Analysis of the Stress-Strained State of Billets Processed by Rotary Forging with Special Shape of the Tool

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In this paper, we investigated the process of rotary forging of commercially pure copper grade M2 ​​using standard and special-shaped anvils and presented the results of studies obtained by the method of numerical and physical modeling. It is established that the use of anvils with special geometric shapes provides a higher level of accumulated strain and the formation of more dispersed structural states with the same elongation ratio under conditions of multi-cycle processing [1]. The formation of a finer structure in its turn increases the hardness and strength of the material. In addition, the special shape of the anvils provides a positive field of values ​​of the Lode-Nadai coefficient in the cross section of the samples, predominantly in a range of 0.3-0.7 and, correspondingly, a more "comfortable" stress state close to non-uniform all-round compression, which contributes to increasing technological plasticity.

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Edited by:

Prof. Arcady Zhukov

Pages:

16-21

Citation:

R. Asfandiyarov et al., "Analysis of the Stress-Strained State of Billets Processed by Rotary Forging with Special Shape of the Tool", Journal of Metastable and Nanocrystalline Materials, Vol. 31, pp. 16-21, 2019

Online since:

January 2019

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DOI: https://doi.org/10.1063/1.321718

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