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Electrode Material:

Form / Shape:

OD / Width :

Length:

Thickness:

Resistivity:

Tensile Strength (UTS):

Help with EDM Electrode Materials specifications:

Material Types
   Electrode Material:       
   Your choices are...         
   Brass       Brass is an alloy of copper and zinc. Brass materials are used to form EDM wire and small tubular electrodes. Brass does not resist wear as well as copper or tungsten, but is much easier to machine and can be die-cast or extruded for specialized applications. EDM wire does not need to provide EDM wear or arc erosion resistance since new wire is fed continuously during the EDM wiring cutting process. 
   Carbon Graphite       Carbon graphite provides a cleaning action at low speeds. Carbon graphite was one of the first brush material grades developed and is found in many older motors and generators. It has an amorphous structure. 
   Copper (Cu)       Copper is second only to silver in terms of bulk electrical conductivity. Copper has better strength than silver, but offers inferior oxidation resistance. Often, copper is used as a base metal in electrical contact and electrode applications. Copper is also used to manufacture EDM electrodes. Copper has better EDM wear resistance than brass, but is more difficult to machine than either brass or graphite. Copper is also more expensive than graphite. Copper is useful in the EDM machining of tungsten carbide, or in applications requiring a fine finish. 
   Copper Tungsten       Copper tungsten materials are composites of tungsten and copper. They are produced using powder metallurgy processes. Copper tungsten is very expensive compared to other electrode materials, but is useful for making deep slots under poor flushing conditions and in the EDM machining of tungsten carbide. Copper tungsten materials are also used in resistance welding electrodes and some circuit breaker applications. 
   Copper Zirconium Diboride (CuZrB2)       Copper zirconium diboride materials are composites of zirconium diboride particles in a copper matrix. They are produced using powder metallurgy processes. These materials are very expensive, but have much lower erosion rates than copper or graphite electrode materials. Copper zirconium diboride has erosion rates similar to copper tungsten, but can provide higher machining rates. 
   Electrographite       Electrographite brush-materials are processed with a special high-temperature method that stabilizes the graphite. Electrographites are the most common graphite grades used in newer motors, generators, and electrical equipment. Electrographites provide good performance at higher levels of voltage, current density, and speed. 
   Silver Tungsten       Contact materials consist of tungsten carbide particles dispersed in a matrix of silver. Silver and tungsten carbides are mutually insoluble. Tungsten carbide provides excellent erosion resistance and good anti-welding characteristics in high-power applications.  For circuit breaker applications, silver tungsten carbide is better than silver tungsten because the formation of oxides leads to high contact resistance during high cycle applications. 
   Tellurium Copper       Tellurium copper is useful in EDM machining applications requiring a fine finish. Tellurium copper has a machinability that is similar to brass and better than pure copper. 
   Tungsten       Tungsten is a refractory metal with elevated temperature strength. Tungsten has a high melting point (3410oC) and high resistance to arcs (low EDM wear), but also low conductivity. Tungsten's brittle nature and high melting point often results in fabrication methods that use grinding or powder metal techniques.  
   Specialty / Other       Other unlisted, specialized, or proprietary brush materials. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Shape / Form
   Form / Shape:       
   Your choices are...         
   Wire       Products are provided as wire or wire stock. EDM wire is used in traveling-wire EDM machines. EDM wire does not need to provide EDM wear or arc erosion-resistance since new wire is fed continuously during the EDM wire-cutting process. 
   Other       Other unlisted, specialized, or proprietary forms or shapes. 
   Rod Stock       Products are solid rod stock. 
   Tapping Electrodes       Products are prefabricated for EDM machining of female or internal threads. 
   Tube / EDM Drilling Electrode       Products are solid rod or hollow tube-shaped electrodes for drilling or trepanning applications. Tube-shaped electrodes with a single bore or multiple bores are used for drilling or trepanning applications. 
   Block / Billet       Products are large blocks, billets, or other raw stock forms of graphite, copper, tungsten, tungsten-copper, brass wire, or other materials used to form EDM electrodes or arc furnace electrodes. 
   Application Specific / Custom       Products are fabricated in the form of a custom or application-specific shape. 
   Bar Stock       The contact material is provided in the form of bar stock. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
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Specifications
   OD / Width        This is the outer diameter (OD) or width of a component or stock-form material such as a pad, block, strip, bar, plate, or tube.  This measurement may also represent the outer diameter or width of fabricated components such as electrodes or contact tips. According to ISO, EN or DIN brush standards, the brush width is the axial dimension, parallel to the motor or generator shaft.  
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Length       This is the length of a component or stock form material such as a pad, block, strip, bar, rod, plate, or tube. Typically, length is the largest dimension of the component. According to ISO, EN or DIN brush standards, the brush length is the radial dimension, or the dimension perpendicular to the commutator or slip ring. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Thickness       The thickness is typically the smallest dimension of a pad, block, strip, sheet, or plate material. According to ISO, EN, or DIN brush standards, thickness is defined as the dimension tangential or in the same rotational direction as the commutator or slip ring. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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Properties
   Resistivity       Resistivity is the inverse of conductivity. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Tensile Strength (UTS)       Ultimate tensile strength (UTS) is the amount of applied stress required to cause a control specimen to fail under tensile load conditions. 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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