Prerequisites for precision EDM

When using a machine tool for processing, the machining accuracy cannot exceed that of the machine tool. For EDM machining of high value-added mold parts, general discharge machine tools are difficult to complete. Selecting a good discharge machine tool is the basic requirement for processing. Precision EDM machine tools should meet the high-precision requirements in terms of the mechanical properties of the structure, and the various geometrical accuracy of the spindle and the table. It requires the use of a fully closed-loop control method of the scale. The discharge machining performance of the machine tool is particularly important. If the size is fine and the contour is clear, the discharge gap is required to be small, and stable machining can be achieved under the condition of small gap machining.
The chip lifting technology should ensure reliable chip removal. Machine tools using high-speed tool lifting technology can effectively discharge machining waste and tar, and obtain a stable discharge gap. The high-performance servo control system can control the processing depth error within Minimize precision machining. Rich shaking methods in finishing are used to accurately compensate the size of the profile contour. In the finishing process, the electrode loss is extremely small, and the finishing circuit meets the requirements of mirror processing, which can process high-quality surfaces. High degree of automation and outstanding intelligence greatly reduce the dependence of machining accuracy on human.