Analysis of the nonuniformity of deformation over the wire cross section in axisymmetric drawing is based on the additional shear strain, determined analytically or by measuring the microhardness distribution.An expression for the additional shear strain is determined by the upper-limit method, using the kine matically possible disruptive velocity field. The influence of the geometric parameter of the deformation source on the nonuniformity is analyzed. As an example, the calculated and experimental data are compared for the drawing of X18H9T steel wire.
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