A Research on the Principle of Thermo-Stress Sizing and its Application for Titanium Alloy Sheet

Ming He Chen; Lan Sheng Xie; Lei Liu

doi:10.4028/www.scientific.net/KEM.535-536.288

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 535-536A Research on the Principle of Thermo-Stress...

A Research on the Principle of Thermo-Stress Sizing and its Application for Titanium Alloy Sheet

Abstract:

The thermo-stress sizing is a technology that enables sheet metal part using high elastic material such as titanium alloy to eliminate spring-back and distortion. The paper expounds and proves the principle of fixing shape of thermal stress sizing, that is, they are synthetic effects of materia1 softening and stress relaxation in short time．Then the theoretical rule of hot sizing for bending spring-back is established by this principle．On the basis of principle of the thermo-stress sizing, relevant replication experiment is implemented. The results show quantitatively effects of main factors, such as material property, part geometry, temperature and time for the rule of hot sizing． The theoretical values of spring-back in the process of hot sizing are in good agreement with that of experiments. They may be used to estimate technological parameters of thermal stress sizing．In addition thermo-mechanical characteristics under standard temperatures of forming or sizing and the experimental curves of thermo-stress sizing for Ti-6Al-4V and Ti-2A1-1.5M n are given．

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Periodical:

Key Engineering Materials (Volumes 535-536)

Pages:

288-291

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.535-536.288

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Online since:

January 2013

Authors:

Ming He Chen, Lan Sheng Xie, Lei Liu

Keywords:

Precise Forming, Springback, Thermo-Stress Sizing, Titanium Alloy Sheet

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References

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