Focusing and Deflecting Systems Modelling and Simulation of the Electron Beam Equipment CTW 560

Electron beam material processing is an important nonconventional technique used in many industrial fields where the conventional methods proved to be inefficient. The entire process has many time varying parameters, but some of the most important for the quality of the material processing are given by the directing part of the equipment which contains the focusing and deflecting systems. These systems modify the beam diameter, focus distance and beam penetrations in the material. One of the first stages for the control system design is the modelling and simulation of the process, in this case the focusing and deflecting systems. The study and simulations results help the engineers to know the process characteristics and what type of control is needed. After simplifying, the resulted focusing model is nonlinear and the deflecting model is considered linear on small angles. The simulations shown in the paper are obtained using Matlab environment.