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

作　　者：陈元琨 王晓康[2] 赵仕奇 杨朋飞 高铁军[1] CHEN Yuankun;WANG Xiaokang;ZHAO Shiqi;YANG Pengfei;GAO Tiejun(College of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,Liaoning China;Chengdu Aircraft Industrial(Group)Co.,Ltd.,Chengdu 610091,Sichuan China)

机构地区：[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

出　　处：《锻压装备与制造技术》2024年第2期136-139,共4页China Metalforming Equipment & Manufacturing Technology

基　　金：辽宁省教育厅高校基本科研面上项目(LJKZ0192)。

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。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 improves the stress state of the sheet and reduces the maximum equivalent stress,but also changes the deformation 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 

分 类 号：TG306[金属学及工艺—金属压力加工]