首页>
外国专利>
Electrode for resistance spot welding of dissimilar metals
Electrode for resistance spot welding of dissimilar metals
展开▼
机译:异种金属电阻点焊电极
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method of spot welding a workpiece stack-up that includes a steel workpiece and an aluminum alloy workpiece involves passing an electrical current through the workpieces and between welding electrodes that are constructed to affect the current density of the electrical current. The welding electrodes, more specifically, are constructed to render the density of the electrical current greater in the steel workpiece than in the aluminum alloy workpiece. This difference in current densities can be accomplished by passing, at least initially, the electrical current between a weld face of the welding electrode in contact with the steel workpiece and a perimeter region of a weld face of the welding electrode in contact with the aluminum alloy workpiece.
展开▼