MICRO-STEPPING COMMAND OF HYBRID STEPPER MOTORS USED FOR ELECTRODE TOOL DISPLACEMENT OF SINKING EDM-MACHINES
In the first part of this article, the authors make a short presentation of electrode tool displacement control system for sinker electrical discharge machining.The advantages of stepper motor Horse First-Aid used in kinematics chain are also mentioned.In the second part, the authors compare the principal type of current control trough the coils of