The type of joint is determined by the relative position of the two pieces to be joined.
The basic types of welding joints are:
Lap joint – Plates are placed in an overlapped position and edges of the plates are weld.
Butt joint – Plates are placed edge to edge. Butt joint can be V-shape, U-shape or J-shape.
T-joint – Join the plates in such a way that their surfaces are at right angle.
Edge joint – Plates are joined in such a way that their surfaces are parallel.
Corner joint – Join the edges of plates in such a way that their surfaces are at right angle.