期刊
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
卷 121, 期 11-12, 页码 8221-8230出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00170-022-09888-5
关键词
Incremental sheet forming; Electric hot forming; Electric-thermal-force coupling; Joule heating effect; Numerical simulation
资金
- National Natural Science Foundation of China [51175257]
- Scientific and Technological Research Program of Chongqing Science and Technology Bureau [cstc2021jcyj-msxmX1047]
- Talent Introduction Project of Kunming University [XJ20210033]
Considering electric-thermal-force coupling is crucial for accurately predicting the Joule heating effect in electric hot incremental sheet forming. A novel numerical simulation method is proposed to update the thermal-force condition instantly, and a high-precision finite element model is established for predicting the Joule heating effect of the forming region.
Since the deformation region involves the interaction of electric-thermal-force coupling in electric hot incremental sheet forming, the numerical simulation of the forming process is unusually difficult. Currently, the thermal-force coupling method is adopted to simulate approximately the whole forming process, and the Joule heating effect is often ignored. Therefore, the numerical simulation of the Joule heating effect is especially significant for the prediction accuracy of forming process. In this paper, a novel numerical simulation method considering electric-thermal-force parameters was proposed to update the thermal-force condition of the forming region instantly. Meanwhile, the model of contact thermal conductance was established, combining geometrical and electric-thermal parameters. Then a high-precision finite element model was obtained to predict the Joule heating effect of the forming region. In addition to this, the impact of thermal superposition on forming temperature was further analyzed, and a modified model of contact thermal conductance was established in electric hot incremental sheet forming.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据