Carbide cutting tools due to a high wear resistance, toughness and a cut rate and are widely used, more than 90% of foreign tools and more than 55% of the cutter are made of cemented carbide materials, turning carbide Bit cutter has covered almost all varieties of knives. Looking to the future, carbide cutting tools is still one of the most widely used tool materials.

One of the tungsten carbide cutting tools actuality research is that tungsten carbide cutting tools toward the four main directions: grain refinement; coated tungsten carbide cutting toolss; surface, the overall heat treatment and heat treatment cycle; add rare metal and rare earth element.

Another tungsten carbide cutting tools actuality research is that these methods may help to further improve the overall performence of tungsten carbide cutting tools, but they all have different degrees of impairment and lacks of preparation also limit the promotion of tungsten carbide cutting tools.

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Tungsten carbide cutting tools chemical wear is a chemical reaction that occurs during the tungsten carbide cutting tools that makes tungsten carbide cutting tools wear occurs. Specific process is as follows:

In the metal cutting process, strong friction will produced between tungsten carbide cutting tools and the workpiece, cutting heat makes the temperature increased sharply in cutting zone.In order to reduce friction, the use of cutting fluid is needed which will make Co and W in tungsten carbide cutting tools leaching. When the temperature of the cutting area at about 700 ℃, Co and W in tungsten carbide cutting tools will work with oxygen in the air oxidation occurs, generating softer oxide, such as CoO, WO3. The adhesive strength of the tungsten carbide cutting tools chemical wear degree is related to the low adhesion strength of the oxide film. The higher the adhesive strength of the oxide film, the faster tungsten carbide cutting tools chemical wear. The lower the adhesive strength of the oxide film, the slower tungsten carbide cutting tools chemical wear. Co and W in tungsten carbide cutting tools may also be of some substances react to form a precipitate membrane, resulting in cobalt leaching; tungsten can also occur in aqueous solution in order to accelerate dissolution of tungsten carbide cutting tools wear.

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Solid carbide cutting tools can be divided into drills, reamers, taps and end mills, drills, reamers and taps the whole processing tools, drills and mills are the main products of solid carbide cutting tools, accounting more than 98% of solid carbide cutting tools.

Solid carbide cutting tools market structure on the one hand the performance in 2010 China became the world's largest consumer market tool. 110 million in imports of solid carbide cutter about 2 billion yuan, handle about 10 million. These tools are mostly imported into the high-end manufacturing field of aerospace, auto, rail transport, energy, electricity, mold manufacturing and other key industries.

Solid carbide cutting tools market structure on the other hand is that in the past decade, China's solid carbide market gradually forms a market structure in Europe and America, Japan, Korea, Taiwan and domestic hegemony. Domestic Solid carbide cutting tools tend to be concentrated in low-end drills and cutters and PCB industry, micro-diameter tool, the class tool although the market is considerable, but the value is very low, gradually reduced resource consumption products. High-end solid carbide cutting tools dominated by Europe and Japan.

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Linear accelerators (linacs) which produce megavoltage X-rays. The first use of a linac for medical radiotherapy was in 1953 (see also radiotherapy). Since its high density and atomic mass, tungsten alloy exhibits excellent absorption behaviour against electromagnetic radiation such as X-rays and gamma-radiation. Tungsten alloy material usually be placed in linear accelerators.  Commercially available medical linacs produce X-rays and electrons with an energy range from 4 MeV up to around 25 MeV. The X-rays themselves are produced by the rapid deceleration of electrons in tungsten alloy, which produces an X-ray spectrum via bremsstrahlung radiation. The shape and intensity of the beam produced by a linac may be modified or collimated by a variety of means. Thus, conventional, conformal, intensity-modulated, tomographic, and stereotactic radiotherapy are mostly produced by specially-modified tungsten alloy linear accelerators.

The photograph below shows tungsten alloy materials to manufacture linear accelerators.

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Infrared (IR) point sensor is one type of gas detectors.Infrared point sensors are usually made of tungsten alloy. Tungsten alloy infrared point sensors can be used to detect hydrocarbons and other infrared active gases such as water vapor and carbon dioxide. Tungsten alloy infrared point sensors are commonly found in waste-water treatment facilities, refineries, gas turbines, chemical plants, and other facilities where flammable gases are present and the possibility of an explosion exists.

