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Investigation of extrusion limit of Incoloy028 alloy tube by combining numerical and analytical methods
- 作者:C. Y. Sun ; D. Liu ; M. W. Fu ; J. Yang
- 关键词:Hot extrusion ; Extrusion limit ; Numerical simulation ; Incoloy028 alloy
- 刊名:The International Journal of Advanced Manufacturing Technology
- 出版年:2016
- 出版时间:March 2016
- 年:2016
- 卷:83
- 期:1-4
- 页码:177-185
- 全文大小:914 KB
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- 作者单位:C. Y. Sun (1)
D. Liu (1) M. W. Fu (2) J. Yang (1)
1. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China 2. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
- 刊物类别:Engineering
- 刊物主题:Industrial and Production Engineering
Production and Logistics Mechanical Engineering Computer-Aided Engineering and Design
- 出版者:Springer London
- ISSN:1433-3015
文摘
Extrusion limit is an important evaluation criterion in extrusion process design as it determines the deformation degree in each operation. In this paper, a new method for establishment of extrusion limit diagram was proposed. To do so, the constitutive equation of Incoloy028 alloy (IN028) was established by hot compression test and the tube hot extrusion process was simulated by commercial Deform-2D software. In addition, the extrusion process is also analyzed by analytical method in which the billet heating temperature, extrusion speed and ratio were considered as influence factors. The analytical results of extrusion force and demoulding temperature were obtained. The maximum extrusion pressure of 60 MN and the eutectic melting temperature of IN028 (1,350 °C) was selected as the limit of extrusion force and the permissible maximum temperature. The limit diagram for IN028 tube in hot extrusion process were generated using the analytical and numerical methods simultaneously and the extrusion limit diagram of IN028 at different ratios is thus provided.
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