Tungsten Copper Electrode

Tungsten copper electrode is kind of composite metal material and is composed of high purity tungsten powder and good conductivity Cu powder through isostatic pressing and high temperature sintering. Therefore, tungsten copper electrode not only has high melting point(3410℃) and high density (19.34 g/cm³) of W, but also has good conductivity and other advantages of Cu.

According to applications, tungsten copper electrode can be specifically divided into resistance welding electrode, EDM electrode and the electrode of high pressure discharge tube, etc.

1 .Resistance Welding Electrode

Resistance welding electrode is using thermal resistance for welding, which is produced by the pressure of electrode and current run through contact area or close area. It takes advantage of the thermal resistance to melt or model the work-piece and combined it with metal. Resistance welding can be also divided into four types, such as spot weld, caulk weld, beading weld and butt weld. The material of electrode plays a significant role in resistance welding, which can press the welding parts, supply great amount of current and promote the welding area cool down and so on.

2. EDM Electrode

EDM (Electrical Discharge Machining) is also called as discharge machining or electric corrosion machining, which uses pulse discharging between electrodes. The principle is that the electrode and the work-piece used as two poles and put the liquid in the gap of discharge, the pulse voltage will puncture the liquid when the distance decreasing. tungsten copper has good high temperature resistance, high strength under high temperature, arc resistance, excellent conductivity and radiating so that it can be widely used in EDM, resistance welding and high pressure discharge tube electrode. The electrode for EDM is various, as tungsten copper electrode, it should be high density and good uniformity, especially rod, pipe and other shapes of electrodes. In addition, due to the advantage of tungsten, tungsten copper has high electrical speed, low wear rate, accurate shape and excellent anti-corrosion, which increases the accuracy of products.

3. High Pressure Discharge Tube

Discharge tube is a kind of device for preventing from high voltage in input. If the voltage of two ends is high than the limit, there will be internal short circuit and absorb the input high voltage. Combine the high density and high melt point of tungsten with the good plasticity and excellent conductivity of Cu, tungsten copper electrode uses fine tungsten powder and Cu powder and through high temperature sintering and isostatic pressing.

Copper Tungsten Electrode

Copper tungsten electrode supplied by Chinatungsten Online is typically 75% tungsten to 25% copper. This mix of tungsten to copper combines the strength, high density and high melting point of tungsten with the excellent electrical properties and good resistance against DC arcing of copper to form an unbeatable combination.

Copper tungsten electrode is recommended as one of the best electrode materials to use when minimum electrode wear is required to hold fine detail/definition and also when limited flushing exists, to minimise the possibility of DC arcing, produce favourable electrode wear and excellent surface finish.

Copper tungsten electrodes can be used to erode any type of work piece and highly recommended when eroding tungsten carbide, nickel super alloys and other exotic materials.
Copper tungsten electrodes can be machined using high speed steel cutting tools, tungsten carbide cutting tools and standard grinding wheels, we recommend tungsten carbide cutting tools due to the extreme hardness of copper tungsten.

Tungsten Copper Electrode

Tungsten copper electrode is a kind of tungsten copper products, which are also called copper tungsten electrode, tungsten copper alloy electrode. And the tungsten copper electrode are owns the both advantages of tungsten and copper.

Tungsten copper electrodes include EDM electrode, high-voltage electrode discharge tube and electronic packaging materials.

EDM electrode
In view of tungsten steel, high temperature super-hard alloy die to be produced by corrosion, the common electrode wear big, slow, and the W-Cu electrical corrosion of high speed, low loss rate, precise electrode shape, excellent processing performance, to ensure the accuracy of processing pieces of greatly increased.

High-voltage electrode discharge tube
High-voltage vacuum discharge tube in the workplace, the contact material in a few seconds of time zero temperatures thousands of degrees Celsius, while the W-Cu anti-ablation properties, high toughness, good electrical conductivity, thermal conductivity performance to the discharge tube to provide the necessary stability conditions.

Electronic Packaging Materials
Both the low-expansion properties of tungsten, but also has high thermal conductivity properties of copper, its thermal expansion coefficient and thermal conductivity of conductive material can be adjusted to change the composition and thereby to the material provided to facilitate the use.

Tungsten Copper Bar

Tungsten copper bar is a combination of tungsten and copper. The manufacturing process is as follows: press the refractory metal, sinter the pressed compact at a high temperature, and infiltrate it with copper. All this is done under very closely controlled conditions. The result is a relatively hard material with superior arc and wear resistance, high physical Properties: at elevated temperatures, and good electrical and thermal conductivity.

Because of the high eletrical conductivity and low consumption, tungsten copper bars are widely used to make Grid siderod, Lead, Support, Electrode for the Gas discharge lamp.

Tungsten copper bar is composite by tungsten and copper, which owns the properties of both tungsten and copper.
1, Width × Length: (2.0-100.0mm) × (2.0-100.0mm)
2, High: 50-1000mm
3, Density: 12.60-17.05 g/cm3
4, Composition: W 55-90%, Cu 10-45%
5, Surface: Sintering surface, Forged surface, Ground surface