GF Machining Solutions/Agie Charmilles wire-cutting, and die-sinking machines have been at the forefront of every EDM development for over 60 years: designing and refining the EDM process and building machine tools that deliver peerless part accuracies, surface finishes, cutting speeds and process reliability. Today, their wire and die-sinking machines are recognized throughout the world as the best in the business. Continuous research and development in digital generator technology, control systems and integrated automation systems are evidence of our commitment to keeping your EDM operations on the leading edge of technology.
Since 1986, Tristate Machinery, Inc. has been the award winning top distributor in Indiana, Illinois, and Wisconsin for GF/Agie Charmilles EDM machine lines.
Electrical Discharge Machining (EDM)
* full definition below
EDM can be used to machine conductive materials of any hardness (for example steel or titanium) to an accuracy of up to one-thousandth of a millimeter with no mechanical action. By virtue of these properties, EDM is one of the key technologies in mold and tool making. There are two distinct processes — wire-cutting EDM and die-sinking EDM:
GF Machining Solutions (Agie Charmilles) Wire EDM >>> More information and Machine Lines
GF Machining Solutions (Agie Charmilles) Die Sink EDM >>> More Information and Machine Lines
* EDM – as defined by Wikipedia:
Electrical discharge machining (EDM), sometimes colloquially also referred to as spark machining, spark eroding, burning, die sinking, wire burning or wire erosion, is a manufacturing process whereby a desired shape is obtained by using electrical discharges (sparks). Material is removed from the workpiece by a series of rapidly recurring current discharges between two electrodes, separated by a dielectric liquid and subject to an electric voltage. One of the electrodes is called the tool-electrode, or simply the “tool” or “electrode”, while the other is called the workpiece-electrode, or “workpiece”. The process depends upon the tool and workpiece not making actual contact.
When the voltage between the two electrodes is increased, the intensity of the electric field in the volume between the electrodes becomes greater than the strength of the dielectric (at least in some places), which breaks down, allowing current to flow between the two electrodes. This phenomenon is the same as the breakdown of a capacitor (condenser) (see also breakdown voltage). As a result, material is removed from both electrodes. Once the current stops (or is stopped, depending on the type of generator), new liquid dielectric is usually conveyed into the inter-electrode volume, enabling the solid particles (debris) to be carried away and the insulating properties of the dielectric to be restored. Adding new liquid dielectric in the inter-electrode volume is commonly referred to as “flushing”. Also, after a current flow, the difference of potential between the electrodes is restored to what it was before the breakdown, so that a new liquid dielectric breakdown can occur.
Tristate Machinery has been the proud exclusive distributor of precision GF Machining Solutions (Agie Charmilles) EDM in Illinois, Indiana, and Wisconsin since 1986. To find out more, or schedule a consultation with one of our sales engineers, call us at (847) 520-4420, or contact us here.