What is a common application for edge joints in welding?

Joining flat sheet metal edges is indeed a common application for edge joints in welding. This type of joint allows for the seamless connection of two flat plates or sheets along their edges, which is essential in many manufacturing processes, such as in the fabrication of containers, panels, and structural components.

In edge joints, the two pieces are aligned adjacent to each other, making it ideal for situations where a smooth and continuous edge is required. This application is particularly beneficial when the goal is to maintain a uniform thickness and appearance, as well as to ensure structural integrity along the joined edge.

Other choices, while relevant in different contexts, do not specifically address the use of edge joints. Connecting two vertical pieces tends to be more suited for corner joints or butt joints that accommodate perpendicular arrangements. Creating a frame typically involves a variety of joint designs, such as corner or tee joints, rather than edge joints, which focus mainly on flat connections. Joining pipes is more appropriately handled with socket, butt, or fillet joints, which accommodate cylindrical shapes and their specific requirements. Hence, the focus on flat sheet metal edges distinctly characterizes the function of edge joints in welding practices.