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Analysis of surface asperity flattening based on two different methods

Journal Article


Abstract


  • The stress state is an important parameter in metal forming processes, which significantly influences the strain state and microstructure of products, affecting their surface qualities. In order to make the metal products have a good surface quality, the surface stress state must be optimised. In this study, two classical methods, the upper bound method and the crystal plasticity finite element method, were investigated. The differences between the two methods were discussed in regard to the model, the velocity field, and the strain field. Then the related surface roughness is deduced.

UOW Authors


  •   Li, Hejie (external author)
  •   Öchsner, Andreas (external author)
  •   Ni, Guowei (external author)
  •   Wei, Dongbin (external author)
  •   Jiang, Zhengyi (external author)

Publication Date


  • 2016

Citation


  • Li, H., Öchsner, A., Ni, G., Wei, D. & Jiang, Z. (2016). Analysis of surface asperity flattening based on two different methods. Continuum Mechanics and Thermodynamics, 28 (6), 1623-1634.

Scopus Eid


  • 2-s2.0-84962505544

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6061

Number Of Pages


  • 11

Start Page


  • 1623

End Page


  • 1634

Volume


  • 28

Issue


  • 6

Place Of Publication


  • Germany

Abstract


  • The stress state is an important parameter in metal forming processes, which significantly influences the strain state and microstructure of products, affecting their surface qualities. In order to make the metal products have a good surface quality, the surface stress state must be optimised. In this study, two classical methods, the upper bound method and the crystal plasticity finite element method, were investigated. The differences between the two methods were discussed in regard to the model, the velocity field, and the strain field. Then the related surface roughness is deduced.

UOW Authors


  •   Li, Hejie (external author)
  •   Öchsner, Andreas (external author)
  •   Ni, Guowei (external author)
  •   Wei, Dongbin (external author)
  •   Jiang, Zhengyi (external author)

Publication Date


  • 2016

Citation


  • Li, H., Öchsner, A., Ni, G., Wei, D. & Jiang, Z. (2016). Analysis of surface asperity flattening based on two different methods. Continuum Mechanics and Thermodynamics, 28 (6), 1623-1634.

Scopus Eid


  • 2-s2.0-84962505544

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/6061

Number Of Pages


  • 11

Start Page


  • 1623

End Page


  • 1634

Volume


  • 28

Issue


  • 6

Place Of Publication


  • Germany