Galvanized steel is commonly used for building exteriors, such as glass, marble, and aluminum curtain walls, as columns and load-bearing materials, or in outdoor structures like telecommunication towers and highways. Galvanizing can be divided into electroplating and hot-dip galvanizing.
Cracks, pores, or softened structures are prone to forming within the weld nugget. During the spot welding of galvanized steel, improper welding procedures can leave residual zinc and zinc-iron alloys in the joint. This can lead to fine cracks or pores during the crystallization of the weld nugget. Excessive residual zinc can also lead to softened structures.
There are ways to improve the quality of spot welding of galvanized steel.
