There are various kinds of tungsten heavy alloy products, like tungsten heavy alloy rod, tungsten heavy alloy plate, etc.. This article is talking about tungsten heavy alloy main applications.

Tungsten heavy alloy can be used in many fields due to its excellent properties, such as small capacity but high density. When it comes to tungsten heavy alloy main applications, tungsten heavy alloy could be widely used for different industries and countries in various fields, such as the sports, including golf, fishing, darts, racing cars and others. Tungsten heavy alloy can be used in the medical treatment, like radiation shielding, isotope container, source holder. Tungsten heavy alloy can also be used in the scientific field, like tungsten heat sinks, oil drill, mine exploration and others. Tungsten heavy alloy is also used as a substitution in some military products for Depleted Uranium.

For its high melting point, tungsten heavy alloy is usually used in high temperature fields. Tungsten heavy alloy is friendly to the environment, so tungsten heavy alloy can be produced into fishing sinker, jig and other products. Due to its special properties, tungsten heavy alloy is very popularly applied in our daily life.


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Mixing tungsten with carbon creates a strong material called tungsten carbide. The material has become increasingly popular in many industries around the globe. Its uses range from construction tools to jewelry to weapons.

Facts
Tungsten's atomic number on the Periodic Table is 74; its atomic symbol is W. The element is highly resistant to bases and acids. Tungsten's melting point of 3,422 degrees Celsius is the highest of any metal. Hard by itself, tungsten becomes even more durable when combined with carbon, as well as nearly scratch resistant.

Uses
Tungsten carbide is used to make cutting tools for metalworking, drilling construction and mining. Its strength makes it a popular material for jewelry, such as rings, bracelets and necklaces. Weapons makers use tungsten carbide to produce armor-piercing ammunition.

Comparisons
Tungsten carbide is a much more versatile material than most other metals. It is four times as hard as titanium and twice as hard as steel. Tungsten carbide is much more heat resistant than both metals as well.

History
Tungsten was discovered in 1758 and first separated from wolframite in 1793. In the 20th century, tungsten carbide became best known as the material for light bulb filaments. Tungsten carbide was widely used in World War II for making weapons.

Sources
Leading producers of tungsten carbide include China and Russia. Canada, Bolivia and the United States have large reserves. Some 30,000 tons of tungsten carbine are produced annually.


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With very sharp cutting edges and slot type, the cutting force of tungsten solid carbide cutting tools is small in aluminium alloy machining, and it also include the advantages of high chip space and smooth chip removal. So gradually the solid tungsten carbide cutting tools replaces of the high speed steel cutting tools.

In addition, the elastic modulus of tungsten carbide is about 3 times of steel, which means that under the same load, the deformation of tungsten solid carbide cutting tools is only a third of indexable cutting tools. As helical tooth end mill, solid tungsten carbide end mill can smoothly cut into and out. Its chip removal is also very smoothly, all of that helps to decrease the fluctuation of cutting force to restrain the vibration trends.

Tungsten solid carbide cutting tools system can bring potential advantage for aluminum rough machining and finish machining, especially the use of 25 to 100 mm medium to large cutting tools. To be used for aluminum alloy processing, tungsten solid carbide cutting tools has better security, versatility,higher metal removal rate and unparalleled performance without grinding again. However, many cases of finish machining can't reach the required level. But now, Sandvik Coromant’s CoroMill790 can achieve this through new cutting edge, blade, blade bearing and the clamping technology.


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Some tungsten carbide end mills that have been used can be reground to use over again. This saves money and can often be done in the shop while a cycle is being run or by another machinist when he has some down time.

Benefits
Regrinding end mills allows them to be reused which can save a machine shop hundreds of dollars a year. Some end mills are used for profiling only and the dull area can be removed and the bottom reground for further use.

Procedure
Cut the used area off using a cut-off saw. Place the end mill in an end mill sharpening holder, which set the end mill at the right angle for regrinding. Grind the bottom of the end mill to achieve a new, sharp edge for bottom cutting using a surface grinder.

Considerations
If you do not have the capabilities to regrind the end mills in your shop, you can have it done professionally. If the price is less than a new end mill, that route would be preferred to buying new end mills.


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1. Attach the diamond wheel to your bench grinder. Refer to your manual to ensure that the wheel is properly attached and the grinder itself is appropriately mounted.

2. Hold your tungsten carbide tool against the rest beneath the wheel. Touch the tip to the wheel, but do not turn on the grinder yet. Adjust the rest as needed so that you achieve the necessary grinding angle for your particular tool. Many rests will allow you to adjust both the height and the angle of the rest.

