Rapid application of an axial force completes the upset welds.The localized heating is in high current, low voltage pulses for which a homopolar welding generator is utilized.

Electric resistance welding provides localized heating for simultaneous upset welding of the copper bars and copper end rings of an electric motor cage rotor assembly.

Abstract:The exterior tube structure exerts radial outward forces, and the diagrid columns have significant difference in axial force.Both result in large axial tension forces in ring beams.

［摘要］重力荷载作用下网筒结构外鼓及交叉柱间轴力差异将使环梁受到较大的拉力。