What welding process is commonly used in unitized structural repairs?

MIG welding, or Metal Inert Gas welding, is commonly used in unitized structural repairs due to its efficiency and versatility in working with various types of metals, particularly those used in automotive structures. This welding technique utilizes a continuous wire feed as the electrode and a shielding gas to protect the weld area from contamination. This method allows for good penetration and strong welds, which are essential for maintaining the structural integrity of unitized body frames.

Additionally, MIG welding is favored for its speed and ease of use, which helps technicians efficiently complete repairs while maintaining high-quality results. Its ability to produce clean welds with minimal cleanup and its adaptability to thin, lightweight materials make it particularly well-suited for modern automotive applications, where lightweight materials are increasingly used.

In contrast, while TIG welding provides excellent control and precision, it is often more time-consuming and requires a higher skill level, making it less practical for high-volume vehicle repair environments. Stick welding and arc welding are generally utilized in different applications, such as heavy fabrication or outdoor work, and are not as commonly applied within the context of unitized structural body repairs.