What specific type of welding process is typically preferred for on-site tower modifications, and why?

The Shielded Metal Arc Welding (SMAW), also known as stick welding, process is often preferred for on-site tower modifications due to its versatility, portability, and relative simplicity. SMAW equipment is relatively lightweight and easily transported to the tower site, and it can be used in a variety of positions, making it suitable for welding in confined spaces or at heights. While other welding processes may offer higher weld quality or faster welding speeds, SMAW is often chosen because it is less sensitive to wind and weather conditions, which can be a significant factor during on-site tower work. Furthermore, SMAW requires less specialized equipment and training compared to processes like Gas Metal Arc Welding (GMAW) or Gas Tungsten Arc Welding (GTAW), making it a more practical option for many tower modification projects. However, proper welding procedures and qualified welders are still essential to ensure the integrity of the welds.