Spark erosion is one of the most modern methods used for manufacture of complex recessed parts viz, molds or dies. Controlled of metal is achieved by generating sparks between an electrode and the job and which is submerged in an insulating medium. The correct insulating medium has to be ensure that the eroded material is completely removed from the job as well as control the rate of cooling of the electrode. It should have proper Di-electric value so as to permit controlled electrical discharge at the break-down voltage. It should also not create a fire hazard. Kerosene which is sometimes used as the insulating medium may not meet dielectric strength requirements since it is not specifically manufactured to meet these and its use should therefore be avoided.
- Have good Di-electric strength and are therefore safe to use.
- Are non-corrosive and prolong the life of the electrode.
- Have low surface tension and density allowing the eroded metal particles to be easily flushed out.
- Are safer to use as these have high flash points.
- Require least make up during use.
PACIFIC EDM 200, PACIFIC EDM 300, PACIFIC EDM 400 & PACIFIC EDM 400LV