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Proceedings of the National Academy of Sciences of Belarus. Physical-technical series

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A study of metal plasticity of billets processed by cross-wedge rolling

Abstract

Metal plasticity as applied to non-monotonic cross-wedge rolling has been studied. A domain of plastic properties of billets with contained plasticity has been determined. It has been shown that the technology of cross-wedge rolling for such billets must be developed considering minimal utilization of the plasticity margin in the axial area of billets. There has been plotted the critical degree of the shear strain against the two parameters of the strain state - the mean stress and the third invariant of the stress deviator for a steel 40X billet at a temperature of 1370 K.

About the Authors

S. A. Astapchik
Физико-технический институт НАН Беларуси
Belarus


G. V. Kozhevnikova
Физико-технический институт НАН Беларуси
Belarus


References

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2. Кожевникова Г. В. Теория и практика поперечно-клиновой прокатки, Мн., 2010.

3. Макушок Е. М., Матусевич А. С., Северденко В. П., Сегал В. М. Теоретические основы ковки и горячей объемной штамповки. Мн., 1968.

4. Кожевникова Г. В. // Весцi НАН Беларусi Сер. фiз.-тэхн. навук. 2010. № 2. С. 61-68.


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ISSN 1561-8358 (Print)
ISSN 2524-244X (Online)