Electrode manipulation is a key factor in controlling the weld bead formation in welding. Here are seven characteristics of the weld bead formation that can be controlled by electrode manipulation:
1 Width of the weld bead: The width of the weld bead is directly affected by the angle and the speed at which the electrode is moved.
2 Penetration depth: Penetration depth is the depth to which the weld penetrates the base material. The penetration depth is affected by the angle and the speed of the electrode, as well as the amount of heat input.
3 Height of the weld bead: The height of the weld bead is directly affected by the size and shape of the electrode used.
4 Bead profile: Bead profile is the shape of the weld bead. It can be manipulated by changing the speed, angle, and direction of the electrode.
5 Weld reinforcement: Weld reinforcement is the extra metal added to the weld bead, which provides additional strength. It is affected by the angle, speed, and direction of the electrode.
6 Porosity: Porosity is the presence of gas pockets in the weld bead, which can weaken the weld. It can be controlled by manipulating the electrode to ensure proper gas shielding and avoiding excessive heat input.
7 Cracking: Cracking can occur in the weld bead due to excessive heat input or improper electrode manipulation. It can be prevented by using proper welding techniques and adjusting the electrode speed, angle, and direction.