Ceramic bonding agent cubic boron nitride grinding wheel applied for camshaft grinding processing

A technology of cubic boron nitride and ceramic bond, which is applied in bonded grinding wheels, metal processing equipment, abrasives, etc., can solve the problem of low durability and service life of ordinary abrasive grinding wheels, increased auxiliary time and labor intensity, and increased grinding fluid Filter cleaning volume and other issues to achieve the effect of good self-sharpening, long service life and high production efficiency

Inactive Publication Date: 2008-04-30
TIANJIN UNIV
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Problems solved by technology

The durability and service life of ordinary abrasive grinding wheels are low, and frequent dressing or replacement is required, so the dressing tool wears faster, the auxiliary time and labor intensity increase, which not only affects the production efficiency, but also increases the production cost
In addition, due to the large amount of grinding wheel used, its q

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  • Ceramic bonding agent cubic boron nitride grinding wheel applied for camshaft grinding processing

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the inventive concepts and embodiments of the present invention.

[0016] Cubic boron nitride is the second-hardest material known in the world after diamond, but the chemical stability of diamond and iron group elements is poor, so it cannot be used for grinding most metals and alloys, so cubic boron nitride is suitable for grinding Hardest grinding material for machining most metals and alloys. Cubic boron nitride abrasives not only have high hardness, but also have good thermal stability and chemical inertness. Compared with ordinary abrasives, cubic boron nitride grinding tools can not only solve the processing problems of hard, tough and difficult-to-grind materials, but also meet the needs of new materials. Grinding processing, and the grinding tool has sharp grinding, good wear resistance, small unit wear, good surface quality of the processed workpiece, and high production efficiency. In ...

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Abstract

The invention discloses a vitrified bonded cubic boron nitride grinding wheel for camshaft grinding, which consists of a substrate, a bonding layer and a grinding wheel block, the grinding wheel block is a cubic boron nitride grinding wheel block, cubic borax nitride The raw material components and weight percentage content of the wheel block are: 45-75% cubic boron nitride abrasive, 5-20% corundum, 20-35% vitrified bond; the raw material component and weight percentage content of the vitrified bond are : 50-60% SiO2, 20-30% B2O3, 2-5% Al2O3, 4-15% Na2O, 4-10% K2O. The invention provides a high-efficiency grinding tool with high hardness, high processing precision, long service life, no pollution to the environment, and can be matched with a numerical control grinding machine. Sharp, simple preparation process.

Description

technical field [0001] The invention relates to various engine camshaft processing tools, in particular to a vitrified bond cubic boron nitride (CBN) grinding wheel for camshaft grinding. Background technique [0002] Regardless of various types of engines such as automobile engines, aviation engines, motorcycle engines, and diesel engines, the camshaft is one of the key parts of the engine, and the processing quality directly affects the dynamic characteristics of the engine; at the same time, the camshaft is a kind of The non-circular grinding workpiece has a large machining allowance and the material is difficult to grind, so it has high requirements for grinding accuracy and production efficiency. The durability and service life of ordinary abrasive grinding wheels are low, and frequent dressing or replacement is required. Therefore, the wear of dressing tools is accelerated, and the auxiliary time and labor intensity are increased, which not only affects production effi...

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Application Information

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IPC IPC(8): B24D5/06B24D3/18B24D5/16
Inventor 李志宏朱玉梅
Owner TIANJIN UNIV
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