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Abstract：
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Near net forming process is one of the main forming methods of energetic materials. However, after the raw material is formed by the near net forming process, the demolding process needs to be studied in order to ensure that the punch is evenly stressed and the demolding process is smooth during the demolding process. Therefore, a columnar near net shape forming finite element model of energetic materials was established by general finite element analysis software ABAQUS, and the whole process of the demolding process was simulated and analyzed. Then, the maximum stresses of the mold and the punch during the demolding process were obtained, and the demolding force-punch displacement curve during the demolding process was given. Furthermore, the influence of the loading speed on the demolding force during the demolding process was analyzed, and the demolding forces under two typical loading speeds were analyzed respectively. The results show that the established finite element simulation model can effectively simulate the demolding process in the near net shape forming and provide guidance for the relevant parameter design and engineering practice of the demolding process.
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Funds：
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高档数控机床与基础制造装备国家科技重大专项（2016ZX04005-002）
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AuthorIntro：
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作者简介：聂军刚（1984-），男，硕士，工程师
E-mail：nie_jg@163.com
通讯作者：吴进军（1978-），男，博士，研究员
E-mail：jinjun_wu@163.com
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Reference：
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