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Production Engineering

, Volume 8, Issue 5, pp 551–558 | Cite as

Surface and subsurface alterations induced by deep rolling of hardened AISI 1060 steel

  • A. M. AbrãoEmail author
  • B. Denkena
  • B. Breidenstein
  • T. Mörke
Production Process

Abstract

Among the several processes available for the inducement of compressive residual stresses by means of cold work hardening, deep rolling is one of the most widely used especially in the case of solid rotationally symmetrical components, such as axles and shafts. This work investigates the effect of two deep rolling parameters, namely rolling pressure and number of passes, on the surface topography, surface near residual stress, amount of retained austenite and subsurface microhardness distribution of hardened AISI 1060 steel. The results show that after deep rolling the surface topography is characterized by a plasticized zone without evidence of spalling or cracks. A 10-fold decrease in surface roughness is provided by deep rolling and an appreciable reduction was observed for the material ratio curve parameters. Compressive residual stresses were found near the surface after deep rolling and increased particularly with an increase in rolling pressure. In contrast, the highest value for the full width at half maximum was recorded under the lightest deep rolling condition. The amount of retained austenite reached its highest value when rolling with pressure of 200 bar and one pass and was associated with the thickness of the white layer. Finally, the microhardness beneath the surface increased with rolling pressure and was negatively affected by number of passes.

Keywords

Deep rolling Hardened steel Surface roughness Residual stress White layer Microhardness 

Notes

Acknowledgments

The authors are grateful to the German Research Foundation for funding the Collaborative Research Centre 653. A.M. Abrão would like to express his gratitude to to the CAPES Foundation, Ministry of Education of Brazil, for funding his post-doctoral scholarship (Grant No. 10118128). The authors are also indebted to the Institute of Materials Science of the Leibniz Universität Hannover for the heat treatment and mechanical testing of the specimens and to both Ecoroll AG Werkzeugtechnik (Celle, Germany) and Sandvik Tooling Deutschland GmbH for the provision of deep rolling and cutting tools, respectively.

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Copyright information

© German Academic Society for Production Engineering (WGP) 2014

Authors and Affiliations

  • A. M. Abrão
    • 1
    Email author
  • B. Denkena
    • 2
  • B. Breidenstein
    • 2
  • T. Mörke
    • 2
  1. 1.Universidade Federal de Minas GeraisBelo HorizonteBrazil
  2. 2.Institute of Production Engineering and Machine ToolsLeibniz Universität HannoverGarbsenGermany

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