Tungsten alloy infrared point sensors infrared point sensors use radiation passing through a known volume of gas; energy from the tungsten alloy sensor beam is absorbed at certain wavelengths, depending on the properties of the specific gas. Tungsten alloy infrared point sensor is advantageous because it does not have to be placed into the gas to detect it and can be used for remote sensing.

The photograph below shows tungsten alloy materials to manufacture infrared point sensors.

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A collimator is most commonly made of tungsten alloy, and is rated according to how many half value tungsten alloy layers it contains, i.e., how many times it reduces undesirable radiation by half. In neutron, X-ray, and gamma ray optics, a tungsten alloy collimator is a device that filters a stream of rays so that only those traveling parallel to a specified direction are allowed through. Tungsten alloy collimators are used in neutron, X-ray, and gamma-ray optics because it is not yet possible to focus radiation with such short wavelengths into an image through the use of lenses as is routine withelectromagnetic radiation at optical or near-optical wavelengths. Tungsten alloy collimators are also used with radiation detectors in nuclear power stations for monitoring sources of radioactivity.

For industrial radiography using gamma radiation sources such as Iridium-192 or Cobalt-60, a collimator (beam limiting device) allows the radiographer to control the exposure of radiation to expose a film and create a radiograph, to inspect materials for defects. For instance, the thinnest walls on the sides of a 4 HVL tungsten alloy collimator 13 mm (0.52 in) thick will reduce the intensity of radiation passing through them by 88.5%. The shape of these tungsten alloy collimator allows emitted radiation to travel freely toward the specimen and the x-ray film, while blocking most of the radiation that is emitted in undesirable directions such as toward workers.

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Carbide file is a metalworking, woodworking and plastic working tool with carbide as its abrasive surface. The cut of the carbide file refers to how fine its teeth are. They are defined as (from roughest to smoothest), rough, middle, bastard, second cut, smooth, and dead smooth.

A single-cut file has one set of parallel teeth while a cross-cut or double-cut file has a second set of cuts forming teeth. In Swiss-pattern files the teeth are cut at a shallower angle, and are graded by number, with a number 1 file being coarser than a number, etc. Most files have teeth on all faces, but some specialty flat files have teeth on only one face or one edge, so that the user can come right up to another edge without damaging the finish on it.


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Carbide file is a metalworking, woodworking and plastic working tool with carbide as its abrasive surface, and used to cut fine amounts of material from a work piece. It most commonly refers to the hand tool style, which takes the form of a steel bar with a case hardened surface and a series of sharp, parallel teeth. Most files have a narrow, pointed tang at one end to which a handle can be fitted.



Carbide files falls into various types by varying its sizes, shapes, cuts, and tooth configurations. The cross-section of a file can be flat, round, half-round, triangular, square, knife edge or of a more specialized shape.


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A gas-filled radiation detector is usually a glass tube that contains two concentric electrodes and a gas such as argon. Tungsten alloy materials are typically used for gas-filled radiation detector components, such as tungsten alloy tube and foil.

Tungsten alloy has a high atomic number and a high density, both of which give the metal unusually good absorption cross-section. This makes the tungsten alloy metal very sensitive to gamma rays. The tungsten metal is chemically stable to chlorine, bromine or other halogen gas used as a quench gas. In addition, since the environmental protection character of tungsten alloy, its can be widely used in gas-filled radiation detector.

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In a Geiger-Mueller radiation detector including a relatively large surface stainless steel cathode, a coating of chromium oxide on the interior surface of said cathode, an anode disposed in spaced apart relationship to said cathode in a sealed chamber, and the improvement comprising a liner in contact with the chromium oxide layer and consisting of a thin metallic tungsten alloy foil.

Due to the tungsten content of ≥ 90 wt.% the material exhibits excellent X-ray absorption. Furthermore tungsten alloy with respect to aging and degradation under X-ray radiation. The developed technology grantee that tungsten alloy foil thickness can be produced down to below 100μm. In Geiger-Mueller radiation detector, which the tungsten alloy foil has a thickness between about 1 and 2 mils.  

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