Tungsten Copper Welding Electrode
1. What's Tungsten Copper Welding Electrode?
Tungsten copper welding electrode is a composite electrode used in resistance welding to conduct welding current and transfer pressure to workpieces. It combines tungsten's high melting point, hardness, and resistance to arc erosion with copper's good electrical and thermal conductivity, providing a balance of heat resistance, wear resistance, and heat dissipation. CTIA's tungsten copper welding electrodes feature dense microstructure and stable performance. They are suitable for spot welding and projection welding, helping reduce electrode wear under high temperatures and arc exposure, as well as the risk of sticking under specific welding conditions. Typical applications include automotive manufacturing and electrical equipment production.
2. Characteristics of CTIA's Tungsten Copper Welding Electrode
(1) Excellent Resistance to Sticking: Reduces sticking and metal pickup between electrode and workpiece during welding, helping minimize dressing frequency and improve continuous production efficiency.
(2) High-Temperature and Arc Erosion Resistance: Maintains good shape and electrical conductivity under high-current welding conditions, even when electrode tips are exposed to temperatures of several hundred degrees Celsius. Softening temperatures are generally above 700°C.
(3) Balanced Electrical and Thermal Conductivity: Electrical conductivity can be adjusted within approximately 30–50% IACS by varying copper content. Good thermal conductivity helps dissipate heat quickly and reduce electrode overheating and deformation.
(4) Good Hardness and Strength: Hardness typically ranges from 150 to 220 HB, providing resistance to deformation under welding pressure while retaining good machinability for manufacturing various electrode tips.
(5) Long Service Life: Lower wear rates and longer replacement cycles compared with conventional copper or chromium-zirconium-copper electrodes, effectively lowering overall operational costs.
(6) Flexible Composition Selection: Tungsten-to-copper ratios can be selected according to workpiece materials, such as steel, stainless steel, galvanized sheet, copper, and aluminum, as well as welding current and process requirements, balancing electrical conductivity and durability.
3. Applications of CTIA's Tungsten Copper Welding Electrode
(1) Automotive Manufacturing: Used for nut projection welding and stud projection welding in automotive production, utilized in projection welding electrodes and inserts for stations demanding high heat resistance and working face wear resistance.
(2) Electrical Equipment Manufacturing: Used for resistance welding or resistance brazing of copper and copper alloy conductors, terminals, and wires, with specific applications depending on component geometry, contact conditions, and welding parameters.
(3) Metal Fabrication: Used for resistance butt welding, flash butt welding, and cross-wire resistance welding of metal rods and wires, as well as projection welding of metal fasteners.
(4) Welding Equipment and Tooling Manufacturing: Used for electrode inserts and bushing inserts in seam welding equipment, as well as working sections of projection welding and butt welding dies, with compositions and structures matched to equipment design, welding pressure, and cooling conditions.
4. Specifications of CTIA's Tungsten Copper Welding Electrode
(1) Common Materials: CuW50, CuW55, CuW70, CuW75, CuW80, etc.
(2) Product Form: Electrode rods, block electrodes, disc electrodes, electrode inserts, and special-shaped parts.
(3) Dimensions and Tolerances: Customizable according to application requirements.
CTIA GROUP has nearly 30 years of experience in tungsten copper alloy manufacturing, with extensive expertise in powder metallurgy and precision machining. Based on welding processes, workpiece materials, equipment interfaces, and electrode working surface requirements, CTIA provides material selection, structural design, dimensional customization, and precision machining services for tungsten copper welding electrodes.
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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