锻压技术

5A06铝合金复杂盒形件等温锻造工艺研究

英文标题：Study on isothermal forging process for complex boxshaped parts of aluminum alloy 5A06

作者：刘奇李保永郭晓琳李信

分类号：TG376.2

出版年,卷(期):页码：2017,42(6):16-20

摘要：

针对5A06铝合金复杂盒型件，利用有限元分析软件Deform，确定了先预成形后终成形的等温锻造成形工艺方案。并通过逆向补偿方法设计了预成形及终成形模具。在20 MN锻压机上，先将铝合金板材预锻成预制坯，然后再等温终锻。等温锻造工艺中，模具温度为(450±10)℃，5A06铝合金预制坯温度为(465±10)℃，成形时最大挤压力为14000 kN。等温锻造试验表明；Deform有限元分析对等温锻造成形工艺研究具有较强的指导意义，采用先预成形后终锻成形工艺能大大提高锻件成形质量；此外，5A06铝合金等温锻造盒型件相较于机械加工盒型件，抗拉强度Rm提高到350 MPa，伸长率A提高到25%。

For the complex boxshaped parts of aluminum alloy 5A06, the isothermal forging process of preforming before the final forging process was confirmed by finite element simulation software Deform, and the preformed die and final die were designed by the reverse compensation method. In 20 MN hydraulic press, the aluminum plate was preforged, and then the isothermal final forging was conducted. In the isothermal final forging, the temperature of die was(450±10)℃, the temperature of aluminum alloy 5A06 performed was (460±10)℃, and the highest forming force was 14000 kN. The isothermal forging experiment shows that the finite element analysis software Deform has a strong guiding significance for the study of isothermal forging process, and the forging quality can be greatly improved by preforming before the final forging process. In addition, the aluminum alloy 5A06 isothermal forging boxshaped part is better than the machined one with tensile strength up to 350 MPa and elongation A up to 25%.

基金项目：

刘奇（1990-），男，硕士，工程师

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