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

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...

AI Technical Summary

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 quality fluctuation also affects the stability of the grinding process, and due to the generation of a large number of grinding residues, the amount of grinding fluid to be filtered and cleaned is increased, causing certain pollution to the environment

With the emergence and development of CNC special grinding machines, there is also a lack of suitable grinding tools

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