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W-Cu Series
Material Type
Metal
Material Name
W-Cu Series (ASTM)
Process Compatibility
CNC Milling, CNC Turning
introduction
W-Cu Series in CNC Machining
Tungsten-Copper (W-Cu) alloys have a balance of high thermal conductivity, wear resistance, and electrical conductivity.
Comprising tungsten as the primary component and copper as the secondary, typical compositions range from 70% W / 30% Cu to 90% W / 10% Cu.These alloys are commonly used in electronic packaging, aerospace components, and CNC-machined parts. When machining W-Cu, careful considerations are required.
We use proper tooling, such as carbide or PCD inserts, and cutting fluids to manage heat. We optimize machining parameters, and post-machining processes like grinding may be applied for specific surface finishes. Precision and quality control are important; DEK has experienced machinists familiar with W-Cu alloys' unique characteristics. Additionally, we observe safety precautions when machining due to potential health hazards associated with tungsten dust and fumes during machining.
Properties
Properties Table of W-Cu Series (ASTM)
| MECHANICAL PROPERTIES | |
|---|---|
| Ultimate Tensile Strength | 500-800 MPa |
| Yield Strength | 300-600 MPa |
| Young's Modulus(Elasticity) | 200-320 GPa |
| Elongation at Break | 1-10% |
| Physical Properties | |
| Corrosion Resistance | Generally good, but can be affected by Cu content and environment |
| Magnetism | Typically non-magnetic |
| UV Resistance | High UV resistance |
| Weldability | Can be challenging due to the mismatch in properties; specializen welding methods may be required |
| Thermal Properties | |
| Maximum Service Temperature | Up to 500°C(depending on the Cu content) |
| Thermal Expansion Coefficient | 6-8 x 10^-6/°C |
| Thermal Conductivity | 150-200 W/(m·K)(depending on composition) |
| Electrical Properties | |
| Electrical Resistivity | 5-15 μΩ·cm(depending on composition) |
| ESD Safety | Good electrical conductivity; can dissipate static charges effectively |
TECHNOLOGY OVERVIEW
Basic Knowledge of W-Cu Series (ASTM)
What is W-Cu Series (ASTM)?
The Tungsten (W)–Copper (Cu) series refers to composite materials that combine tungsten and copper. Tungsten is known for its high melting point, great thermal and electrical conductivity, and strong mechanical properties, while copper has high thermal and electrical conductivity. By combining these materials, engineers create composites with unique properties suitable for applications needing a mix of high thermal and electrical conductivity along with mechanical strength.
Common uses include electronic packaging, aerospace components like rocket nozzles, and defense applications. Tungsten–Copper alloys find a place in high-temperature environments and are used for resistance welding electrodes, where a balance of strength and conductivity is important. The specific composition varies based on the desired properties for different applications, allowing customization for optimal performance.
Advantages of W-Cu Series (ASTM)
High thermal conductivity
Low thermal expansion
Excellent electrical conductivity
Good machinability
High strength at elevated temperatures
Superior arc erosion resistance
Effective for electrical and electronic applications
Applications of W-Cu Series (ASTM)
Aerospace components
Electronic packaging
Microwave devices
Power electronics
Medical imaging equipment
Microelectronics
Thermal management systems
Semiconductor manufacturing
X-ray tubes
High-performance electronic devices
FAQ
Machining W-Cu Series (ASTM) Buying FAQ
No, W-Cu Series (Tungsten Copper) does not rust. Tungsten is a corrosion-resistant metal, and when combined with copper in the W-Cu Series, it retains its corrosion resistance.
While tungsten's high melting point makes traditional forging challenging, W-Cu Series materials are typically produced through powder metallurgy methods, such as sintering. This process involves compacting and heating the powder mixture to create a solid, dense material. While not forged in the traditional sense, W-Cu Series materials can be shaped and formed through various machining processes, including CNC machining, to achieve the desired final product.
Annealing is a heat treatment process commonly used to relieve stress and improve the material's mechanical properties. However, the applicability of annealing to W-Cu Series depends on the specific composition and manufacturing process. Tungsten has a high melting point, and copper has a lower melting point, which can complicate traditional annealing processes. Specialized heat treatment methods tailored to the W-Cu Series composition may be used to achieve desired properties without compromising the integrity of the material.
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