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Characterization of Nugget Development under Electrode Wear Conditions in Resistance Spot Welding
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English
Abstract
The effects of electrode wear on nugget development during resistance spot welding are major concerns in auto-body assembly and manufacturing. By considering detailed electrode-sheet interactions using advanced finite element modeling procedure, this paper presents a framework for detecting the electrode wear conditions and associated nugget development characteristics. Two important in-process parameters are studied in detail. They are the electrode movement and the dynamic resistance. It is found that the second-order derivative of the electrode movement and the first-order derivative of the dynamic resistance can be correlated in a fundamental form to identify the detailed nugget development process under various electrode wear conditions.
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Citation
Lu, F. and Dong, P., "Characterization of Nugget Development under Electrode Wear Conditions in Resistance Spot Welding," SAE Technical Paper 982363, 1998, https://doi.org/10.4271/982363.Also In
References
- Lu F. Dong P. Li V. White C.L. Kimchi M. “Electrode Wear Mechanisms during Resistance Spot Welding of Galvannealed Steels. (Part I: Welding with High Current)” 79 th AWS Annual Convention Detroit April 27 - 30 1998
- Dong P. Li M.V. Kimchi M. “Finite Element Analysis of Electrode Wear Mechanisms: Face Extrusion and Pitting Effects” Science and Technology of Welding and Joining 1998
- Dilthey Ulrich Dr. -Ing. Dickersbach Jorg Dipl. -Ing. “Quality Assurance of Resistance Spot Welding by Employment of Neural Networks”
- Matsuyama K. “Nugget Size Sensoring of Spot Weld Based on Neural Network Learning” Proc. of 7 th International Conference on Computer Technology in Welding San Francisco, CA July 8-11 1997
- Dong P. Kimchi M. Holmes S. “A Preliminary Study on Finite Element Modeling of Electrode Wear Mechanisms” Technical Report to Auto/Steel Partnership
- Sun X. Dong P. Kimchi M. “The Coupled Electrical-Thermal-Mechanical Process Associated with Aluminum REW” Proc. of 7 th International Conference on Computer Technology in Welding San Francisco, CA July 8-11 1997
- Li M. V. Dong P. Kimchi M. “Finite Element Modeling of Resistance Spot Welding of Galvanized Steel” Proc. of 7 th International Conference on Computer Technology in Welding San Francisco, CA July 8-11 1997
- Li M. V. Dong P. Kimchi M. “Modeling of Contact Resistance during Resistance Spot Welding” Proc. of 7 th International conference on Computer Technology in Welding San Francisco, CA July 8-11 1997