What is the thread cutting for?

WEDM, also known as low-speed wire-walking, is a kind of NC machining machine tool that uses continuous moving filaments as electrodes to pulse spark discharge the workpiece to generate high temperature above 6000 degrees, remove metal and cut it into workpieces.

Features:

WEDM adopts the way of continuous wire feeding, that is, the wire is processed in the process of movement, even if the wire is worn, it can be replenished continuously, so the machining accuracy of parts can be improved.

Extended data

Working principle:

Photovoltage discharge phenomenon of poor contact between online electrode and workpiece in WEDM. When the flexible electrode wire and the workpiece are close to the commonly thought discharge gap, spark discharge does not occur, and normal spark discharge occurs only when the workpiece bends the electrode wire and deviates from a certain distance. At this time, when the electrode wire is fed at 65,438+0 microns, the discharge gap does not decrease by 65,438+0 microns, but the tension of the electrode wire increases a little, and the lateral pressure of the workpiece increases a little. Spark discharge can only be formed when a certain slight contact pressure is maintained between the wire electrode and the workpiece.

Baidu encyclopedia-wire cutting