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Plasma cutting technology, CNC plasma machines and additional equipment

Now more and more manufacturers and construction companies are establishing plasma cutting facilities. The plasma cutting allows cutting the metal sheets faster and better, and facilitating the operational process.


Let’s compare 2 ways of cutting metal: cutting wheel and thermal cutting. The latter has higher speed and quality of the finished surface, especially in case of hard alloy metals.


When you cut hard material, the hardness of cutting wheel and the material is just slightly different that leads to short life of the cutting wheel. In case of the plasma cutting, the hardness of the material is irrelevant parameter. Gas-plasma cutting can be applicable for any metal alloys, including non-ferrous metals. In this case, for different materials, only electrodes and nozzles need to be changed.


Сибирь АRМ 2000х6000 Сибирь АRМ 2000х6000


Plasma cutting technology


The plasma machine creates an arc that melts the metal by high temperature and blows out the liquid metal by the plasma stream. There are two schemes for creating a plasma, the first of which is to use the tip of the nozzle as an electrode. The processed material is not included in the system. As a result, an independent plasma flow cuts the workpiece.


The second scheme involves the inclusion of the workpiece in the system. Thus, the plasma arc gets ignited between the electrode and the metal. Cutting of metal is performed by an electric arc and plasma..


This scheme is more efficient in terms of energy use and usually applied for cutting the metal alloys that conduct an electric current. Plasma cutting with independent arc is used to a limited extent.


Cnc plasma cutting machines


Every plasma cutting machine consists of the following elements:


−       power source;


−       compressor;


−       torch;


−       clamp.


Small plasma cutting machines have combined compressor and plasma source. That is convenient in case of using it on remote construction site, as it allows doing a job with limited equipment set. On the other hand, the capacity of this equipment is limited, that is why they are used for cutting metal of small thickness.


In case of the handheld equipment, the operator manually moves the torch along the workpiece. That’s inefficient for the industrial use. The CNC plasma cutting have operational table and mechanism for moving the torch.


Gantry plasma cutting machines


The gantry plasma cutting machines provide high accuracy and high cut quality. The accuracy is provided by a rigid structure that allows the torch to move with minimal deviation from the specified path. Only laser machines provide the accurate cutting but they are much more expensive.


Gantry plasma cutting machine cut the metal with high speed. It is extremely convenient that the machine performs the same type of work automatically. That significantly increases productivity in case of large-scale production.


Яндекс.Метрика ; Яндекс.Метрика