Nifex LTD, Hungary, Vac, Laser, Plasma, Flame, Cut, Metal

The technology of plasma cutting, its operation and using

Plasma cutting is belonging to the family of thermical cuts.

According to it’s nature it is a bulk cut.

This means the material melt in the cutting gap in its full thickness, and the high speed and temperature blast blows away the generated melt.

The plasma arc means the current is being led by the flowing out ionized gas between the negative electrode and the material attached to the positive pole; this is what we call plasma arc.

The concentrated plasma melts the material (around 20000 Celsius degrees) in the cutting cap and the blast flow it out. Differently from flame cutting, here are no chemical reactions; plasma cutting is available perfectly in case of various materials. We distinguish two types of plasma cutting technology, internal and external arc technology. In case of external arc plasma cutting the anode fills the role of the material, but  it has a disadvantage: only metallic materials can be used, but the speed of the cutting and the cutting material’s thickness is substantially bigger.

According to flame cutting, it’s cutting speed is much faster, but the cutting range is smaller, so it cannot be replaced in every case.