The major classifications of welding machines are __.
multiple core, inversion, transformer
multiple inversion, transformer core, and step-down
multiple coil, movable coil, movable core, and inverter
magnetic core, movable coil, and transformer
The correct answer and explanation is :
Correct Answer:
The major classifications of welding machines are:
✅ Multiple coil, movable coil, movable core, and inverter.
Explanation:
Welding machines are classified based on their construction and the principle they use to control the welding current and voltage. These classifications determine their efficiency, application, and suitability for different welding processes.
1. Multiple Coil Welding Machines
These welding machines use multiple coils to regulate voltage and current. The presence of multiple coils ensures better control of welding parameters, leading to stable and efficient welding operations. This type is commonly found in transformer-based welding machines.
2. Movable Coil Welding Machines
In this type, the welding machine has a coil that moves within a fixed magnetic field. By adjusting the position of the coil, the welding current can be regulated. This design allows for smooth adjustments in the welding arc, making it useful for various welding processes.
3. Movable Core Welding Machines
Instead of moving the coil, these machines feature a movable iron core inside the transformer. Adjusting the core’s position changes the inductance, which in turn modifies the welding current. This mechanism is particularly useful in resistance welding and some arc welding applications.
4. Inverter Welding Machines
Inverter welding machines use advanced electronic circuits to convert AC power into a high-frequency DC output. They are lightweight, energy-efficient, and provide precise control over the welding arc. These machines are widely used in industries due to their portability and high performance.
Each classification serves a specific purpose, and the choice of welding machine depends on factors like power requirement, portability, and the type of welding to be performed.
