Welding current and current density comparison between manual arc welding and automatic buried arc welding
Arc welding is undoubtedly a commonly used welding process in the current welding industry. With the development of welding field, there are more and more kinds of arc welding techniques, such as manual arc welding and automatic buried arc welding. The two welding techniques have their own characteristics, but the welding currents and current densities they use are quite different. This article will discuss the comparison between manual arc welding and automatic buried arc welding in terms of welding current and current density.
Manual arc welding is a popular welding process in the welding industry due to its high production efficiency, low cost, and widespread use of materials. The welding stick rod is used as the electrode to establish a welding current. The welding current is usually adjusted within the range of 100~250 Amir and the welding current density is usually around 100~200A/cm2. The welding process of manual arc welding is relatively simple and easy to master, which makes it widely used in various welding processes.
On the other hand, automatic buried arc welding uses welding machines, such as submerged arc welding machines, for welding. The welding machine is composed of various parts, such as power supply, welding arc, welding cable, etc. The power supply of welding glutton is usually between 400-600 Amps. And the current density range of this welding process is usually 200A-400A /cm2. Unlike manual arc welding, which requires welding operators to control some welding parameters, automatic buried arc welding requires welding machine parameters to control the welding process and parameters.
To sum up, there are many differences between manual arc welding and automatic buried arc welding in terms of welding current and current density. Generally speaking, the welding current of manual arc welding is within the range of 100~250 Amir and the current density is usually around 100~200A/cm2. Whereas for automatic buried arc welding, the power supply is usually between 400-600 Amps and the current density range is usually 200A-400A /cm2. Different welding processes usually have different welding requirements, so it is important to choose the right welding process and welding parameters according to the actual requirements.
