Numerical Die Life Estimation of a Crack Susceptible Industrial Hot Forging Process

被引：1
作者：
Bouguecha, A. [1 ]
Behrens, B. -A. [1 ]
Bonk, C. [1 ]
Rosenbusch, D. [1 ]
Kazhai, M. [1 ]
机构：
[1] Inst Forming Technol & Machines IFUM Hannover, Univ 2, D-30823 Garbsen, Germany
来源：
PROCEEDINGS OF THE 20TH INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING (ESAFORM 2017) | 2017年 / 1896卷
关键词：
FEA; fatigue life; crack initiation; hot forging; die life estimation;
D O I：
10.1063/1.5008225
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In industrial hot forging processes, the forging dies underlie cyclic thermo-mechanical loads, which can lead to failure of the tools. Besides die wear (abrasive and adhesive) on the surface, fatigue crack initiation with a following fracture of the tool is one of the most frequent failures occurring in hot forging processes. In this study an industrial hot forging process is considered for fatigue analysis. Tool geometry is designed for a defined life time until crack initiated failure of the tool. Material characterization tests in form of tensile tests as well as cylindrical compression tests and low cycle fatigue tests were carried out. The data will be implemented in a commercial software-system to realize a qualitative good prediction of die life regarding crack wiation.
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页数：6
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