Description

This paper describes the process of hydrodynamic drawing of low carbon steel wires, rope and spring wires, wires for prestressed concrete, and their effect on wire properties. Pressures in chamber and draw stresses were measured for different geometry of approach and working die angles and different speeds and reductions. It has been proven that with a pressure increase draw stress decreases, the process is more stable, die life is longer but lubricant consumption and surface roughness are higher. Implementation of pressure dies in wire plants improved wire properties and yields.