The greatest effect of the electrode grinding electrode surface by polishing, cleaning alloy layer deposited on the electrode surface of the galvanized steel welding process, restore the shape of the electrode surface, thereby extending electrode life. This is the most effective and the most convenient electrode management solutions. The resistance welding Brazing Alloy quality and economic benefits depends on whether the electrode life can be extended.
Grinding time and effort
The long and workload torque grinding units, grinding unit speed (rev / min) and the cutting blade to decide. End grinding work environment depends on the plate thickness, number of welds, the current cycle and the electrode material. Regrinding the optimum conditions of the end portion will have to be adjusted according to the worst case of the bulk alloy layer. Some car manufacturers is grinding cycle of each cycle (about welding 25) of the electrode grinding. If using this method, due to the few number of welds, the alloy layer stacked much, the vendor each time need only the electrode grinding 0.3 to 0.5s.
This grinding method can not only maintain the high quality of the welding, but also to extend the life of the electrode and blades. Due to the short time of grinding, using this method for each ground off of the accumulation layer is only hundredths of a millimeter. Periodic grinding and completely repair (increasing current) two cases are compared, bound to pay attention to the first welding and last welded difference.
If Welding Electrode grinding first welding in good condition, but the quality has declined markedly after welding 400, and will continue to deteriorate. If the electrode grinding periodic repair, the first time the quality of the welds and 400 welding quality is almost the same. Electrode surface to maintain the initial shape and cleanliness, welding quality can always be maintained. Without the use of a large transformer, saving time and costs.