Journal of Korean Society for Quality Management (품질경영학회지)

Korean Society for Quality Management (한국품질경영학회)
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Process Optimization for Improving Resistance Welding Quality of Cylindrical Secondary Battery

원통형 이차전지의 저항용접 품질 향상을 위한 공정 최적화

  • Received : 2019.10.28
  • Accepted : 2019.12.26
  • Published : 2020.03.31
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Abstract

Purpose: This study aims to determine the optimal conditions for the spot welding process that mechanically connects the case of a cylindrical secondary battery and the negative tab. Methods: We use 33 factorial design to derive the optimal conditions for the spot welding process. The pulling strength, the cross-sectional area of nugget, and the shock test life are selected as response variables, which can represent the resistance welding quality. The input variables are selected as the welding time, welding voltage, and pressure, which are the controllable factors in the spot welding process. Results: The main effects of welding time and welding voltage and the interaction effect of welding time and welding voltage are significant. Conclusion: The optimal conditions for the spot welding process to mechanically join the negative electrode tab of the cylindrical secondary battery and the battery case are developed. The result shows that the pulling strength is increased by 44% compared to before improvement under optimal conditions.

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References

  1. Byun, J. H., Jung, C. S., Kim, D. H., and Park, K. H., 2019. A Case Study of Enhancing Flame Retardancy of Mixture Material. Journal of Korean Society for Quality Management 47(3):631-639. https://doi.org/10.7469/JKSQM.2019.47.3.631
  2. Chang, H. S. and Lee, J. Y. 2012. Monitoring of Resistance Spot Welding Processes. Journal of the Korean Welding and Joining Society 30(1):19-26. https://doi.org/10.5781/KWJS.2012.30.1.19
  3. Cho, S. M. 1997. Principle of Resistance Welding and Analysis of Monitoring Results. Journal of the Korean Welding and Joining Society 15(2):1-10.
  4. Cho, S. W., and Cho, S. M. 2004. A Development of Q-MEXS for In-Line Quality Monitoring in Resistance Welding. International Welding/Joining Conference-Korea. pp. 24-26.
  5. Cho. H. S. 2000. Welding Quality Supervision and Control in Resistance Welding Processes. Journal of the Korean Welding and Joining Society 18(4):11-19.
  6. Hong, M, S., and Kim, J. M. 2003. A Study on the Evaluation of Weldability in Spot Welding. Proceedings of the International Conference of Manufacturing Technology Engineers. pp. 301-306.
  7. Hwang, D. S., and Ko, M, H. 2012. Development and Application of Realtime Weld Quality Monitoring System. Journal of the Korean Welding and Joining Society 30(1):44-50. https://doi.org/10.5781/KWJS.2012.30.1.44
  8. Jeong, I. J. 2012 An Iterative Posterior Preference Articulation Approach to Dual Response Surface Optimization. Journal of Korean Society for Quality Management 40(4):481-495. https://doi.org/10.7469/JKSQM.2012.40.4.481
  9. Khaldoun K. T., and Ibrahim A. R. 2004. A Ddesign of Experiments Approach for Optimizing an Extrusion Blow Molding Process. Journal of Quality in Maintenance Engineering, Jordan 10(1):47-54. https://doi.org/10.1108/13552510410526866
  10. Kim, G. C., Lee, M. Y., and Lim, T. J. 1996. Effect of Process Parameters of Heat Input Efficiency in Condenser Discharge Welding. Proceedings of the Korean Welding and Joining Society. pp. 3-5.
  11. Kim, T. H., Yu, J. Y., Rhee, S. H., and Park, Y. H. 2010. Development of Intelligent Monitoring System for Welding Process Faults Detection in Auto Body Assembly. Journal of the Korean Welding and Joining Society 28(4):81-86. https://doi.org/10.5781/KWJS.2010.28.4.081
  12. Ko, M. H., Kim, J. W., Ham, H. S., and Cho, S. M. 2005. The Comparison of Average Dynamic Resistance and Instantaneous Dynamic Resistance Pattern during Half-Cycle for the Heat Generation Phenomena in Resistance Welding. Proceedings of the Korean Welding and Joining Society 305-307.
  13. Ko, M. H., Kim, S. Y., Son, J. Y., Lee, Y. B., and Cho, S. M. 2006. Comparison and Observation of Heating Phenomena by High Speed Camera and Waveform Monitoring in Spot Welding with Various Power Sources. Proceedings of the Korean Welding and Joining Society. pp. 80-82.
  14. Lee, D. H., Lee, M. L., and Bae, S. J., 2016. "A Study on Optimal Operation Conditions for an Electronic Device Alignment System by Using Design of Experiments. Journal of Korean Society for Quality Management 43(3):453-465. https://doi.org/10.7469/JKSQM.2015.43.3.453
  15. Lee, S. P., Kwon, H. M. Hong, S. H., and Lee, M. K. 2019. Optimization of the Extrusion Moulding Using Design of Experiments." Journal of the Korean Institute of Plant Engineering 24(2):13-21.
  16. Lithium-ion battery. 2018 Nov 10. Wikipedia. Available from: https://en.wikipedia.org/wiki/Lithium-ion_battery.
  17. Park, J. H., Cho, H. S., and Park, Y. J. 1999. The On-Line Quality Monitoring for Resistance Spot Welding Using the Pressure Pattern. Proceedings of the Korean Society for Precision Engineering. pp. 461-464.
  18. Recall of the Samsung Galaxy Note 7. last modified 2018 Sep 13. accessed 2018 Oct 10. Wikipedia, Available from: https://ko.wikipedia.org/wiki/%EC%82%BC%EC%84%B1_%EA%B0%A4%EB%9F%AD%EC%8B%9C_%EB%85%B8%ED%8A%B8_7_%EB%A6%AC%EC%BD%9C_%EC%82%AC%ED%83%9C#%EA%B2%B0%ED%95%A8%EC%9D%98_%EC%9B%90%EC%9D%B8.
  19. What is a Secondary Battery. POSCO Chemical. accessed 2018 Nov 10. Available from: http://www.poscochemical.com/kr/sub.do?MENU_SEQ=10307&PAGE_SEQ=10441&LANG=ko_KR.