Tungsten is the preferred metal electrode material. Its strength, density, hardness is high, close to the melting point 3400 ℃, so the EDM process, the tungsten electrode actual loss is small.
But for pure tungsten electrode has two difficulties: a difficult process 2 expensive.
So take advantage of the plasticity of copper, high conductivity, etc., made of composite materials, electrode treasures became - tungsten copper electrode.
Features: · Good breaking arc good thermal conductivity properties · · · High temperature thermal expansion does not soften
Advanced EDM electrodes:
For tungsten steel, high carbon steel, carbide, hardened tool steel using ordinary working electrode loss, low precision, slow processing shortcomings, the use of high conductivity copper tungsten, high melting point, thermal expansion characteristics, improve processing speed, accuracy.
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