The strength of the ring nugget in sheet-to-tube single-sided spot welding is different from that of the button nugget in traditional sheet-to-sheet spot welding.
管板单边电阻点焊由于其焊接结构的特殊性，生成熔核的外形为环状，其强度不能用传统的圆形焊点强度经验公式计算。
The strength of the ring nugget in sheet-to-tube single-sided spot welding is different from that of the button nugget in traditional sheet-to-sheet spot welding.
管板单边电阻点焊由于其焊接结构的特殊性，生成熔核的外形为环状，其强度不能用传统的圆形焊点强度经验公式计算。
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