A method for preparing a micro-bristle structure diamond grinding wheel with positive rake angle of abrasive grains and a diamond grinding wheel obtained thereby

By forming a positive back angle and micro-comb structure of abrasive grains on the surface of a diamond grinding wheel, and using electroplating and pulsed laser technology to achieve orderly arrangement and efficient processing of abrasive grains, the problems of high grinding force, low efficiency and subsurface damage during grinding are solved, thus improving grinding quality and efficiency.

CN120326537BActive Publication Date: 2026-07-14SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Filing Date
2025-05-23
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing diamond grinding wheels suffer from uneven abrasive distribution, high grinding force, increased grinding temperature, low grinding efficiency, and subsurface damage to the workpiece when grinding hard and brittle materials. Traditional mechanical dressing methods are prone to wear and low processing efficiency.

Method used

Pulsed laser processing technology is used to form abrasive grains with a positive back angle and micro-comb structure on the surface of diamond grinding wheel. The orderly arranged abrasive grains are prepared by electroplating, and the tangential dressing and micro-comb structure processing are performed by a pulsed laser system. The laser overlap rate is controlled to achieve uniform distribution of abrasive grains and efficient processing.

Benefits of technology

It improves grinding quality and efficiency, reduces grinding force and temperature, reduces subsurface damage to workpieces, enhances the bonding strength of abrasive grains and the number of grinding edges, and improves the surface integrity of materials.

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Abstract

The application discloses a kind of micro comb tooth structure diamond grinding wheel with abrasive positive rake angle and the preparation method of obtained diamond grinding wheel, comprising the following steps: step 1, the circumferential surface of grinding wheel matrix is prepared by precise milling and is formed in a certain array of groove with ordered arrangement, and diamond abrasive is directionally bonded in groove using conductive glue;Mechanical consolidation of abrasive is realized by depositing nickel-cobalt alloy through pulse plating method;Step 2, the grinding wheel obtained in step 1 is shaped by pulse laser system, and effective control of grinding wheel outer circle runout is realized;Step 3, the abrasive positive rake angle of grinding wheel obtained in step 2 is formed;Step 4, micro comb tooth structure processing is carried out on the grinding wheel in step 3.
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Citation Information

Patent Citations

  • CN105728961B

  • CN107520770A

  • CN109333385B

  • CN118106898A

  • CN105728961A