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The finite-element method is used to study the effect of the design parameters of the die on the production of hollow brass parts by cold direct extrusion and expansion on a cone punch. The results are compared with data on conventional indirect extrusion. The elastic deformation and increase in the temperature of the metal during cold extrusion are taken into account. Intermediate and final shapes...
An integrated process is considered for preparing gas turbine engine compressor blade workpieces made of alloy VT22, eutectically strengthened with titanium boride. The efficiency of two-stage extrusion for alloy of the Ti–TiBn system is demonstrated, with which in the first stage preliminary crushing of harder strengthening phase TiBn is provided by deformation under all-round compression conditions...
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