Spooling process tapes, instead of wear-and-tear on the electrode. This is what characterises this radically new system of robot welding tongs for resistance spot-welding. The process tapes of the DeltaSpot resistance spotwelding method protect the electrodes and the materials to be joined, prevent spatter, and generally lay down new quality standards.
The process stands out for its 100 % reproducible weldspots. The process window is significantly wider than in conventional resistance spot-welding. DeltaSpot spot-welds steel and galvanised steel sheets with complete processreliability. It also makes light work of bimetal joins between galvanised steel sheets and aluminium, and even of aluminium-to-aluminium ones.
This is made possible by the extra thermal input through the process tape. After every weld-spot, the process tape moves on to its next position, so that it always welds a new contact surface every time. Endless spot-welding with consistently high quality, one shift after another, is now a reality.
Each weld-spot leaves behind a “fingerprint” on the process tape. This enables inferences to be made with regard to its quality, greatly facilitating quality management and documentation.