Tungsten Copper Disc Electrode
1. What's Tungsten Copper Disc Electrode?
Tungsten copper disc electrode is a disc-shaped composite electrode made by powder metallurgy and copper infiltration. CTIA's tungsten copper disc electrode combines tungsten's hardness and arc erosion resistance with copper's electrical and thermal conductivity, offering low wear, good profile retention, and thermal stability for precision machining.
2. Characteristics of CTIA's Tungsten Copper Disc Electrode
(1) Resistance to Electrical Erosion and Low Wear: Tungsten's high melting point reduces electrode wear during discharge, resulting in a lower wear rate than pure copper electrodes and better profile retention.
(2) Good Electrical and Thermal Conductivity: Copper phase facilitates electrical and thermal conduction. CuW70 typically has an electrical conductivity of approximately 42% IACS, compared with approximately 34% IACS for CuW80, balancing current transmission and heat dissipation with resistance to electrical erosion.
(3) Good Dimensional Stability: High disc-face flatness and arc erosion resistance help maintain electrode geometry during precision grinding and complex profile machining.
(4) Wear Resistance: Hardness typically ranges from 175 to 220 HB, supporting prolonged continuous discharge and high-speed rotary machining.
(5) High Machining Precision: Precision turning and grinding help control end-face runout, flatness, and critical dimensions to meet precision equipment interface requirements.
(6) Flexible Material Selection: Available compositions include CuW70, CuW75, CuW80, and CuW85, etc. Higher tungsten content generally improves arc erosion resistance, while lower tungsten content offers higher electrical conductivity. The appropriate composition depends on workpiece material, machining requirements, and desired electrode service life.
3. Applications of CTIA's Tungsten Copper Disc Electrode
(1) PCD Tool Grinding: Used for cutting-edge forming, profile machining, and dressing of Polycrystalline Diamond (PCD) tools, helping maintain edge accuracy and electrode profile.
(2) PCBN Tool Grinding: Used for electrical discharge grinding of Polycrystalline Cubic Boron Nitride (PCBN) tools, meeting the precision shaping requirements of high-hardness cutting tools.
(3) Mold and Profile EDM: Used for Electrical Discharge Machining (EDM) of mold cavities, complex flat surfaces, and irregular profiles, offering low electrode wear and good surface quality.
(4) Resistance Welding: Used as disc-shaped electrodes in spot and projection welding applications, providing resistance to sticking and high-temperature wear.
(5) Superhard Material Machining: Suitable for precision EDM of difficult-to-machine materials, including cemented carbide and ceramic matrix composites.
4. Specifications of CTIA's Tungsten Copper Disc Electrode
(1) Material Compositions: Cu30W70, Cu25W75, Cu20W80, Cu15W85, etc.
(2) Disc Types: Solid discs, discs with center holes, and custom-shaped disc electrodes.
(3) Dimensions and Tolerances: Customized according to requirements.
CTIA GROUP combines nearly 30 years of tungsten copper alloy manufacturing experience with extensive expertise in powder metallurgy and precision machining. CTIA offers tailored material selection, structural design, and precision machining of tungsten copper disc electrodes to meet specific requirements for workpiece materials, electrode wear, and forming accuracy.
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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