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Fully coupled finite element analysis of an automatic multi-stage cold forging process

Authors
Byun, J.B.Lee, H.J.Park, J.B.Seo, I.D.Joun, M.S.
Issue Date
2020
Publisher
Scitec Publications Ltd.
Keywords
Automatic multi-stage cold forging; Complete analysis; Coupled analysis; Die deformation; Precision simulation
Citation
Solid State Phenomena, v.311 SSP, pp 88 - 93
Pages
6
Indexed
SCOPUS
Journal Title
Solid State Phenomena
Volume
311 SSP
Start Page
88
End Page
93
URI
https://scholarworks.gnu.ac.kr/handle/sw.gnu/8165
DOI
10.4028/www.scientific.net/SSP.311.88
ISSN
1012-0394
1662-9779
Abstract
In this paper, non-isothermal analysis of an automatic multi-stage cold forging process of a ball-stud is conducted using a new material model which is a closed form function of strain, temperature and strain rate covering low and warm temperatures for high-strength stainless steel SUS304. An assembled die structural analysis scheme is employed for revealing the detailed die stresses, which is of great importance for process and die design for metal forming of the materials with high strengths. Die elastic deformation is dealt with to predict final geometries of material with higher accuracy. A complete analysis model is proposed to be used for optimal design of process and die designs in automatic multi-stage cold forging of high-strength materials. ? 2020 Trans Tech Publications Ltd, Switzerland.
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