What is the purpose of using water jets in resistance seam welding?

Using water jets in resistance seam welding primarily serves to cool the workpiece as it exits the rollers. The welding process generates significant heat, which can lead to distortion or damage if not managed properly. By applying water jets, the temperature of the welded area can be rapidly reduced, allowing for a more stable structure and minimizing the risk of warping or other thermal issues.

This cooling action is crucial in maintaining the integrity of the weld and ensuring that the material properties of the workpiece are preserved. This is particularly important in high-speed welding applications where heat buildup can be substantial.

While enhancing weld penetration and removing impurities are important aspects of welding processes, they are not the primary functions of water jets in this specific context. Similarly, speeding up the welding process is not the main purpose of water jets, as the focus is more on maintaining quality and stability through effective cooling.