Tungsten copper rods are a two-phase structured pseudo-alloy primarily composed of tungsten and copper, classifying as a metal matrix composite. Since copper and tungsten do not melt into each other in either liquid or solid states, mixing these two composites does not result in any chemical reaction; instead, they retain their original physical and mechanical properties. This material is produced using specific powder metallurgy processes. Tungsten forms the framework in the alloy, while copper infiltrates the gaps within the tungsten framework. This combination leverages the high melting point and high-temperature resistance of tungsten, along with the good plasticity of copper, which fills the voids between sintered tungsten particles. Additionally, some copper diffuses into the tungsten grains, reducing the notch sensitivity of the alloy and improving its plasticity.

Of course, it's important to be aware of the precautions when machining tungsten copper bars. During cutting operations, especially when creating sharp angles and thin walls, there may be a risk of lack of material due to impact or excessive cutting forces. When drilling through holes in tungsten copper silver tungsten alloys, please be cautious of the feed force as you approach the through hole to avoid machining defects. Tungsten copper alloys are non-magnetic, so ensure the product is securely fastened before beginning the operation.

Additionally, discharge machining, wire-cutting processing of tungsten copper rods, and relatively slow wire-cutting speeds are normal phenomena. Alloys composed of tungsten and copper, with copper content typically ranging from 10% to 50%, are produced using powder metallurgy methods. These alloys exhibit excellent electrical and thermal conductivity, good high-temperature strength, and a certain degree of plasticity. At very high temperatures, such as above 3000 degrees Celsius, the copper in the alloy becomes liquid and evaporates, absorbing a large amount of heat and reducing the surface temperature of the material. Therefore, these materials are also known as metal sweating materials.