Compositional Design of Ceramic Extrusion Die Materials Based on the Residual Stress Analyses in the Die Manufacturing Process

Abstract:

In the die manufacturing process of ceramic extrusion die, the residual stress was produced resulted from the thermal expansion coefficient mismatch between ceramic die and die core of graphite. As a result, the longitudinal cracks were formed in the ceramic extrusion die. The thermal residual stress formed in the cooling process was analyzed by finite element simulation method. The result indicated that the thermal expansion coefficient was the primary factor which could affect the tensile stress of ceramic extrusion die. Then, the thermal expansion coefficient, elastic modulus and poisson's ratio of ceramic extrusion die material were selected as design variables, and the largest tensile stress that less than allowable stress of ceramic die material was determined as the objective function, the material component were optimized according to the finite element simulation. The longitudinal cracks were eventually avoided.

• Periodical: Advanced Materials Research (Volumes 291-294)
• Pages: 1709-1712
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.291-294.1709
• Online since: July 2011
• Authors: Chong Hai Xu, Jing Jie Zhang, Zhen Yu Jiang, Ming Dong Yi
• Keywords: Ceramic Material, Compositional Design, Die Manufacturing, Extrusion Die

References

[1] Lian Gao, Wei Li, Nano Ceramics, Beijing: Chemical Industry Press, 2002(In Chinese)

[2] Dongtao Jiang, Omer Van der Biest, and Jef Vleugels, ZrO2-WC Nanocomposites with Superior Properties. Journal of European Ceramic Society, Vol 27, pp.1247-1251, 2007(In Chinese)

DOI: 10.1016/j.jeurceramsoc.2006.05.028

[3] Guangchun Xiao, Chonghai Xu, and Bin Fang, et al, Research on the Engineering Performance of Ceramic Die Materials. Rare Metal Materials And Engineering, Vol 36, pp.770-773, 2007(In Chinese)

[4] Richerson D W, Modern Ceramic Engineering, Properties, Processing and Use in Design, New York: Marcel dekker publication Inc, (1992)

[5] Zuoqian Cai, Lian Wang, and Gen Yang, Ceramic Material. Beijing: Chemical Industry Press, 2002(In Chinese)

[6] University of Science & Technology Beijing, Northeastern University, Engineering Mechanics. Beijing: Higher Education Press, 1979(In Chinese)

[7] Jianwu Yan, Chenshu Zhang, Weilan Wang, et al, Study on Preparation and Performance of Si3N4/SiC(N) Multi-phase Nano-ceramics. Tool Engineering, Vol 37, pp.3-6, 2003(In Chinese)