SIGRAFINE® specialty graphites for EDM electrodes

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Electrical discharge machining (EDM) is a modern, thermally ablative machining process for all electrically conductive materials and is used for high-precision material processing. The main areas of application for electrical discharge machining are the manufacture of injection moulds, die casting moulds, forging dies and prototypes.

Specialty graphite electrodes are becoming increasingly important in electrical discharge machining (EDM) when very high precision and advanced design are required. With our innovative products and material solutions we are the partner of choice to leading companies.

Advantages of specialty graphite electrodes:

Time and cost saving thanks to low wear
Less complex milling tools and easier machining
Exceptionally suitable for filigree geometries and high-quality surface finishes (micromachining)
Insensitivity of the electrode and component to the effect of heat

Our isostatically pressed SIGRAFINE^® fine-grain graphites are appreciated for their outstanding properties in EDM processes. They permit high material removal rates with low electrode wear and have high flexural strength at elevated temperatures.

By selecting the most suitable material, even the highest surface finish requirements can be easily fulfilled. We have long-standing EDM expertise and know what is important. With our wide range of materials and technical support, we can help OEMs and end users achieve the best results.

Applications	R8340	R8500X	R8500	R8510	R8650	R8710
Block/rod/ mass electrodes	●	●	●	●	●	●
Standard electrodes	●	●	●	●	●	●
Ready-to-run electrodes	●	●	●	●	●	●

To ensure consistent quality, every stage of our production process is strictly monitored. Every block is tested and documented. The measures range from meticulous incoming goods checks and raw material tests to continuous monitoring of process parameters and destructive analysis of samples taken from each individual block leaving the production process. In addition, clear identification marks make every product fully traceable back through every stage of the production process.

All test laboratory work, such as comparative measurement, is offered to our customers as an independent service. Please contact us.

Specialty Graphites for EDM Electrodes

Our isostatically pressed SIGRAFINE fine-grain graphites are appreciated for their outstanding properties in EDM processes. They permit high material removal rates with low electrode wear and have high flexural strength at elevated temperatures.

SIGRAFINE^® fine-grain graphite
Versatile, reliable, efficient.

Our comprehensive range of SIGRAFINE fine-grain graphites covers virtually all EDM requirements, right through to high-performance milling (HPM). The speed at which graphite can be machined is limited only by the performance of the computer and the machining system, but not by the material itself. Besides very high cutting speeds, feed rates of 10 m/min and more can be achieved, depending on the electrode geometry. These parameters are comparable with those for aluminum and plastics.