Product categories

ULTRAFINE GRAPHITE
EDM-4

POCO’s EDM-4 is the premier offering in the Ultrafine grain classification. This highly -iso tropic grade combines extraordinary strength with moderate hardness, yielding superior electrode fabrication characteristics. EDM-4 has superior EDM performance characteristics for metal removal rates, wear and surface finish.

Product Description

Typical Value

Average Particle Size: . . . . . . . . . . . . . . . . . . . . . . <4 microns Flexural Strength: . . . . . . . . . . . . . 17,500 psi, (1,230 kg/cm2) Compressive Strength .:. . . . . . . . . 21,500 psi, (1,511 kg/cm2) Hardness: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Shore Electrical Resistivit y. :. . . . . . . . . . . . . . 500 μ in, (12.7 μ m)  

Applications

  • EDMing of fine detailed electrode s
    requiring excellent surface finishes
  • Wire cut electrodes
  • Plastic injection molds