SP1U-C0

SP 1U SP 3U

User Manual C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11

Safety Instructions Installation Operation User Interface Technology Parameters Applications Examples Process technology Maintenance Wear parts Diagrams Options

11.2011 ©

Bejing Agie Charmilles Industrial Industrial Electronics Co., Ltd/ 2011

Id. N° 372.350.774

Copyright GF AgieCharmilles have compiled this manual to the best of their knowledge and belief. GF AgieCharmilles will not accept any liability for any technical or editorial errors or faults in this manual, or for any direct or indirect damage resulting in connection with the choice, employment or the use of the manual and the product described therein. In addition, GF AgieCharmilles will not accept any liability for the results achieved with the manual or the product, and reserves the right to make changes to the manual and the product described therein at any time and without prior notice. This work including all its parts is protected by copyright. Use of any kind outside of the strict limits of Copyright Law without the consent of GF AgieCharmilles is prohibited and will lead to prosecution. This applies particularly for reproductions, translations, microfilming, and storage and processing in electronic systems © Agie Charmilles SA / Beijing Agie Charmilles Industrial Electronics Co., Ltd / 2011

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User Manual ed. 11.2011

Summary Basis EDM is a machining process which consists of removing material from a workpiece using electrical discharges as the means of machining. This technique is characterized by its ability to machine all materials that conduct electricity (metals, alloys, carbides, graphites, etc.) however hard they may be. To machine using EDM, 4 items are required:

 An electrode  A workpiece Dielectric Electricity The purpose of the dielectric (water or mineral oil) is to reduce the temperature in the machining area, remove residual metallic particles and enable sparks to be created

Electrical discharge machining Sparks are produced by a spark generator and then, at regular intervals, create a succession of craters in the workpiece. Each spark produces a temperature of between 8,000 and 12,000 °C. The size of the crater depends on the energy turned out by the spark generator. The range of the spark varies from a few microns to 1mm.

Physical process The EDM process is comprised of 6 phases:

SP 1U-SP 3U GF AgieCharmil les

1 The electrode approaches the workpiece. The two items are energized.

4 Breakdown of the spark. The workpiece material melts locally and disintegrates. The electrode is slightly worn.

2 Concentration of the electric field towards the point where the space between the electrode and workpiece is smallest.

5 The current is cut off, causing implosion of the spark.

3 Creation of an ionized channel between the electrode and the workpiece

6 Evacuation of the metallic particles by flushing with dielectric

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User Manual ed. 11.2011

Die sinking Used for making injection molds, molds of special shapes and all cavities or volumes of complex shape. The cavity is produced by means of an electrode having the reverse shape to the desired result.

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User Manual ed. 11.2011