| Popis: |
The cutting process with the additional current flowing via contact zone is a technology allowing to increase of machinable possibilities, especially according to the hard-machinable materials. It is possible to involve the additional parameter, the electric current I [A] to the independent variables, aside of the parameters characteristic to the conventional process: cutting speed v [m/s], feed p [mm/2лrd], width of cut g [mm]. In this way, there is the possibility to input the heat limit to the contact zone necessary to realise the cutting process, which is seldom able to achieve by means of the increase of the cutting speed v. The heat amount Q, which is emitted in this process is described by the equation: $$ Q\; = \;P\; \cdot \;v\; + \;{I^2}\; \cdot \;R\;[W] $$ where |
