If you want a good effect when using spark machining, you need an auxiliary tool-machine tool. The difference in the processing effect comes from the stability of the EDM machine tool.
If the stability of the machine tool is poor, the current in the machining process will be unstable and affect the machining effect. Maintaining stable processing is the top priority of an enterprise and an important condition for improving production efficiency. How to improve the processing stability of the spark machine?
- First of all, from the processing area, first improve the processing stability of the spark machine, determine the appropriate current density, estimate the appropriate peak current, and select the appropriate pulse duration and pulse interval time.
- Secondly, ensure timely and smooth removal of processed products; prevent short circuits and arc discharge caused by local "bridges", pay attention to the cleanliness of the working fluid, and replace the oil or paper core in time. (Especially machine tools that mix graphite and copper electrodes)
- Finally, if there are some abnormal conditions before arcing occurs in the spark machine, such as whether there are abnormal conditions in the processing sound and color, check whether the display value is normal. If it is found to be unstable, or in the opposite direction, the product carbon is indicated, and if cleaning is performed in time, the electrode and workpiece will not be severely burned. However, if the monitoring is unfavorable, the time is too long. Once the short-circuit is drawn and the arc is short-circuited, the surface can be processed stably. At this time, the current and discharge sparks are dark red, the sound becomes dull, white smoke is emitted, and the graphite electrode will also drop slag. The inspection should be stopped and carefully cleaned.
In the machining process of the spark machine, the above points need to be noted. In the processing of spark machine workpieces, the precision and mirror surface roughness of the workpiece can be ensured, thereby producing high-quality workpieces.
