Fatigue Analysis of Forging Die

In the present study, the repeated forging experiments were conducted using the real forging machine. For supplement of the experiments, forging simulation was also conducted to evaluate the forging load vs. stroke relation during the forging process. Further, stress intensity factor K at the fatigu...

Full description

Saved in:
Bibliographic Details
Published in:Journal of thermal stresses 2012-01, Vol.35 (1-3), p.157-168
Main Authors: Horita, A., Ishihara, S., Goshima, T., Kawamoto, M., Kurosaki, E., Sawai, M., Takata, M.
Format: Article
Language:English
Subjects:
Crack propagation
Equivalence
Fatigue
Fatigue (materials)
Fatigue crack propagation
Fatigue failure
FEA
Forging
Forging die
Materials fatigue
Punches
Simulation
Stress analysis
Studies
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the present study, the repeated forging experiments were conducted using the real forging machine. For supplement of the experiments, forging simulation was also conducted to evaluate the forging load vs. stroke relation during the forging process. Further, stress intensity factor K at the fatigue crack-tip initiated in the real forging tool was evaluated using the new method proposed in the present study. Conclusions obtained are summarized as follows: (1) The cracked portions found in both the real forging-die and -punch are places where the maximum equivalent stresses occur during the forging process; (2) the data (da/dN, K) evaluated for the real forging die and punch corresponds well with the experimental relation da/dN vs. K obtained in laboratory air; and (3) the proposed simulation method is useful for estimating lifetimes of the forging die and punch.
ISSN:0149-5739
1521-074X
DOI:10.1080/01495739.2012.637758