About the validity of the plastic wave model for an actual roughness of axisymmetric tooling in bulk forming
Source abstract
Abstract
The plastic wave friction model proposed for bulk forming simulation is a synthesis of the Coulomb-Amonton and Tresca-constant friction stress laws. It is based on a theoretical triangular shaped roughness whence machining of axisymmetric tooling surface with inserts induces a circular arc roughness profile. For two different surface punches with the same standard roughness parameters, the numerical modelling of a particular upsetting of a cylindrical billet of perfect plastic material shows how a circular arc roughness profile induces more friction than a triangular one with the analysis of the plastic flow inside the roughness asperities in the frame work of a mesoscopic approach.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced Surface Polishing Techniques · Metal Forming Simulation Techniques · Metallurgy and Material Forming
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References (3)
Show source-provided references
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2. E. Vidal-Sallé, S. Boutabba, Y. Cui, J.C. Boyer, An improved "plastic wave" friction model for rough contact in axisymmetric modeling of bulk forming processes, 11th ESAFORM Conference on material Forming, Lyon (2008), in International Journal of Material Forming.10.1007/s12289-008-0132-y ↗
3. E. Vidal-Sallé, L. Baillet, J.-C Boyer., Friction law and parameter identification, 2nd ESAFORM Conference on Material Forming, Guimarães (1999), 603–606