缶用表面処理鋼板の動的接触抵抗と溶接性 [in Japanese] Relationship between Dynamic Contact Resistance and Weldability of Can Materials [in Japanese]
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Amethod of evaluating the continuity of the weld nugget in mash seam can body welding was developed. In this method, the change in electric resistance at the interface between the materials is measured with a rectangular current pulse during spot welding. Weldability is affected by the difference in the initial and final material interface resistance and by the rate of increase in interface resistance. Materials which have a wide welding current range in mash seam welding show lower initial and higher final interface resistance. Increasing the welding electrode force, which widens the welding current range in seam welding, reduces the rate of increase in interface resistance. These phenomena are attributed to the welding current path, which is affected by material interface electric resistance.
- Jitsumu Hyomen Gijutsu
Jitsumu Hyomen Gijutsu 47(1), 62-66, 1996-01
The Surface Finishing Society of Japan