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.
There are presented original experimental results of studying rheological behavior of Vitralloy 1 (Zr41Ti14Cu12.5Ni10Be22.5), which shows in the certain strain rate range stable linear viscous (Newtonian) flow. Comparative analysis of these results and the results related to other superplastic alloys as well as to crystallizing metallic melts has been carried out.
Blank punch was applied for manufacturing of hollow billets by press piercing. Analysis of piercing by different punches was carried out. Data showing fluctuating of load during piercing and changing of billet’s shape was received.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.