The ways of metal cutting can be divided into several groups. There are plasma cutting, mechanical cutting (chamfering, drilling, milling, grinding, et cetera), hydro-abrasive, laser and gas cutting.
Plasma cutting is performed by means of the mix of gasses moving under high pressure. Therefore, there is a partial burning out, melting and complete blowing of particles of metal in the place of a section. This method is applicable to any kinds of metal. It is one of the most economic and productive methods (by 4 times quicker than laser cutting, by 8 times – hydro-abrasive and in 10 – mechanical). Another benefit of plasma cutting is that in case of plasma cutting losses of metal are minimal. Moreover, there is almost no negative impact on the environment. Plasma cutting can be applied to any metal from 1 to 150 mm thick. The received details have equal and smooth edges and do not require the subsequent handling. The method is applicable both for single and for serial production. You can find the reviews of the best available plasma cutters at cutslikebutter.com.
Laser cutting of metal happens on special machines under the intensive impact of a laser beam that evaporates a part of metal. The melted metal, which has remained in the place of a section, is blown by a stream of gas mix. By means of the laser, cutting it is possible to receive details of high precision and any configuration.
Mechanical cutting can be performed by means of the grinder, a guillotine or a stationary circular saw. An essential lack of mechanical cutting is that with its help it is possible to make only rectilinear cuts. Its advantages are high precision and smooth edges of a section.
Hydro-abrasive cutting is one of the innovative methods that allow making cutting of metal up to 30 cm thick. When using this method the subsequent handling of edges of a section is not required. Cutting is made on the special equipment by means of water mix with abrasive sand that is pumped under high pressure through a narrow nozzle. Lack of thermal impact on metal belongs to benefits of a method that prevents its deformation. To shortcomings – the high cost and inapplicability for the corrosive metals.
Gas cutting is made by means of the special equipment by an intensive melting of metal that performs under the influence of a directed flow of gas-oxygen mix. This method is suitable for cutting off the metals and alloys having small heat conductivity.