铝合金抛物线形零件反向粘性介质压力成形工艺研究
Study of parabolic aluminum alloy parts by viscous backpressure forming
陈元琨 1王晓康 2赵仕奇 1杨朋飞 1高铁军1
作者信息
- 1. 沈阳航空航天大学 航空宇航学院,辽宁 沈阳 110136
- 2. 成都飞机工业(集团)有限公司,四川 成都 610091
- 折叠
摘要
针对铝合金抛物线形零件在成形时容易出现拉裂、起皱等问题,提出了采用反向粘性介质压力成形方法进行此类零件成形.通过对抛物线形零件的成形过程进行有限元分析,得到不同反向粘性介质压力下试件等效应力及变化趋势,并采用实验方法对其过程进行验证.研究结果表明,反向粘性介质压力成形不仅改善了板料应力状态,使最大等效应力减小,同时也改变了板料变形路径,有效提高了板料成形性能,在反向粘性介质压力为 9.2MPa时成形出了满足要求的零件.
Abstract
Aiming at the problems of aluminum alloy parabolic parts that are prone to tearing and wrinkling during forming,the viscous backpressure forming method is proposed to form such parts.Through the finite element analysis of the forming process of parabolic parts,the equivalent stress and deformation tendency of the specimen under different viscous backpressure were obtained,and the experimental method is used to validate the molding process.The research results indicate that the viscous backpressure forming not only im-proves the stress state of the sheet and reduces the maximum equivalent stress,but also changes the defor-mation path of the sheet and effectively improves the forming performance of the sheet.The qualified part with no defects was obtained under 9.2 MPa viscous backpressure.
关键词
铝合金/抛物线形件/反向粘性介质压力/有限元分析Key words
Aluminum alloy/Parabolic part/Viscous backpressure/Finite element analysis引用本文复制引用
基金项目
辽宁省教育厅高校基本科研面上项目(LJKZ0192)
出版年
2024
NETL
NSTL
万方数据