Welding Art: TIG Welding

TIG Welding is a method of welding. Pipes are directly welded to pipes. It is also called fish scale welding. Also known as non-molten inert gas tungsten pole shielded welding. Welding Art: TIG Welding

TIG welding itself belongs to open arc operation. It can observe the shape and flow of molten pool very well, which is much superior to electrode arc welding.

Welding skill 2. Control of hand stability during welding is the key to avoid shivering and burning the dock pole causing tungsten inclusion in the molten pool. The control method can support the welded pipe or plate with the index finger of the welding torch. Tungsten pole extension length can be selected according to the depth of the break, generally 3-5 mm.

The wire feeding method can be selected according to the size of the break. When the angle of the break is small, the welding wire can be placed in the middle of the dissolving pool and fed continuously. When the break is large, two side points can be used to feed the wire (to be quite skilled, avoid touching the dock pole). The welding torch moves left and right to make the edge fuse well.

As for the full scale pattern on the surface, according to the scoring standard of the test competition, the residual height of TIG weld is generally 0~2MM, and the surface is smooth without undercut. Pore, crack and non-fusion can be achieved.