Argon arc welding, also known as argon gas welding. That is, around the arc welding through the argon arc protection gas, the air outside the welding area, to prevent the oxidation of the welding area. TIG welding is divided into two types according to the electrode, they are melting argon arc welding and non-melting argon arc welding.
In the argon arc welding, due to the thickness of the weldment, the structure and use of different parts of the joint form and groove form is not the same, there are many forms of welded joints, the main basic form can be divided into docking joints, T-joints, corner joints, lap joints. Sometimes there are other types of joints, such as cross connector, terminating connector, diagonal butt joint, lock bottom butt joint.