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TESTING AND MEASURING Fluid Mechanics-based Research into beveled Punch-assisted Extrusion through a T-shaped Angular Domain

Von Alexander V. Perig, Donbass State Engi neering Academy, Kramatorsk, Ukraine Nikolai N. Golodenko, Donbass National Academy of Civil, Engineering and Ar chitecture, Kramatorsk, Ukraine 0 min Lesedauer

The paper is focused on a Computational Fluid Dynamics (CFD)-based description of local flow peculiarities during T-Equal Channel Angular Extrusion (T-ECAE) of an α-inclined punch-driven viscous fluid through a T-shaped die, derived with a numerical solution of a boundary value problem for the vorticity equation.

CFD-derived T-ECAE-associated plots for computational flow-lines ((a), (d)), absolute values of dimensionless flow velocities ((b), (e)) and the absolute values of dimensional tangential (shearing) stresses((c), (f)) for punch inclination angles of ((a), (b), (c)) and ((d), (e), (f)). T-die inlet is at the top and the outlets and are from the left and from the right, where inlet and outlet channel widths are equal with.(Bild:)
CFD-derived T-ECAE-associated plots for computational flow-lines ((a), (d)), absolute values of dimensionless flow velocities ((b), (e)) and the absolute values of dimensional tangential (shearing) stresses((c), (f)) for punch inclination angles of ((a), (b), (c)) and ((d), (e), (f)). T-die inlet is at the top and the outlets and are from the left and from the right, where inlet and outlet channel widths are equal with.
(Bild:)

The technological problem of local flow of extruded material through a T-shaped die is an interesting technical and instructional problem of polymer processing (Figures 1 - 3).