Dynamic electrode displacement and force were characterized during resistance spot welding of aluminum alloy 5182 sheets using a medium-frequency direct-current welder. It was found that both electrode displacement and force increased rapidly at the beginning of the welding stage and then at a reducing rate. Rates of increase in electrode displacement and force were both proportional to welding current. And both electrode displacement and force experienced a sudden drop when weld metal expulsion occurred. However, the rate of increase in electrode displacement did not reach zero during welding even for joints with sufficient nugget diameter, while electrode force peaked when a large nugget diameter was produced. Possible strategies for process monitoring and control were also discussed.
Dynamic Electrode Force and Displacement in Resistance Spot Welding of Aluminum
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received July 2003; revised Dec. 2003. Associate Editor: S. Jack Hu.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Ji,, C. T., and Zhou,, Y. (September 7, 2004). "Dynamic Electrode Force and Displacement in Resistance Spot Welding of Aluminum ." ASME. J. Manuf. Sci. Eng. August 2004; 126(3): 605–610. https://doi.org/10.1115/1.1765140
Download citation file:
- Ris (Zotero)
- Reference Manager