Correlation of Barreling Effect with Boundary Friction Coefficient during Upsetting of Various Materials Workpieces under Processing Conditions

@article{Kukhar2020CorrelationOB,
  title={Correlation of Barreling Effect with Boundary Friction Coefficient during Upsetting of Various Materials Workpieces under Processing Conditions},
  author={Volodymyr V. Kukhar and Eduard S. Klimov and S M Chernenko and Elena Balalayeva},
  journal={Materials Science Forum},
  year={2020},
  volume={992},
  pages={751 - 756},
  url={https://api.semanticscholar.org/CorpusID:218686206}
}
The necessity of taking into account the barreling effect at the design of die cavities, and open die and closed die forging processes on the basis of pre-forming of billets by upsetting is shown. The division of ideas about the indices of “bulk” and “linear” barreling (barrel shape), which is determined by the ratio of the bulk and linear dimensions of the workpiece after upsetting by flat dies, was made. The functional relation (correlation) between these indices and the friction coefficient… 
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6 Citations
Background Citations
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6 Citations

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Friction is one of the significant factors in forging operations since it affects metal flow in the die, forming load, strain distribution, tool and die life, surface quality of the product etc. In…

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