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The welding process with PUK fine welding devices takes place largely automatically, enabling very simple and reproducible execution of the welding process.
Once the operator has implemented the basic settings on the welding device for the metal type and welding situation, it is possible to start welding.
The welding process is started by lightly touching the workpiece with the electrode tip. The welding process itself takes place automatically and requires no further operator intervention.
- As soon as the electrode tip touches the welding point, a gas valve opens in the control unit and shielding gas flows out of the hand piece nozzle.
- Immediately afterwards, the electrical pulse (arc) strikes automatically and the electrode partly withdraws into the hand piece.
- With this, the electrical pulse (arc) is drawn back from the contact point, remains active for a preselected time and therefore generates a welding point of the desired intensity.
- Once welding is complete, the flow of protective gas stops automatically.
The process can be interrupted at any time by interrupting the contact between the electrode tip and the workpiece. This prevents uncontrolled welding.
Working with individual welding pulses (no continuous arc) and a pre-adjusted time interval between these pulses prevents an overheating of the workpiece and results in precise and low-warpage work.