邱超斌,郭庆磊,郎利辉,等.铝合金船形深腔薄壁构件充液成形变形规律研究[J].精密成形工程,2021,13(1):133-138.
QIU Chao-bin,GUO Qing-lei,LANG Li-hui,et al.Deformation Regularity of Aluminum Alloy Boat Shaped Deep-cavity and Thin-walled Part in Hydroforming[J].Journal of Netshape Forming Engineering,2021,13(1):133-138. |
| 铝合金船形深腔薄壁构件充液成形变形规律研究 |
| Deformation Regularity of Aluminum Alloy Boat Shaped Deep-cavity and Thin-walled Part in Hydroforming |
| 投稿时间：2020-08-07 |
| DOI：10.3969/j.issn.1674-6457.2021.01.018 |
| 中文关键词: 船形深腔 充液成形 变形规律 数值模拟 实验验证 |
| 英文关键词: boat shaped deep cavity hydroforming deformation regularity numerical simulation experimental verification |
| 基金项目:国家自然科学基金(51675029) |
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| 中文摘要: |
| 目的 解决一种铝合金船形深腔薄壁构件成形时尖端过渡部位容易起皱和入口圆角处容易破裂的问题。方法 应用有限元软件DYNAFORM建立充液成形的有限元模型，研究关键工艺参数对成形结果的影响规律并进行理论分析，最后通过充液成形实验对该工艺方案进行验证。结果 根据工艺优化方案，得出在最大液室压力为4 MPa，初始反胀压力为0，压边间隙为2.2 mm时零件的成形效果最好。结论 通过充液成形的方法，可以有效解决船形深腔薄壁构件尖端部位的起皱和入口圆角处的破裂缺陷，提高成形质量。 |
| 英文摘要: |
| The work aims to solve the problems of wrinkling at the tip and cracking at the entrance fillet of aluminum alloy boat shaped deep-cavity and thin-walled part. A finite element model of hydroforming was established by DYNAFORM software, and the effects of key process parameters on the forming effect were studied. Finally, the forming scheme was verified by hydroforming experiment. According to the process optimization scheme, the forming effect of the part was the best when the maximum liquid chamber pressure was 4 MPa, the initial inverse bulging pressure was 0, and the blank holder gap was 2.2 mm. By adopting the hydroforming process, the wrinkling at the tip and cracking at the entrance fillet of the part can be effectively solved, and the forming quality can be effectively improved. |
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