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How does the electrode problem of the spark machine occur?

The spark machine will have a small loss during normal operation, but this is a normal phenomenon, because the spark machine is discharged by electrodes, and the general loss is about 0.1%. Excessive excess is an abnormal state. What caused the abnormal electrode wear of the spark machine? 

What are the preventive measures?

  • 1. Improper selection of discharge conditions;
  • 2. Oil flushing is the main method to eliminate electric corrosion during EDM. Poor oil washing conditions will have a certain impact on EDM;
  • 3. Periodic tool lift ratio can increase chip power and pulse stop time, and improve chip conditions.

Short circuit in electrical discharge machining

In ordinary EDM, there is a discharge gap between the workpiece and the electrode. If there is a secondary discharge, energy will be consumed in the remelting of corrosion products. This will reduce the processing speed and burn the processed surface.

The arc of electrical discharge machining

Please select the EDM processing conditions reasonably to prevent secondary discharge and arc starting.

When encountering some larger materials, try to increase the number of times of lifting the knife to prevent.

From time to time and the manufacturing industry, the development of the application field, the appearance of the molding line and its manufacturing of deep holes, and its manufacturing level from time to time, the time spark machine metal mold has also improved.

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