Failure Analysis of Hot Forging Dies

R Ebara; K Kubota

doi:10.1520/STP17381S

SYMPOSIA PAPER Published: 01 January 1986

STP17381S

Failure Analysis of Hot Forging Dies

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Impact failure of hot forging dies occurs frequently from surface cracks due to mechanical or thermal fatigue. However, useful information regarding failure analysis of hot forging dies is scarce because few data exist on the fracture behavior and fractography of hot forging die steels.

In this paper, what is mainly described is dynamic fracture toughness, low cycle fatigue behavior, and fracture surface appearances of hot forging die steels. A couple of quantitative analyzed examples of fracture toughness and temperature by use of stretched zone width measurement for hot forging die failure are described.

Author Information

Ebara, R

Hiroshima Technical Institute, Mitsubishi Heavy Industries, Hiroshima, Japan

Kubota, K

Tokyo Motor Vehicle Works, Mitsubishi Motors Corp., Kawasaki, Japan

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Details

Developed by Committee: A01

Pages: 583–592

DOI: 10.1520/STP17381S

ISBN-EB: 978-0-8031-4970-0

ISBN-13: 978-0-8031-0465-5

Failure Analysis of Hot Forging Dies

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