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tungsten parts are used in a wide range of applications. Its high melting point, resistance to high temperatures, and hardness make it a versatile metal.
Originally named wolfram, tungsten is a rare earth metal that is extracted from two minerals: scheelite (CaWO4) and wolframite [Fe,Mn)WO4. Its unique properties make it an attractive material for many commercial and industrial applications.
The first use of tungsten came from the arms industry, where it was primarily used to produce tools for cutting steel. Today, it is also a popular raw material for manufacturing a range of products, including high-powered lightbulb filaments and targets for X-ray tubes.
Tungsten is a refractory metal that is often incorporated into alloys to increase strength and hardness. It has a higher melting point than all other metals and is harder than steel and gold, which makes it an excellent choice for applications that demand toughness or heat-resistant materials.
Another useful property of tungsten is its ability to conduct heat quickly and efficiently. This makes it an ideal material for components that must be subjected to high temperature and pressure, such as in heating elements in electrical furnaces or X-ray tubes.
When machining tungsten, machinists must be aware of its unique properties and handle it carefully. It can be folded, bent, formed, flow-turned, sheared, stamped, punched, riveted, or cut with a hacksaw, but it is difficult and expensive to cold-tool and must be cut well above its transition temperature.