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INTA Technologies manufactures custom copper tungsten (also known as tungsten copper, CuW, WCu) components from a variety of material formulations. The parts are made-to-order, generally the customer supplies drawings and specifications. INTA buys rod stock and other raw materials from mills and then machines the parts to print. The CTE of 85/15 is 7.1 ppm per deg C at room temperature (5.6 for 90/10). Some common alloys include: 80/20 85/15 90/10 The numbers represent the percentage by weight of tungsten/copper. Copper tungsten is used for primarily three reasons: 1. Matching coefficient of thermal expansion to a mating material. 2. Thermal conductivity for heat sinks. 3. Density for RF shielding. There are two formulation processes for CuW. 1. Powdered Metal: A blending of tungsten, copper and various binders are formed under high pressure and then sintered at high temperatures where the material becomes fully dense. 2. Infiltration: The process of infiltrating copper into a tungsten skeleton. This process is performed under pressure and high temperature. Each of these processes has its own benefits. Each project is analyzed by our engineering staff to discover the most appropriate & cost effective type of copper tungsten material and forming method to be used. INTA also provides coating for CuW components. Common coating include nickel and gold. Other available coatings include tin, silver, copper, platinum, rhodium, etc. Please click below (FAQ) for further information or contact INTA Technologies. |
| INTA Technologies |
| 2281 Calle De Luna, Santa Clara, CA 95054 Tel: (408)748-9955 | Fax: (408)727-3027 contact@intatech.com |
Copper Tungsten | CuW