A Closer Look At Plasma Cutters
By using a plasma torch, plasma cutters can cut metals. The creation of a plasma will enable a plasma cutter to work. Having a liquid and gas composition, you can create a plasma which is superheated.
The combination of compressed inert gasses and electricity are commonly used by plasma cutters. Using the metal that is being cut, a plasma cutter creates an electric circuit in order to cut the metal. Touching the end of the nozzle with the metal will then create an electrical circuit. By using the negative electrode, the electrical sparks and the fast flowing inert gasses will meet. The combination of the gas and the electricity will heat up that gas to up to 15,000 degrees Celsius and will then transform to a plasma. The plasma will then go out of the nozzle which will directly hit the metal that you are cutting. The small exit on the tip of the nozzle is the very reason the plasma speeds up its exit. Just like a laser, the plasma cuts perfectly because of its speed, temperature and focus.
There will always be a perfect cut as long as everything is set up correctly. The cutting ability of plasma cutters is more versatile just as long as the material also conducts electricity. Copper, stainless steel, and aluminum is just some of the materials that a plasma cutter can deal with.
A High-Frequency Contact is one of the main types of a plasma cutter. CNC operations are not capable of this kind of plasma cutter that is why it is called a low budget gear. High frequency and high voltage sparks are used in order to create a plasma. In order for it to create a plasma, the tip f the torch should touch the metal.
Another type of plasma cutter is the pilot arc and it produces plasma in two cycles. It is during the World War II that the first plasma cutters were invented. The high frequency and high voltage circuits are the once used to cut metals. There is a very high risk of electrocution if the operator is not careful. The repair and maintenance of the old plasma cutter are very hard.
Different thickness of metals is no problem for a plasma cutter. Depending on the size of the machine is also the size of the sever cut. The sever cut is the thickness of the metal the plasma cutter can handle. The thickness of the metal is what determines the easiness of the job will be for a CNC plasma cutter. But the thicker the sever cut, the messier the cut will be. Cleaning out the edges will be a must once the cut is done. Because it is computer controlled the cut of a CNC plasma cutter is more precise. When you have projects that are repetitive you better have a CNC plasma cutter.