The cutting speed of taper machining of wire-cutting CNC machine tools has great relationship with the working fluid dielectric coefficient, washing property and fluidity. It can be said that the quality of working fluid will directly affect the machining efficiency when taper machining. Therefore, when cutting a taper workpiece, the wire cutting machine should keep the working fluid clean by filtering the working fluid or circulating the working fluid.
In addition, the working fluid must be replaced after two to three months of use. In the case of processing a large thickness taper workpiece or pursuing a cutting speed, a working liquid ratio of about 5% to 8% of a lighter concentration can be selected to improve the processing efficiency on the basis of ensuring easy chip removal and stable processing. In order to improve chip evacuation, the distance between the upper nozzle and the upper surface of the workpiece should be minimized.
To improve processing efficiency, reasonable selection of workpiece materials is also an important factor. Therefore, under the premise that the processing parameters are selected correctly and the working fluid is normal, the material of the workpiece should be correctly selected. Try to choose those processing materials that have good forging properties, good hardenability, and small heat treatment deformation. In addition, the selection of the electrode wire of the corresponding diameter for the thickness of the workpiece is also advantageous for chip removal and processing stability, thereby improving the processing efficiency.
If the feed rate is too fast or too slow, it will also affect the taper processing efficiency. If the feed rate is too fast, it may cause a short circuit, and in severe cases, it may be broken due to a short circuit. Conversely, the feed rate is too slow, far behind the workpiece erosion rate, and will also reduce the processing efficiency.
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