Fatigue life prediction model of WC-Co cold forging dies based on experimental and numerical studies

Tanrikulu B., KARAKUZU R.

ENGINEERING FAILURE ANALYSIS, vol.118, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 118
  • Publication Date: 2020
  • Doi Number: 10.1016/j.engfailanal.2020.104910
  • Journal Name: ENGINEERING FAILURE ANALYSIS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, DIALNET, Civil Engineering Abstracts
  • Keywords: WC-Co, Fatigue life, Finite element analysis, Three-point bending test, CRACK-GROWTH, HARD METALS, BEHAVIOR
  • Dokuz Eylül University Affiliated: Yes

Abstract

This study presents experimental and numerical studies to predict fatigue life of WC-Co 20% cold forging die. In order to determine the fatigue behavior of the material, three-point bending fatigue tests were performed and Morrow-Haigh diagrams were constructed. The analytical formulation was established by means of Basquin correlation obtained from the experimental results and die life was estimated according to the stress amplitude and mean stress values obtained from the finite element analysis. Verification of the analytical formulation was also carried out by obtaining the fatigue life cycle of the die from production line. The findings obtained showed that the life estimation method made the correct prediction with a deviation of 5.6%.