Tungsten Copper Electrode in PCD EDM
Tungsten copper composite material plays an important role in precision Electrical Discharge Machining (EDM) of Polycrystalline Diamond (PCD) products. CTIA's tungsten copper electrode in PCD EDM is made using tungsten copper composite material via powder metallurgy and copper infiltration, combining high-melting-point tungsten skeleton with copper network. It offers excellent arc erosion resistance, electrical conductivity, and thermal conductivity, helping maintain low electrode wear and stable profile accuracy under high-energy pulse discharge conditions. These properties make it suitable for precision machining of PCD cutting tools and other superhard material components.
1. Characteristics of CTIA's Tungsten Copper Electrode in PCD EDM
(1) Excellent Arc Erosion Resistance: High-melting-point tungsten skeleton withstands high-temperature pulse discharge and resists arc erosion, helping maintain electrode geometry and reduce wear during machining.
(2) Good Dimensional Stability: Low coefficient of thermal expansion helps limit thermal deformation during continuous discharge, maintaining electrode dimensions and profile accuracy during precision machining.
(3) High Electrical and Thermal Conductivity: Copper network provides efficient paths for electrical and thermal conduction. Thermal conductivity can reach 180–220 W/(m·K), helping dissipate heat from discharge zone and reduce localized overheating.
(4) Uniform and Stable Discharge: Dense microstructure with low porosity helps maintain stable discharge conditions and reduce risk of irregular discharge and machining defects.
(5) Multiple Material Grades: Available grades include CuW70, CuW75, CuW80, and CuW85. Different tungsten-copper ratios balance arc erosion resistance, electrical conductivity, and machinability for roughing and finishing operations.
(6) Customizable Electrode Geometries: Combination of hardness, strength, and machinability allows electrodes to be made as round rods, square bars, disc electrodes, and other custom-shaped profiles to suit different EDM equipment and machining requirements.
2. Applications of CTIA's Tungsten Copper Electrode in PCD EDM
(1) PCD Cutting Edge Formation: Used for EDM of cutting edges on PCD turning tools, milling cutters, and woodworking tools, helping reduce edge chipping and microcracks.
(2) PCD Tool Profile Machining: Used to machine complex curves and profiles on PCD inserts, meeting requirements of precision cutting tool manufacturing.
(3) PCD Tool Reconditioning: Used to restore cutting-edge geometry and remove worn sections from PCD tools during reconditioning.
(4) Composite Cutting-Edge Machining: Used for EDM of composite regions at interface between PCD layers and cemented carbide substrates.
(5) Precision Machining of Superhard Components: Used for EDM of fine structures in PCD wire-drawing dies, micro-hole nozzles, and other superhard material components.
3. Specifications of CTIA's Tungsten Copper Electrode in PCD EDM
(1) Common Materials: CuW70, CuW75, CuW80, CuW85, etc.
(2) Product Forms: Round rods, square bars, disc electrodes, and custom-shaped components.
(3) Dimensions and Tolerances: Customizable according to electrode geometry, equipment interface, and machining requirements.
(4) Surface Finishes: Nickel plating, gold plating, and other finishes as required.
CTIA GROUP has nearly 30 years of experience in tungsten copper material manufacturing, with extensive expertise in powder metallurgy, copper infiltration, and precision machining. CTIA provides material selection, electrode structure design, dimensional customization, and precision machining services according to PCD tool geometry, machining requirements, and EDM equipment interfaces.
For any inquiry, please contact tungsten copper manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: tungsten-copper.com
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