1. Welding current
As the current increases, the heat input and arc force increase, the heat source position moves downward, and the penetration depth increases. The welding current is proportional to the penetration depth. As the current increases, the melting amount of the welding wire increases. Since the melting width remains unchanged, the remaining height Increase accordingly.
2. Arc voltage
As the arc voltage increases, the arc power, heat input and distribution radius increase, the penetration depth decreases, the penetration width increases, and the residual height decreases.
3. Welding speed
When the welding speed increases, the energy, penetration width and penetration depth decrease, and the residual height decreases. The amount of wire metal deposition is inversely proportional to the welding speed.
The welding current affects the penetration depth. If the current is too large, defects such as undercut and burn-through will occur. If the current is too small, the arc will be unstable and the penetration depth will be small, resulting in defects such as incomplete penetration.
The welding speed is directly related to the welding productivity. On the premise of ensuring quality, using a larger electrode diameter and welding current can achieve the maximum welding speed. At the same time, the welding speed must be adjusted according to the specific situation to ensure that the weld height and width are consistent. sex.