Transactions of Materials and Heat Treatment

Title：Experimental research and numerical simulation of hot bulging tests for TC1 hemisphere part

Authors： XIAO Jun-jie LI Dong-sheng LI Xiao-qiang JIN Chao-hai LI Jun-lin

Unit： Beihang University

KeyWords： TC1 titanium alloy sheet rigid die hot bulging numerical simulation high temperature forming

ClassificationCode：TG386

year,vol(issue):pagenumber：2011,36(6):11-14

Abstract：

The rigid die bulging experiment for TC1 sheet was carried out at 700℃ to investigate the forming ability of TC1 at elevated temperature. The resistance to oxidation of the titanium sheet was studied at the different kinds and consistency dopes coating in different heating times. The process conditions and parameters of the rigid die hot bulging of the titanium sheet were determined. Using 36*MAT3_PARAMETER_BARLAT model, the rigid die hot bulging TC1 sheet hemisphere part was simulated by DYNAFORM utilizing the true stress-strain curve and the property parameters which came from the uniaxial tensile test at 700℃. Finally, the experimental results were compared with the simulated results in two aspects: the thinning rate and the strains. The comparison shows that they are basically agreed with each other. This verifies the validity and accuracy of the simulation of the high temperature forming for titanium sheet with the chosen material model.

Funds：

航空科学基金资助项目（2010ZE51050）；中国博士后科学基金特别资助项目（201003038）；中央高校基本科研业务费专项资金资助项目（YWF-10-01-B08）;国家自然科学基金资助项目(51175022)

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