Welding method:
Spot welding robots form welding points by applying pressure and instantaneous high current between the welded parts.
Arc welding robots use continuous electric arcs to generate high-temperature molten metal, forming continuous welds.
Applicable materials:
Spot welding is suitable for thin sheet metals, such as steel plates on car bodies.
Arc welding can be used for thicker metal materials, such as large steel structural components.
Weld seam characteristics:
Spot welding forms discrete welding points.
Arc welding produces a continuous weld seam.
For example, in automobile manufacturing, spot welding robots are commonly used to connect thin plates of the vehicle body, such as the connection between car doors and body frames;
When building bridges, arc welding robots are used to weld thick steel structural components such as beams to form strong continuous welds.