Plasma cutters or torches are the most indispensable tools used in metal fabrication industry. It facilitates easy cutting of metals with high efficiency and accuracy. It utilizes high temperature to cut the metals with precision and accuracy. It was first developed during the II World War. With the development in science and technology, there has been considerable improvement in the features of this efficient tool.
The plasma cutter functions differently as it uses plasma gas to cut the metals. The cutter includes a narrow opening through which a gas, which can be oxygen, air or nitrogen, is forced out. The fuel is heated in a very high temperature to form plasma and it is used to cut the metals efficiently. Another gas acts as a shield and protects the metals from the cut.
In addition to this metal cutting device, other cutting tools include lasers and high definition plasma. However laser cutters are more expensive but it is quite slow in performance. Nevertheless, laser cutters are considered to be most accurate as it can easily obtain high precision cuts.
These metal cutting devices are used for a wide variety of purposes in various fields. It is used in auto industries to cut out shapes and parts of automobiles. It is also used in heavy industries to cut through large sheets of metals. Plasma cutter is nowadays used in CNC machines to obtain high precision cuts. With the use of CNC machines, workers can now arrange the shapes with the use of computers and the metals are cut automatically by the cutting devices.
It is also widely used by artisans to cut metals as detailed and fine cuts can be made easily on the metals with the use of small portable cutters.
One of the greatest advantages of using these cutters is its incomparable precision and accuracy. It is therefore widely used in most of the metal fabrication industries all over the world.
Another important advantage of using these cutting devices is that the surface of the metals remains cool after the cutting process. This helps to prevent paint damage or warping, often seen in other metal cutters.
It is also five times faster than the other conventional metal cutting torches. It seldom uses highly flammable gases for its cutting purposes. These metal cutting devices can cut through metals easily and quickly.
Although it is ingrained with many advantageous features, it is not devoid of drawbacks. The cost of operation and maintenance is quite large compared to the other types of metal cutting devices. The nozzle and the electrode of the cutter require frequent replacements. Moreover, it cannot be used to cut plastic or wood as it is non-conductive.
Another major drawback is that most of these cutters leave a bevel on the edge of the metal. It is unnoticeable on thinner metals but it is quite visible on thicker metal pieces. Nevertheless, plasma cutters are widely used in most of the industries as it is quick, precise and efficient.