The processing principle of the wire electric discharge cutting method is: the workpiece is clamped on the main shaft, the workpiece is connected to one electrode, and the other electrode is a wire (electrode wire). When processing, the wire is placed at the lower end of the workpiece. Position, and under the control of the micro-feed mechanism, a small amount of radial feed motion is generated, and a discharge spark is generated between the wire and the workpiece. The workpiece can be removed by feeding it vertically. The wire supported by the guide block during the process slides smoothly under the control of the motor, so the discharge is always performed on the new metal surface, ensuring that the loss of the wire does not affect the precision of the machined workpiece.
The straightness and perpendicularity of the machined workpiece obtained by this machining method mainly depend on the feed precision and rotation precision of the main shaft of the electric discharge machine, and the diameter of the final shape of the workpiece is completely predictable. Therefore, it is advantageous to realize automated processing.
In addition, the force generated by the discharge is particularly small, and the vibration and bending of the elongated workpiece can be effectively reduced. The guide block is directly located in the processing area, and the wire vibration is reduced, which is beneficial to improve the quality of the processing.
The requirement of micro-energy pulse power supply is that the electric spark machining relies on the pulse power source to deliver energy to the discharge gap, generating spark discharge and realizing the size processing. Therefore, the quality of the pulse power supply will directly affect the processing parameters of the machining, especially in the micro-machining of the electric spark. Due to the small processing size, the amount of electric discharge per discharge is small, so the minimum single pulse energy that the pulse can provide must be The control is between 10.6 and 10.7 J. In order to improve the processing efficiency, the repetition frequency of the pulse should be controlled at about 1 MHz. Therefore, in the design of the micro-energy pulse power supply, electronic components, electronic circuits and pulse technology with superior performance should be used as much as possible.
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Tube Sheet,Sheet Metal Tube,Fixed Tube Sheet,Double Tube Sheet
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