The mechanism responsible for the effect of noncontact zones in metal-shaping operations is examined. A theoretical relation is derived to determine the magnitude of thrusting stresses that are formed, and a comparison is made between results obtained by calculation. An algorithm is developed to calculate the energy-force parameters of the process with allowance for the effect of nonuniform plastic deformation caused by the presence of noncontact zones.
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Translated from Metallurg, No. 10, pp. 61–65, October, 2012. Original article submitted May 25, 2012.
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Nikitin, G.S., Galkin, M.P. & Zhikharev, P.Y. Effect of noncontact zones on the deforming forces in metal-shaping operations. Metallurgist 56, 766–772 (2013). https://doi.org/10.1007/s11015-013-9648-6
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DOI: https://doi.org/10.1007/s11015-013-9648-6