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What are the characteristics of titanium based alloy and ceramic cutting tools in precision parts processing

December 24, 2022

What are the characteristics of titanium based alloy and ceramic cutting tools in precision parts processing
With the continuous development of the modern machining industry, the performance of ordinary tools in the process of precision parts processing is increasingly unable to meet the actual needs, so a batch of new tools with new materials have been born, making the tools have higher strength, hardness and wear resistance. Among them, titanium based alloys and ceramic materials are the best.

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Carbon and titanium nitride based cemented carbides are mainly composed of TiC, TiN, and other carbides or oxides, with nickel and molybdenum as binders. Its main advantages are high hardness, good oxidation resistance, small friction coefficient, difficult chip bonding, good abrasion resistance against crescent pits, and low relative density. It is called "cermet" abroad, and is suitable for high-speed finishing and semi finishing of steel parts. At present, it is suitable for milling and manufacturing of integral milling cutter.

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Ceramic materials have higher hardness and heat resistance than cemented carbide. They can still be cut at 1200 ° C, with good wear resistance and chemical inertness, small friction coefficient, and strong resistance to adhesion and diffusion wear. Therefore, they can be cut at a higher speed in precision parts processing. Ceramic materials are stronger than cemented carbide materials. In order to make up for the shortcomings of ceramic materials such as low bending strength, brittleness and poor stamping resistance, the ceramic cutting edge often grinds a 20 ° negative chamfer, and the thickness and tip arc of the blade are slightly larger than those of cemented carbide inserts of the same size.