the whole manufacturing process chain has an influence on final heat treatment distortions. This paper presents an approach to estimate the influence of some factors on the distortion, based on the idea of a distortion potential taking into account not only geometry but also the manufacturing process history. Then the idea is developed through experiments on an industrial manufacturing process to understand the impact of residual stress due to machining on shaft bending and teeth distortion during heat treatment. Instead of being measured, residual stress is being neutralized. By comparing lots between each other, connections between gear teeth geometry and manufacturing steps before heat treatment are obtained. As a consequence, geometrical nonconformities roots can be determined more easily thanks to this diagnosis tool, and corrective actions can be applied. Secondly, the influence of product geometry on bending is experimentally considered. Moreover, metallurgical observations enable to explain the influence of workpieces geometry on shaft bending. Thanks to the obtained results, process and product recommendations to decrease shafts bending are proposed.

Keywords

Heat-treatment Shaft Manufacturing Distortion Identification 

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References

  1. 1.
    Kohlhoff T, Prinz C, Rentsch R, Surm H (2011) Influence of manufacturing parameters on gear distortion. Proc. of the 3rd international conference on distortion engineering 2011, Bremen, 14th to 16th September, pp 155–165Google Scholar
  2. 2.
    Cook W T (1999) A review of selected steel-related factors controlling distortion in heat-treatable steels. Heat Treat Met 26:27–36Google Scholar
  3. 3.
    Clausen B, Frerichs F, Kohlhoff T, Lübben T, Prinz C, Rentsch R, Sölter J, Surm H, Stöbener D, Klein D (2009) Identification of process parameters affecting distortion of disks for gear manufacture part I: casting, forming and machining. Materialwiss Werkst 40(5,6):354–360CrossRefGoogle Scholar
  4. 4.
    Hoffmann F, Keßler O, Lübben T, Mayr P (2002) “Distortion Engineering” Verzugsbeherrschung in der Fertigung. HTM 57(3):213–217Google Scholar
  5. 5.
    Zoch H W (2009) Distortion engineering: vision or ready to application. Materialwiss Werkst 40(5,6):342–348CrossRefGoogle Scholar
  6. 6.
    Cho J R, Kang W J, Kim M G, Lee J H, Lee Y S, Bae W B (2004) Distortions induced by heat treatment of automotive bevel gears. J Mater Process Technol 153:476–481CrossRefGoogle Scholar
  7. 7.
    Kohlhoff T (2009) Analysis of the forces in different regions during hobbing and their effect on distortion. Materialwiss Werkst 40:390–395CrossRefGoogle Scholar
  8. 8.
    Husson R, Dantan J Y, Baudouin C, Silvani S, Scheer T, Bigot R (2012) Evaluation of process causes and influences of residual stress on gear distortion. Ann CIRP 61(1):551–554CrossRefGoogle Scholar
  9. 9.
    Sugimoto T, Watanabe Y (2004) Evaluation of important factors affecting quench distortion of carburized hypoid gear with shaft by using computer simulation methods. Cailiao Rechuli Xuebao/Trans Mater Heat Treat 25(5):480–485Google Scholar
  10. 10.
    Husson R (2013) Contribution a l’identification des origines des deformations revelees au traitement thermique. Application a l’analyse d’une gamme de fabrication d’arbres a dentures de boites de vitesses. Arts et Metiers ParisTech, PhD thesisGoogle Scholar
  11. 11.
    Goch G (2003) Gear metrology. Ann CIRP 52(2):659–695CrossRefGoogle Scholar

Copyright information

© Springer-Verlag London 2014

Authors and Affiliations

  • Rémi Husson
    • 1
    • 2
    Email author
  • Cyrille Baudouin
    • 2
  • Régis Bigot
    • 2
  • Edoardo Sura
    • 1
  1. 1.Renault, Powertrain Process Engineering DivisionRueil MalmaisonFrance
  2. 2.LCFC (EA 4495)-Arts et Métiers ParisTechMetzFrance

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