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| Dynamic simulation of resistance spot welding of zinc-coated steels | |
| 引用本文： | 王璐 王敏 卢凤桂. Dynamic simulation of resistance spot welding of zinc-coated steels[J]. 中国焊接, 2006, 15(4): 39-42 |
| 作者姓名： | 王璐 王敏 卢凤桂 |
| 作者单位： | School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200030 |
| 摘 要： | A model was developed to simulate the temperature distribution and nugget formation during resistance spot welding （ RS1V） of zinc-coated steels. It employs a coupled thermal-electrical-mechanical analysis simulating the dynamic RSW process. Temperature-dependent thermal-electrical-mechanical material properties were considered including contact-resistance. The contact area was determined from a coupled thermal-mechanical analysis. A layer of transition elements was used to represent the change of contact area by killing or activating elements. The heat generation and temperature field were computed in a coupled thermal-electrical model. All these analyses were solved using the commercial finite element method （FEM） based on ANSYS code, and some advanced functions were used by writing a paragraph of codes by the authors. Compared with the results from only coupled thermal-electrical model in which contact area was uniform during the whole process, the result matches better to the experimental results. |
| 关 键 词： | 镀锌钢板 接触点焊 动态模拟 接触面 热学-力学分析 |
Dynamic simulation of resistance spot welding of zinc-coated steels |
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| Wang Lu,Wang Min,Lu Fenggui. Dynamic simulation of resistance spot welding of zinc-coated steels[J]. China Welding, 2006, 15(4): 39-42 | |
| Authors: | Wang Lu Wang Min Lu Fenggui |
| Abstract: | A model was developed to simulate the temperature distribution and nugget formation during resistance spot welding (RSW)of zinc-coated steels.It employs a coupled thermal-electrical-mechanical analysis simulating the dynamic RSW process.Temperature-dependent thermal-electrical-mechanical material properties were considered including contact-resistance. The contact area was determined from a coupled thermal-mechanical analysis.A layer of transition elements was used to represent the change of contact area by killing or activating elements.The heat generation and temperature field were computed in a coupled thermal-electrical model.All these analyses were solved using the commercial finite element method (FEM)based on ANSYS code,and some advanced functions were used by writing a paragraph of codes by the authors. Compared with the results from only coupled thermal-electrical model in which contact area was uniform during the whole process,the result matches better to the experimental results. |
| Keywords: | simulation resistance spot welding zinc-coated steels thermal-mechanical analysis |
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