Spot Welding Electrode Force. The most common causes are. Electrodes are dressed very frequently when making aerospace quality welds to avoid any contamination of the contact faces.
Weld nugget size requirements Governing Metal Thickness mm Minimum Weld Size Note 1 Weld Size Upper Limit Note 2 DCX Weldability DoE High Value 160 - 189 55 65 73. This paper deals with the effect of electrode force on resistance spot welding process. Where Q heat generated kJ I welding current kA R resistance Ω and t weld time cycles 1 cycles 20 ms for a 50 Hz spot welding machine.
Spot welding parameters include.
During the resistance welding operations if their tensile strength is exceeded they will bend or collapse and fail from the mechanical force being exerted on them. See also What electrode material should I use for resistance spot welding. The level of the electrode force influences the resistivity in the circuit. Weld nugget size requirements Governing Metal Thickness mm Minimum Weld Size Note 1 Weld Size Upper Limit Note 2 DCX Weldability DoE High Value 160 - 189 55 65 73.