Abstract
Enlargement of electrode face diameter in resistance spot welding was the main factor that led to undersize nugget diameter. A mathematics model was established to estimate electrode face diameter by applying the characteristic that servo gun can detect axial wear online but not equip additional measurement apparatuses. Firstly the precision of servo gun was compensated to assure it can meet the requirement of axial wear measurement online. Then the model was established to estimate electrode face diameter online by a minimum amount of experiment data to determine the numerical constant in the model. To verify the model, electrode life tests for welding different galvanized steels were carried out. It was shown that estimation results of the model agreed well with the experiment results and spot welding the steels with higher electrode wear rate would result in a shorter electrode life
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References
R. holiday, J. parker, N.T. Williams (1996) Relative contribution of electrode tip growth mechanisms in spot welding zinc coated steels. Welding in the World 37(4):186–193
K L Chatterjee, W Waddell (1996) Electrode wear during spot welding of coated steels. Welding & Material Fabrication (3):110–114
D. Bracun, J.D. iacl, I. Polajnar, J. Mozina (2002) Using laser profilometry to monitor electrode wear during resistance spot welding. Science and Technology of Welding and Joining 7(5):294–298
Wei Li (2005) Modeling and on-line estimation of electrode wear in resistance spot welding. Journal of Manufacturing Science and Engineering (11):709–717
Zhang Xu-Qiang, Chen Guan-Long, Zhang Yan-Song (2005) Character analysis of servo gun technology in resistance spot welding process. Transactions of China Welding Institution 26(6):60–64
He Tang (2000) Machine mechanical characteristics and their influences on resistance spot welding quality. Philosophy Doctor Paper of Michigan University.
ABB (2002) ABB Flexible Automation for Savings With Servo Guns. ABB Corporation report (9)
K.C. Wu (1968) Electrode indentation criterion for resistance spot welding. Welding journal (10):472-s–478-s
S. FUKUMOTO, I. LUM, E. BIRO, D. R. BOOMER(2003) Effects of Electrode Degradation on Electrode Life in Resistance Spot Welding of Aluminum Alloy 5182. Welding Journal (11):307-s–312-s
P. DONG, M.V. LI, AND M. KIMCHI (1998) Resistance spot welding electrode wear on galvanized steels. Science and Technology of Welding and Joining 3(2):59–64
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© 2007 Springer-Verlag Berlin Heidelberg
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Lai, X.M., Zhang, X.Q., Chen, G.L., Zhang, Y.S. (2007). On-Line Estimation of Electrode Face Diameter Based on Servo Gun Driven by Robot in Resistance Spot Welding. In: Tarn, TJ., Chen, SB., Zhou, C. (eds) Robotic Welding, Intelligence and Automation. Lecture Notes in Control and Information Sciences, vol 362. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73374-4_22
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DOI: https://doi.org/10.1007/978-3-540-73374-4_22
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-73373-7
Online ISBN: 978-3-540-73374-4
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