Which groove type is simplest to prepare?

The square groove is the simplest type of groove to prepare because it requires minimal preparation. This groove involves making a simple cut with the edges of the pieces being aligned perpendicular to one another, creating a square channel for the welding process. There is no need for angular cuts or complex shaping, which makes the preparation straightforward and easily achievable with basic cutting tools.

Other groove types, such as V-grooves and bevel grooves, require more intricate shaping to create angles that promote effective weld penetration and strength. U-grooves, while also effective for certain applications, involve more detailed preparation as they need to be formed into a curved shape. The simplicity of the square groove lends itself well to processes where speed and efficiency are prioritized, especially in environments where ease of fabrication is key.