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A Closer Look At Plasma Cutters
Plasma cuter work by cutting metal using a plasma torch. You have to create a plasma in order for a plasma cutter to work. The composition of the plasma is a combination of gas and liquid which is superheated.
The combination of compressed inert gasses and electricity are commonly used by plasma cutters. The electric circuit that is being made with the metal material, plasma cutters are able to cut through it. Touching the end of the nozzle with the metal will then create an electrical circuit. The sparks will then travel through the negative electrode which will then meet with the fast flowing inert gasses. 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 very reason for the fast exit of plasma on the tip of the nozzle is due to its tiny exit. The reason for the accuracy of the plasma just like a laser is because of the speed, temperature, and it is focus.
There will always be a perfect cut as long as everything is set up correctly. As long as the materials conduct electricity, the plasma cutter can cut it. These materials can be copper, stainless steel, aluminum and etc.
A High-Frequency Contact is one of the main types of a plasma cutter. It is called a low budget equipment because it does not work with CNC operation. Using a combination of high frequency and high voltage, these type can then create a plasma. In order for it to create a plasma, the tip f the torch should touch the metal.
The pilot arc type of plasma cutter is the one that produces two cycles of plasma. 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. It the size of the machines that determines 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. It will have a messier cut if the sever cut is higher. The edges must be cleaned once the cut is done. CNC plasma cutter are the once that are computer controlled that is why the cuts are more precise. A CNC cutter is very important if you have projects that are repetitive.