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Article
Influence of thermal stress on the formation of plastic-flow zones in the hot forging of cylindrical blanks
The plastic-flow zone is simulated in the initial stage of hot extension of a cylindrical blank in hammer forging. The stress-intensity curve is obtained for the total elastic-stress tensor (corresponding to m...
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Article
Initial stress in the hot forging of a cylindrical blank
A model is proposed for the hot extension of small-diameter cylindrical steel blanks in complex faces to obtain round forgings. Plane deformation is considered. The stress state is calculated on the basis of t...
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Article
High-temperature plasticity of the solidification zones of continuous-cast Э76Φ rail-steel billet
The high-temperature plasticity of electrosmelted Э76Φ rail steel is investigated in the range 950–1250°C. The best plasticity is obtained at 1150°C, with satisfactory microstructure.
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Article
Laws of electrical stimulation of plastic deformation of metals and alloys at various structural levels
The laws governing the electrical stimulation of plastic deformation at various structural levels are reviewed. The following topics are covered: the hierarchy of external current stimuli affecting plastic def...
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Article
Stress-strain state of a circular diaphragm in dynamics
The study of the deformation of diaphragms by impulsive loadings is an urgent problem in view of the more and more widely used techniques of high-speed forming of sheet materials (hydroexplosive, electromagnet...
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Article
Experimental investigation of plastic waves in copper plates