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Abstract：
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Aimed at the possible wrinkles, springback during the forming process of shallow spherical shell，the stamping process and spingback of shallow spherical shell were simulated and analyzed by software Dynaform. First of all, the forming conditions under different lubrication conditions and different blank holder forces were compared, when the friction coefficient was 0.1 and 0.2，the internal wrinkle was not occurred on the premise that the blank holder force was above 600 kN and 200 kN respectively. Then, the optimum blank was Φ440 in diameter and 2.05 mm in thickness. Secondly, the springback analysis of shallow spherical shell was carried out, and the largest springback amount 0.805 mm was found at its aperture. Finally, the springback compensation was conducted on the basis of simulation analysis, and the actual stamping test was carried out which were in good agreement with the finite element simulation results. The results show that the simulation analysis can provide the basis for the stamping and the optimization of process parameters of shallow spherical shell and reduce the production cost and improve the design level.
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Funds：
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中国工程物理研究院精密实验室资助项目(K848-13-JSS)
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AuthorIntro：
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杨文华(1988－)，男，硕士，工程师
E-mail： ywh060962@126.com
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Reference：
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