CHANGES IN MICROSTRUCTURE AND MECHANICAL PROPERTIES OF CIP-PROCESSED TUNGSTEN RODS DURING ROTARY-SWAGING AND STRETCHING OPERATIONS

Duman İ., Ağaoğulları D.

138th TMS Annual Meeting and Exhibition, San-Francisco, Costa Rica, 15 - 19 February 2009, pp.217-225 identifier

  • Publication Type: Conference Paper / Full Text
  • City: San-Francisco
  • Country: Costa Rica
  • Page Numbers: pp.217-225
  • Istanbul Technical University Affiliated: Yes

Abstract

The microstructure of the in rotary swagers hammered rods is gradually transformed from sintered to compact metallic. In order to gain a high quality product, it is essential to optimize the conditions of wire draft production and to control the recrystallization (inductive annealing) process particularly. Tensile strength of swaged rods (wire drafts) is determinative for the next step i.e. stretching on turn-tables.