Types of welding joints Explanation 📌 Here’s a 1-minute explanation of the five common types of welding joints: Butt Joint: This is the most basic type where two metal plates are placed in the same plane and joined at their edges. It’s used in pipelines, frames, and structures. Strong and simple but needs proper edge preparation. Lap Joint: One metal piece overlaps the other. It’s great for joining sheets of different thicknesses. Common in sheet metal work, offering good strength, but not idea