Preparation method of diamond grinding wheel with orderly-arranged crystal orientation abrasives

A diamond grinding wheel and crystal orientation technology, used in metal processing equipment, grinding/polishing equipment, grinding devices, etc., can solve the problem that the geometric size of diamond abrasive grains, the height of the cutting edge are difficult to keep consistent, and the diamond grinding wheel is difficult to meet the processing of precision grinding requirements, low efficiency of grinding wheel preparation, etc., to achieve the effect of improving cutting performance and service life, excellent crystal shape and less impurities

Active Publication Date: 2020-11-17
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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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 ab

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  • Preparation method of diamond grinding wheel with orderly-arranged crystal orientation abrasives
  • Preparation method of diamond grinding wheel with orderly-arranged crystal orientation abrasives
  • Preparation method of diamond grinding wheel with orderly-arranged crystal orientation abrasives

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Embodiment Construction

[0023] The implementation method of the present invention will be further described below in conjunction with the accompanying drawings and specific examples.

[0024] A method for preparing a diamond grinding wheel in which crystal oriented abrasives are arranged in order comprises the following steps.

[0025] Step 1. Preparation of the shape-controlling film 11: the material of the substrate 1 is titanium alloy, the diameter is Φ 100 mm, and the thickness is 10 mm, and a film 8 matching the size of the substrate 1 is prepared according to the circumference and thickness of the substrate 1. The film 8 is made of polyimide with a thickness of 0.5 mm, has good thermal stability, and can be hydrolyzed by alkali. The cleaned and dried film 8 is evenly pasted on the glass substrate 7 , and a positive photoresist 9 is coated on the film 8 . The mask 10 with the same shape and pattern as the micro-grinding unit 3 is used for exposure and development, so that the pattern of the mask ...

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Abstract

The invention discloses a preparation method of a diamond grinding wheel with orderly-arranged crystal orientation abrasives. The preparation method comprises the following steps that a shape controlfilm is prepared by adopting a photoetching technology and adhered to the outer circumferential surface of a substrate, and diamond micro-powder is uniformly sprayed as diamond seeds for subsequent deposition; a layer of amorphous carbon is deposited on the diamond seeds by adopting an EACVD technology, and crystal orientation is performed on subsequently synthesized diamond abrasive particles; deposition parameters are adjusted, nucleation growth is performed on the abrasive particles to form diamond abrasive particles with {100} crystal surfaces as the top surfaces, {111} crystal surfaces asthe side surfaces and larger exposure heights, a micro grinding unit is formed by the diamond abrasive particles, the amorphous carbon and a diamond bonding layer, and a plurality of micro grinding units are orderly arranged according to a photoetching pattern of the shape control film; and the shape control film is removed through ultrasonic cleaning, gaps between a large number of micro grinding units are micro flow channels, and a grinding wheel finished product is obtained through drying. According to the preparation method, crystal orientation can be performed on the diamond abrasive particles, the abrasives can be arranged orderly, and the grinding performance of the grinding wheel is remarkably improved.

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...

Claims

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Application Information

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IPC IPC(8): B24D18/00C23C16/44C23C16/04C23C16/26
CPCB24D18/009C23C16/042C23C16/26C23C16/44
Inventor 毛聪张德嘉胡永乐李长河隆鹏刘超王佳丽唐伟东
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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