FEM ANALYSIS OF EFFECT OF DIE ANGLE ON STRAIN AND STRESS STATE IN PROCESS OF DRAWING OF STEEL FOR PRESTRESSED CONCRETE

摘要

In the paper the results of a computer simulation of the drawing process of steel wires for a prestressed concrete have been presented with FEM software (Forge 2). Dies with a different die angle 2 alpha = 8 deg, 12 deg and 18 deg were used in the drawing process of a DB92 steel wire rod with 5,5 mm in diameter (according to Polish Standards) in five passes for final wires with 2,5 mm in diameter. After every pass mechanical properties and draw stresses were determined.