W80Cu20 EDM Electrode

W80Cu20 EDM electrode is made of tungsten copper alloy. We mainly process tungsten copper alloy for many years. Tungsten copper alloy 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.

The W80Cu20 EDM electrode is widely used in electrical discharge machining, especially for processing hard alloys and complex molds. Its wear resistance and arc erosion resistance ensure minimal wear and high efficiency in precision machining, making it an ideal choice for manufacturing high-difficulty parts.

Diameter≥0.8mm; Length≤300mm;

Tungsten content:
55%-90%W tungsten copper rod is available.
All can be produced as the requirements of customers, and you can use our tungsten copper rods machining to your request dimension.

Density: W90Cu10 17.2g/cm3, W80Cu20 15.5g/cm3, W85Cu15 16.4g/cm3, W70Cu30 14.5g/cm3

Grade

Chemical composition(%)

1. Types, chemical compositions and properties of W-Cu alloy rod:

2. Applications of W-Cu alloy rod:

Sealed cap for transistors sealing welder, contactor materials for high voltage switches and electrodes for spark processing etc.

High Density and Strength: W80Cu20 has high density and strength, so it can withstand heavy mechanical stress.

Good Conductivity and Thermal Conductivity: Although its electrical conductivity is lower than pure copper, it still performs well enough for EDM applications.

High Wear and Arc Erosion Resistance: Thanks to tungsten's hardness and high melting point, this material offers excellent wear and arc erosion resistance, reducing electrode wear during machining.

Good Machinability: W80Cu20 EDM electrodes are easy to machine and can be shaped into complex designs, making them suitable for various processing needs.

EDM Electrodes: This is the most common use of W80Cu20. It is widely used for machining hard materials like tungsten carbide and tool steel, especially in high-precision molds and complex-shaped parts.

Resistance Welding Electrodes: Due to its high melting point and good conductivity, W80Cu20 is also suitable for resistance welding electrodes, as it can handle high temperatures and current densities.

High-Voltage Discharge Electrodes: In high-voltage vacuum discharge tubes, W80Cu20 electrodes provide stable performance, making them ideal for high-voltage, high-current environments.

Electronic Packaging Materials: With its low thermal expansion and good heat conductivity, W80Cu20 is also used in electronic packaging, meeting the demands of high-precision, high-performance electronic devices.

FAQ

Are you a factory or manufacturer?

A: Yes, we are a factory but generally, we use our trading company to handle the business abroad. It will be convenient to receive the remittance and arrange the shipment.

What is the delivery method?

A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.

Why is your product so cost-effective?

A: We cut out the middlemen in the end-to-end manufacturing process. Rather than obtaining semi-finished goods from other suppliers, we obtain our raw material of APT powder directly from its source.

Do you do spot quality inspection or full inspection?

A: 100% full inspection. Inspectors will check the finished product individually, to ensure they adhere to all parameters. All unqualified products are discarded.

How do you ensure your lead time?

A: We have an efficient Order Management System, from material preparation to machining, and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of W80Cu20 EDM Electrode?

A: Depends on quantity, generally, no MOQ limit.

How to pay for it?

A: A bank transfer (T/T) will be acceptable.

What is the delivery time?

A: around 7-20 days which depends on the quantity and production.

What is kind of the package?

A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo

What is the lead time?

A: from order placed to cargo receiving will take around 10-25 days.

What are the key advantages of W80Cu20?

High wear resistance – Long service life even with tough materials

Excellent arc erosion resistance – Withstands intense sparking without rapid degradation

Good thermal & electrical conductivity – Efficient material removal in EDM

Machinability – Can be shaped into complex geometries

Which materials is it best suited for machining?

Optimized for:
✓ Tungsten carbide
✓ Tool steels (e.g., hardened steel, mold steel)
✓ Other difficult-to-machine alloys

What industries use W80Cu20 electrodes?

Mold & die manufacturing – Especially for intricate cavities

Aerospace – Turbine blades & heat-resistant components

Medical devices – Surgical tooling & implants

Automotive – Fuel injection nozzles & transmission parts

How should I store and handle these electrodes?

Store in dry conditions to prevent oxidation

Avoid mechanical impacts that could cause micro-cracks

Clean with alcohol (not water-based solvents) before precision work

What are the standard sizes and customization options?

Available in:

Rods: Ø1mm–50mm

Blocks: Up to 200×200×300mm

Custom shapes: Wire-cut/CNC-machined per drawings

Why does W80Cu20 outperform in fine-finish EDM?

Its low wear rate maintains sharp edges during:

Micro-EDM (holes <0.1mm)

Mirror-finish machining (Ra <0.2μm)

Deep rib/slot cutting

Can it be reused after wear?

Yes! Minor wear can be re-machined (e.g., surface regrinding) for extended use. Full recycling is possible due to material value.

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