To avoid tungsten electrode sticking to the workpiece, you can start from the following aspects:
Reasonable Control of Welding Parameters
Maintain proper welding current to avoid excessive current causing the electrode to overheat. Adjust the current according to the material thickness and electrode specifications to ensure a stable arc.
The Correct Way to Start Arcing
Priority is given to high-frequency arcing to avoid direct contact between the electrode and the workpiece. If contact arcing is used, the electrode should be lifted quickly during operation to prevent prolonged contact.
Maintain Protection Gas Flow and Direction
Ensure that the argon gas flow is sufficient and the flow direction is correct, generally maintained at 8~15 liters/minute, forming an effective air shield to prevent oxidation and sticking of the electrode tip.
Reasonably Grind the Electrode Head
Grind the appropriate electrode sharp corner according to the welding type to ensure the arc concentration characteristics and reduce the probability of contact between the electrode and the weld pool.
Avoid Electrode Collision with the Melt Pool
Maintain a reasonable distance between the electrode and the weld pool during operation, and avoid direct contact with the electrode head or the surface of the weldment.
Keep The Electrode Tip Clean
Clean the electrode head regularly to prevent arc instability caused by oxides or impurities, causing sticking.
The Welding Action Is Smooth
Avoid electrode shaking or moving too fast to ensure arc stability and reduce the risk of sticking.
Through the above measures, the probability of tungsten electrode sticking to the workpiece can be effectively reduced, ensuring the smooth welding process and weld quality.
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