Tandem welding system
- August 6, 2019
Fronius has introduced its tandem welding process on the TPS/i welding platform.
The TPS/i TWIN Push high performance welding system is more compact and network-capable, and integrates enhancements to the welding process. The processor power of the TPS/i improves the synchronized TWIN Push tandem process, making it more stable and reliable, and the enhanced gap-bridging ability saves time at the component preparation stage.
Rework can also be reduced, since precise control of the welding process enables controlled droplet detachment and low heat input into the component, permitting low-spatter results with minimal distortion.
Fronius is offering new process and control options with the TPS/i TWIN Push: PMC (Pulse Multi Control) TWIN features a short, focused pulsed arc that improves penetration and yields higher welding speed. The PulseSync option allows the user to select varying travel speeds for the two wire electrodes. This delivers greater flexibility to adjust the welding parameters to the component and achieve higher speeds. The power source will automatically correct all relevant power source parameters, such as the ignition properties, the point of droplet detachment and the pulse ratio.
The TWIN process is based on tandem welding and features two wire electrodes that are fed into a welding torch with a single gas nozzle but that remain electrically isolated from one another. As a result, the arcs can be controlled independently and, despite differing outputs, can be synchronized and coordinated.
In addition to two TPS/i power sources, the TWIN Push system requires a TWIN Controller. The controller synchronizes the welding process and acts as an interface that is compatible with all robot makes. The compact wirefeeder, cooling system, hosepack, and TWIN welding torch complete the welding system.
The cooling system for the torch has been improved, extending the service life of wearing parts. Fronius has also developed the Robacta TSS/i TorchServiceStation. This torch cleaning system combines a number of cleaning methods, including high pressure cleaning, brush cleaning and magnetic cleaning as well as cleaning by means of a cutter. The professional torch cleaning device lowers the overall system costs by extending the service life of wearing parts.
The TX TWIN welding torch change station console allows for automatic switching between TWIN and Single torch bodies. This means the same system can be used to weld areas that are particularly difficult to access with the more compact Single torch body. The robot automatically changes the torch body – allowing for unmanned shifts.