Projection Welding Thickness. Projection welding is a suitable process for a number of metals including low carbon steel stainless steel and aluminum. Consequently the electrode size contact area can be much bigger than the projection size resulting in reduced contact pressure and current density at the electrodepart interface.
Spot and Projection Welding - Artech Welders Private Limited took roots in 1994 with the dream of manufacturing Capacitor Discharge CD projection welding machines. Projections come in many sizes and shapes including full rings. In case high thickness of work metal welded by using spherical type projection.
Some PW does not require a specific projection design as with cross-wire weldingmerely place the two wires in contact at 90 deg.
This method can extend electrode lifespan by. PROJECTION SIZE SHAPE CONSISTENCY. The strength of welding joint depends on the nature of projection. Some projection welding does not require a design as in cross wire welding.