In the present work, there are presented the results of experimental studies on the basis of
regression analysis and FEM-based modeling of the processes of aluminum alloys preforms and
semi-finished products manufacture including such widely known processes as cutting rolled
products by shear and thixotropic stamping (stamping of metal during crystallization). It is
investigated the influence of technological heredity created by variation of cant angles of end
surfaces and mono- and poly-directional pulling-down by shear in cutting rolled blanks on stability
of the process of subsequent longitudinal upsetting while producing preforms for bulk stamping. As
a result of studying the ways of eliminating such negative consequences of technological heredity
and increasing high-strength aluminum alloys technological plasticity, there is revealed the
possibility of using phase transitions (from solid to liquid state and back) while manufacturing
semifinished products in thixotropic conditions close to superplastic deformation.
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