Handbook of Case Histories in Failure Analysis
Fatigue Failure of Extrusion Dies: Effect of Process Parameters and Design Features on Die Life
Several failed dies were analyzed and the results were used to evaluate fatigue damage models that have been developed to predict die life and aid in design and process optimization. The dies used in the investigation were made of H13 steels and fractured during the hot extrusion of Al-6063 billet material. They were examined to identify critical fatigue failure locations, determine corresponding stresses and strains, and uncover correlations with process parameters, design features, and life cycle data. The fatigue damage models are based on Morrow’s stress and strain-life models for flat extrusion die and account for bearing length, fillet radius, temperature, and strain rate. They were shown to provide useful information for the analysis and prevention of die failures.
S.S. Akhtar, A.F.M. Ari, Fatigue Failure of Extrusion Dies: Effect of Process Parameters and Design Features on Die Life, Handbook of Case Histories in Failure Analysis, Vol 3, Edited By Larry Berardinis, ASM International, 2019, p 255–265, https://doi.org/10.31399/asm.fach.v03.c9001788
Download citation file:
The ASM Data Ecosystem is a new and innovative product line that arms ASM Members and the scientific community with the tools and data required to exponentially expand the boundaries of materials science to meet the needs of Industry 4.0.