1. Adaptation to specific needs
Each project has its own requirements in terms of materials, thickness and working conditions. Custom-made tungsten electrodes are designed to perfectly fit your needs, ensuring optimal welding.

2. Superior Weld Quality
Custom electrodes allow for more stable and accurate arcs, reducing the risk of defects such as porosities or cracks. This results in high-quality welds, which are essential in critical industries such as aerospace and pharmaceuticals.

3. Durability and Resistance
Made from pure tungsten or specific alloys, these electrodes are designed to withstand high temperatures and harsh working conditions, ensuring increased longevity and reduced maintenance costs.

4. Cost Optimization
By choosing electrodes tailored to your needs, you minimize material waste and improve the efficiency of your welding operations, which can result in significant savings.

- Aerospace : For critical welds requiring absolute precision.

- Pharmaceutical : Ensuring cleanliness and compliance with strict standards.

- Energy: In environments where safety and reliability are paramount.

- Automotive: For assemblies that require both robustness and aesthetics.

Principle of Resistance Welding
The resistance welding process consists in applying a high electrical intensity through the parts to be assembled. When the current passes, resistance to electrical flow between contact surfaces generates heat. This localized heat melts the metal, allowing the parts to fuse when under pressure.

Resistance Welding Types

1. Spot welding: This type of welding is particularly common in the automotive industry for sheet metal assembly. Electrodes are placed on the weld parts, and a short electrical pulse creates welding points.

2. Spark Welding (or Spark Resistance Welding): Used for more complex joints, this process uses specially shaped electrodes to generate sparks and thus solder parts more precisely.

3. Rail welding: This method is used for large parts, where a large area must be welded simultaneously.

Advantages of Resistance Welding

- Speed: Resistance welding is a fast process, allowing many joints to be made in a short time, which increases productivity.

- Cost Effective: Since it does not require filler materials and the cycle time is short, this technique is often more economical than other welding processes.

- Weld Strength: The joints obtained by resistance welding are generally very strong and resist well to mechanical stress.

- Less deformation: Since the heat is generated locally and for a very short time, the risk of deformation of the parts is reduced.

Tungsten-rhenium alloy is a solid solution reinforced alloy consisting of a tungsten element as the matrix and a rhenium element.  Rhenium contents commonly used in alloys are 3, 5, 10, 25 and 26.  It is divided into low grade W-Re alloy (Re 5%) and high grade W-Re alloy (Re 15%).
Tungsten-rhenium alloy has better mechanical properties and ductility than pure tungsten, and has high resistivity, which gives it better processing ability and weldability.
Tungsten-rhenium alloy has a series of excellent properties, such as high melting point, high strength, high hardness, high plasticity, high recrystallization temperature, high resistivity, a high thermoelectric potential value, low vapour pressure, low electron working function and low ductility and brittleness transition temperature. Tungsten-rhenium is in the form of wire, rod, plate and sheet.  Wire materials make up the vast majority and are mainly used as high temperature structural materials.

Tungsten-rhenium alloy is a composite of two transition metals, tungsten (W) and rhenium (Re). This combination creates a material with unique properties, used in demanding environments. Typical chemical composition of this alloy:

• Tungsten (W): Approximately 95% to 99% by weight
• Rhenium (Re): Approximately 1% to 5% by weight

Main characteristics of the alloy W-Re:

• Heat resistance: W-Re alloy offers exceptional resistance to high temperatures, making it suitable for applications under extreme thermal conditions, such as gas turbine components and thermal shields in the aerospace industry.

• Corrosion resistance: Thanks to the presence of rhenium, which is known for its corrosion resistance, W-Re alloy provides increased protection against corrosive environments, thus extending its service life and reliability.


W-Re alloy applications:

• Aerospace industry: Rocket engine components, rocket nozzles, structural parts.
• Semiconductor Industry: Components for substrate media, electrical contacts.
• Chemical Industry: Chemical reactor equipment, corrosion resistant parts.