Bewise Inc. www.tool-tool.com
Reference source from the internet.
They sell mainly the cutting tools of the alumina system and Silicon nitiride system in the ceramic cutting tool market. The one of the alumina system has a disadvantage that it is weak to the characteristic of the impact, although it is excellent in abrasion resistance, so one of the Silicon nitride which has excellent mechanical and thermal properties has been developed recent years and be input the market of the world.
It is necessary to add the sintering additives such as alumina and magnesium oxide, because the Silicon nitride is not able to be sintered in itself.
Silicon nitride cutting tool is applied to more such high speed cutting that the edge of a blade of the tool becomes a high temperature, because the mechanical characteristic such as the bending strength and hardness are excellent in comparison with cemented carbide and cermet even at the high temperature.
Furthermore, the Silicon nitride is reacted with the steel during the cutting of steel, the silicon nitride cutting tool is used only in the field where processes the cast iron product.
SEM of Silicon Nitride
SEM photo of Silicon Nitride
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Bewise Inc. www.tool-tool.com
