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Nullam dignissim, ante scelerisque the is euismod fermentum odio sem semper the is erat, a feugiat leo urna eget eros. Duis Aenean a imperdiet risus.
Welding is a complex craft that requires patience, an eye for detail and creativity. To perform it successfully, welders should have an understandable knowledge of the various methods and practices used in the industry which includes weld types and joints.
Any discussion on weld types starts with the idea that it is important to distinguish between the joint and the weld.
According to the American Welding Society (AWS), a joint can be defined as, “The manner in which materials fit together.” The applications of welding are endless, and different jobs require different types of welds and joints.
What Is Welding Joint?
A welding joint is a point or edge where two or more pieces of metal or plastic are joined together. They are formed by welding two or more workpieces according to a particular geometry.
Types Of Welding Joint:
According to AWS, there are five basic welding joint types that are commonly used in the industry:
Butt Joint Welding:
A butt joint is one of the simplest and most versatile types of welded joints. The joint is made simply by placing two pieces of metal together and then welding them along the join. It’s simple to prepare, and there are many different variations that can be applied to achieve the desired result.
These variations include such as angles, the width of the gap, groove shape, root, and weld size. Following are some typical examples of butt weld joints that are included in welding.
Tee Joint Welding
Tee welding joints are formed when two pieces intersect at a 90° angle. This results in the edges coming together in the center of a plate or component in a ‘T’ shape. Tee joints are considered to be a type of fillet weld, and they can also be formed when a tube or pipe is welded onto a base plate.
Corner Joint Welding
Corner joints have similarities to tee welding joints. However, the difference is the location of where the metal is positioned. In the tee joint, it’s placed in the middle, whereas corner joints meet in the ‘corner’ in either an open or closed manner—forming an ‘L’ shape.
Lap Joint Welding
Lap welding joints are essentially a modified version of the butt joint. They are formed when two pieces of metal are placed in an overlapping pattern on top of each other. They are most commonly used to joint two pieces with differing thicknesses together. Welds can be made on one or both sides.
Edge Joint Welding
Edge welding Joints are often applied to sheet metal parts that have flanging edges or are placed at a location where a weld must be made to attach to adjacent pieces. Being a groove type weld, Edge Joints, the pieces are set side by side and welded on the same edge.
In an edge joint, the metal surfaces are placed together so that the edges are even. One or both plates may be formed by bending them at an angle. The purpose of a weld joint is to join parts together so that the stresses are distributed. The forces causing stresses in welded joints are tensile, compression, bending, torsion, and shear.
Advantage of Welding Joints:-
Disadvantage of Welding Joints:-
