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Basic Information About Boron Nitride Ceramic

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Different Machining Methods of Ceramics


Ceramics have a unique combination of chemical, mechanical, and physical properties. It has high strength, low density, hardness, excellent stiffness, low electric and thermal conductivity, and brilliant corrosion resistance. The manufacturing techniques of ceramics (shape forming, sintering) permit to manufacture of parts of different shapes and sizes with great cost-efficiency. Here are described some of the methods of machining ceramics.

Machining of Ceramics in the Pre sintered State

Traditional machining techniques like milling, drilling, turning may be applied for the ceramic components in the pre-sintered state. Titanium nitride (TiN) coated high-speed steel instruments, Polycrystalline diamond tools, and tungsten carbide tools are used to machining pre-sintered ceramics.

Grinding of Ceramics

Grinding is the most popularly used technique of machining of Ceramics in the sintered state. The operation of grinding involves a revolving abrasive wheel eliminating the material from the surface of the material. The grinding zone is constantly flushed with a fluid coolant, which makes cold the grinding zone, loosens the contact between the wheel and the component surfaces, eradicates the micro-chips (debris) made in the grinding process.

Ultrasonic Machining of Ceramics

Ultrasonic machining (UM) of ceramics is the machining technique employing the action of a slurry comprising abrasive particles flowing between the material and a tool vibrating at an ultrasonic frequency.

Rotary Ultrasonic Machining of Ceramics

Rotary ultrasonic machining (RUM) of ceramics combines the grinding process with the operation of ultrasonic machining. The high-quality Ceramics machining parts made with this technique are much more effective as compared to the others.




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