Now, tungsten carbide indexable cutting tools are using chemical vapor deposition method to depositing titanium carbide, titanium nitride, alumina hard layer or composite hard layer. The developping physical vapor deposition method not only can be used for the carbide cutting tools, but also can be used for high speed steel cutting tools, like drill bits, hobbing cutter, screw tap, milling cutter and so on. As a barrier for chemical diffusion and heat conduction, hard coating makes cutter-wear rate slower. Compared with no coating blade, the life of coating blade may improve more than 1-3 times.

Due to the application in high temperature, high pressure, high speed, and corrosive fluid medium parts, it is more and more difficult to machine materials, and the increasing demands for the automatic level of cutting process and machining precision. In order to adapt to this situation, the manufacturer should do something as follows: first of all, the development direction of cutting tools will use the new cutting tool matrials; second, to further develop vapor deposition technologies of cutting tool and higher hardness of the coating on the high strength and high wear resistance base would solve the problem between hardness and strength of cutting tools;third, to further develop the structure of tungsten carbide indexable cutting tools; fourth, to omprove the machining precision and reduce the difference between the product’s quality to make the use of cutting tools realize optimization.


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1.Clean
Cleaning both the weld joint area and the filler metal is an important preparation. Remove all oil, grease, dirt, paint, etc. The presence of these contaminants may result in arc instability or contaminated welds.
2.Clamp
Clamping may be required if the work piece cannot be supported during welding.
3.Tack weld
Make short 1/4 in. tack welds along the work pieces to hold them together.

Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Tubgsten carbide circular saw blades are sized to fit not only in industrial machinery but also in standard table saws and hand-held circular saws.

The most common tungsten carbide circular saw blades are not solid tungsten carbide; their body is typically tempered steel and only the cutting edges of the teeth are coated with tungsten carbide. A variation of the toothed saw blade is the grinding "wheel" or abrasive blade---still circular but without teeth.

Their edge is coated with tungsten carbide and used to exert abrasive force as they grind through stone, ceramics and metal.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
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Email: sales@chinatungsten.com
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Tungsten carbide has a variety of uses due to its unique physical properties. Its molecular formula is WC, and it is very similar in nature to titanium carbide. Since it does contain two different elements, it is classified as a chemical compound.

Melting Point
Tungsten carbide has an extremely high melting point at 5,200 degrees Fahrenheit.

Hardness
Tungsten Carbide falls between 8.5 to 9.0 on Moh's hardness scale, making it almost as hard as diamond.

Military Uses
The military makes armor piercing ammunition out of tungsten carbide.

Sports Uses
Ski poles sometimes use tungsten carbide to reduce the impact on the skier's legs.

Everyday Uses
Many jewelers use tungsten carbide to create wedding bands for men.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.tungsten-carbide.com.cn
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
Tungsten Picture Center: http://picture.chinatungsten.com
Tungsten Video Center: http://v.chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com