Wire EDM Cutting

Wire EDM Cutting from A & J Electronics Corp

By: A & J Electronics Corp  06/11/2015
Keywords: Wire, Machine Shop, Precision Machining

A traveling brass wire is energized with a high frequency DC Current to produce a 10,000 degree centigrade spark at rates up to 500,000 cycles per second. As long as the work piece is electrically conductive, the hardest of materials are vaporized. Heat treating tool steel, before making parts out of it, eliminates the slight distortion that typically occurs after making parts. The EDM process allows cutting parts from materials that are already hardened. This is one of many advantages offered by the electrical discharge machining process. Unlike the sinker, (or ram), EDM which is typically used to burn shapes in to work pieces from one side at a time, (blind), the wire EDM process must go through the work piece. The wire is then controlled by the upper, and lower diamond guides, being driven by the CNC section of the machine. On parallel cuts these axes move in unison, but another advantage of the process is that they also function independently. This allows the wire to “lean over” at angles up to 30 degrees, tracing two different geometries through the part (upper, and lower). Its similar to flossing your teeth, except the wire is always a straight line.

Keywords: Custom Machining, Machine Shop, Metal Cutting, Precision Machining, Wire, Wire Edm

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