Vitrified bond cubic boron nitride (CBN) grinding wheel for grinding titanium alloy

A ceramic bond and cubic boron nitride technology, applied in the field of grinding tools, can solve the problems of poor grinding performance of titanium alloys, easy formation of hard and brittle surface layers on the surface, difficult control of grinding quality, etc., and achieve grinding costs. Low, high grinding efficiency, good self-sharpening effect
CN103223644AActive Publication Date: 2013-07-31TIANJIN UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV
Publication Date
2013-07-31

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Abstract

The invention discloses a vitrified bonded cubic boron nitride (CBN) grinding wheel for grinding titanium alloy, which comprises a basal body, grinding wheel blocks and bonding layers, wherein the grinding wheel blocks comprise the following raw materials in weight percentage: 40-80 percent of cubic boron nitride grinding material, 0-30 percentage of silicon carbide, 14-35 percent of ceramic binder and 6 percent of temporary binder; and the ceramic binder comprises the following raw materials in weight percentage: 15-25 percent of B2O3, 8-15 percent of Al2O3, 46-60 percent of SiO2, 2-8 percent of Li2O, 2-10 percent of Na2O, 2-10 percent of ZnO and 2-10 percent of AlN, and the refractoriness of the ceramic binder is lower than 700 DEG C. The vitrified bound cubic boron nitride grinding wheel can effectively overcome the defects of strong grinding force, high grinding temperature, serious grinding wheel bonding and the like caused during grinding the titanium alloy, and has the advantages of high thermal conductivity, good self-sharpening performance, high grinding efficiency, long service life, low cost and simple process.
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Description

technical field

[0001] The invention relates to grinding tools, in particular to a vitrified bond cubic boron nitride (CBN) grinding wheel for titanium alloy grinding. Background technique

[0002] Titanium alloy has the advantages of low density, high strength (higher strength at room temperature and high temperature), high specific strength, high temperature resistance, good corrosion resistance, matching with composite material structure, high toughness, and non-magnetic. It has been used more and more in many fields such as aviation, aerospace, nuclear energy, ships, weapons, etc., and has become an important strategic metal material. Its application level has become an important indicator to measure the advanced degree of a country's weaponry and reflect a country's military level and military strength. However, for titanium alloys, poor processability and low processing efficiency have become the main reasons hindering its widespread application.

[0003] In the earl...

Claims

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