Copper Tungsten Mechanical Properties

The physical and mechanical properties and melting point of tungsten copper material will be positively or oppositely affected by varying the amount of copper tungsten in the composite.

Copper tungsten mechanical properties.

Copper tungsten is a good choice for a vacuum contact due to its low cost resistance to arc erosion good conductivity and resistance to mechanical wear and contact welding. Tungsten copper wcu materials are used for arcing contacts in sf 6 circuit breakers for high and medium voltage applications. It is also used in construction and industrial machine. All of this is done under very closely controlled conditions.

The mechanical and physical properties of tungsten copper alloy vary with composition. Tungsten copper for sf 6 circuit breakers. Heavy duty projection welding electrodes die facings for electro forming and electro forging also facings for upsetting of rivets and studs. At the heart of the switching chamber wcu arcing contacts are exposed to extreme mechanical and thermal stresses.

Electrical conductivity iacs rockwell hardness ultimate strength psi cross breaking strength psi density gms cc. Most of copper element is used in manufacturing electrical and electronic equipments such as wirings and components. By adjusting the content of tungsten we can have its coefficient of thermal expansion cte designed to match those of materials such as ceramics al2o3 beo semiconductors si and metals kovar etc. 20 copper and 80 tungsten.

For example as the copper content gradually increases the electrical and thermal conductivity and thermal expansion exhibit a tendency of being stronger. Mechanical properties hardness hrb 69 83 77 90 85 98 89 102 94 106. Cuw is usually a contact for vacuum oil and gas systems. Tungsten copper is frequently used as an electrode material in case that the typical copper contact materials e g.

Tungsten copper heat sinks they are composites of tungsten and copper. Copper chrome zirconium cucrzr and others have reached their limits. Tungsten and its alloys are used in high temperature applications like welding electrodes high temperature furnace etc. Machining the machining is carried out by carbide tools.

Consisting of pure tungsten w powder suspended in a matrix of copper cu these alloys are readily machinable and known for good thermal and electrical conductivity low thermal expansion being non magnetic good performance under vacuum and resistance to erosion from arcing. Mechanical properties of tungsten comprise of its density tensile strength viscosity vapor pressure.