Preparation method of diamond grinding wheel with orderly arrangement of crystal oriented abrasives

Abstract

The invention discloses a method for preparing a diamond grinding wheel in which crystalline directional abrasives are arranged in an orderly manner. The shape-controlled thin film is prepared by photolithography technology, and it is pasted on the outer peripheral surface of the substrate, and the diamond powder is evenly sprayed as the diamond seed for subsequent deposition; a layer of amorphous carbon is deposited on the diamond seed by EACVD technology, which is the diamond for subsequent synthesis. Crystal orientation of the abrasive grains; adjusting the deposition parameters, the abrasive grains nucleate and grow, forming diamond abrasive grains with {100} crystal planes on the top surface, {111} crystal planes on the side surfaces, and a large edge height. The bonding layer constitutes a micro-grinding unit, and multiple micro-grinding units are arranged in an orderly manner according to the photolithographic pattern of the shape-controlling film; the shape-controlling film is removed by ultrasonic cleaning, and the gaps between a large number of micro-grinding units are micro-flow channels. Dry to get the finished grinding wheel. The invention can carry out crystal orientation on the diamond abrasive grains, and enables the orderly arrangement of the abrasive grains, thereby remarkably improving the grinding performance of the emery wheel.

Description

technical field [0001] The invention relates to a method for preparing a diamond grinding wheel, in particular to a method for preparing a diamond grinding wheel in which crystalline directional abrasives are arranged in an orderly manner. [0002] technical background [0003] As a bonded abrasive tool with diamond as abrasive, diamond grinding wheel is widely used in grinding processing, and the manufacturing technology of diamond grinding wheel directly determines the characteristics and structure of the grinding wheel. The quality of performance has a major impact. The traditional diamond grinding wheel uses a bond to fix the abrasive on the working surface of the grinding wheel. This process is random, resulting in irregular and uneven distribution of diamond abrasive grains. The geometric size of each diamond abrasive grain and the blade height And the orientation is inconsistent, thereby reducing the grinding efficiency and grinding quality of the grinding wheel, maki...

AI Technical Summary

Problems solved by technology

This method can effectively improve the grinding performance and service life of the diamond grinding wheel, but the patent can only use submillimeter-level coarse-grained diamond abrasive grains, making it difficult for the diamond grinding wheel to meet the processing requirements of precision grinding; and the physical and chemical analyzer is used in the preparation process The method of placing diamond abrasive grains in the groove one by one makes the preparation efficiency of the grinding wheel extremely low. At the same time, it is difficult to maintain the same geometric size and edge height of the diamond abrasive grains. The traditional brazing method results in a small edge height of the abrasive grains. The efficiency is low, which shows that there are still obvious technical bottlenecks in this method

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