3. Remove the tool from the rest, then turn on the grinder. Touch the tip of the tool to the moving wheel, just as you did before when determining the angle, and use the rest to guide the angle of the grinding. Carbide may emit short red sparks during grinding. These are normal. The carbide tool may also become very hot. Work in short intervals and do not burn yourself, overheat the tool or touch the tool immediately after grinding. Continue grinding until the tool is sharpened.


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We have known that tungsten alloy can be used in defense and nuclear industries. Otherwise, tungsten alloy can be also adopted in aerospace industry.

With the high melting point, excellent high-temperature and good characteristics of thermal shock resistance and thermal fatigue, tungsten alloy is widely used for high-temperature structural components in aerospace industry. For instance, tungsten copper material can be used for spout, throat insert or vane of rocket and missile.


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Single-Point Tools
A variety of single-point cutting tools are used to make industrial cuts on assembly lines. American Carbide Tool Company makes a straight turning tool, lead angle turning tool, square nose utility tool, cutoff tool, pointed nose utility tool and a round shank boring tool. These tools allow cutters to make cuts at angles from 0 degrees to 90 degrees.

Saw Blades
Carbide-tipped saw blades can be used to cut almost all home building materials. They're used to cut stainless steel, wood, particle board, ferrous and non-ferrous metals, laminates and fiber cement board.

Oscillating Blades
Because of the repetitive nature of the oscillating motion, oscillating blades can be carbide-tipped to prevent the blade from dulling out quickly. Carbide-tipped oscillating blades are most often used to shave down grout and plaster.

Carbide Burs
Welders use carbide burs to grind back and cut into welds. They are manufactured in almost every shank and size you can imagine, from ball-shaped to cone-shaped to the inverted cone.


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The choice of geometry will always affect electrode life, arc starting, weld penetration, and arc shape. Regardless of the geometry selected, the electrode configuration must be tested during welding procedure development. The geometry should be noted as a critical process variable for the weld procedure and held to close tolerances for all subsequent welds.

Electrode Diameter. The best place to start when choosing the electrode diameter is to consult the welding equipment manufacturer's recommendations. While small diameters are easier to arc-start, large diameters accommodate higher amperages and last longer than smaller diameters. However, ifcurrent levels are higher than recommended, the tungsten will deteriorate too rapidly, fall into the weld pool, and contaminate the weld. Conversely, if the current is too low for the electrode diameter, the arc will become unstable.

Electrode Included Angle (Taper). Electrodes for DC welding should be ground longitudinally and concentrically with diamond wheels to an included angle in conjunction with the tip/flat preparation.

A blunt taper with a large included angle results in longer electrode life, better weld penetration, narrower arc shape, and the ability to handle more amperage without eroding. A sharp taper with a small included angle offers less arc wander and a wider, more consistent arc.

Tip (Flat). The shape of the tungsten electrode tip is an important process variable in precision arc welding, because as the flat size increases, so does the chance of arc wander and starting difficulty. However, increasing the flat also improves weld penetration and increases electrode life.

An incorrect, inconsistent flat can cause pointed electrode tips to drop into the weld pool. It also can result in arc instability, reduced electrode life, and changes in arc voltage from one electrode to another.
 

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Tungsten carbide gouge is a very rough wood turning tool that is typically used to create the general shape of the wood stock being turned, but can also be used for fine finishing simply by changing the angle of use.

The tungsten carbide gouge gives the wood turner the opportunity to take more material at once without damaging the gouge or creating skip marks on the stock. The cuts for decorative grooves are also cleaner, reducing sanding after the fact. As with all of the carbide tools, the blades are able to be changed at will, eliminating the need for constantly sharpening the blades.


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Tungsten carbide turning tools offer more flexibility and last longer without sharpening than steel turning tools. Tungsten carbide turning tools have carbide inserts that are mounted to the turning tool. It comes in a variety of different styles for a number of uses.

Rougher
A rougher has a flat carbide-tipped blade that is anchored to the tool with an Allen wrench screw. The rough cutter gets its name from performing the rough shaping of the wood. The carbide tip takes little time to cut through the wood stock and give it its general shape. While typically used for wooden bowl turning, the rougher can be used for roughing out the wood stock of just about anything.

Finisher
A finisher has a round carbide tip that is generally smaller. The finisher is designed to take minimal shaving off of the wood stock to create the final shape of a bowl. The finisher can be used for creating grooves but this is typically a wooden bowl finishing tool only. One advantage to this tool is that the blade can be rotated from a dull portion to a sharp portion, allowing the blade to be used significantly longer.


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