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Method for analyzing scratch of hard and brittle materials on basis of trochoidal feed tracks

A technology of hard and brittle materials and analysis methods, applied in analysis materials, measuring devices, instruments, etc., can solve the problems of increasing the number and cost of customized abrasive tools, reducing the repeatability and utilization rate of tools, and achieving great scientific research value, The effect of a close logical relationship

Active Publication Date: 2018-10-09
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Affected by the number of abrasive grains, the distance between abrasive grains and the arrangement of abrasive grains, the number and cost of customized abrasive grain tools are greatly increased, and the selection of experimental parameters also reduces the repeatability of the tool.

Method used

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  • Method for analyzing scratch of hard and brittle materials on basis of trochoidal feed tracks
  • Method for analyzing scratch of hard and brittle materials on basis of trochoidal feed tracks
  • Method for analyzing scratch of hard and brittle materials on basis of trochoidal feed tracks

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Embodiment Construction

[0024] In order to make the purpose, technical solutions and advantages of the implementation examples of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described implementation examples are part of the present invention, not all. All other embodiments without creative work in this field belong to the protection scope of the present invention.

[0025] The hard and brittle material scratch experiment method based on the trochoidal feed track of the present invention comprises the following steps:

[0026] (1) Preparation of the pressure / scratcher: fix the scratch head with abrasive grains on the end face of the cutter head, the geometric shape and size of the abrasive grains, the angle of the abrasive grain grinding edge, the radius of the grinding edge, and the fixation of the scratch head The orientation and density are determined according t...

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Abstract

The invention discloses a method for analyzing scratch of hard and brittle materials on the basis of trochoidal feed tracks. The method includes acquiring test pieces with trochoidal scratch; dividingtrack line distribution regions of the test pieces; extracting experimental factor representation information of 'point', 'line' and 'plane' critical regions according to particular experimental schemes by the aid of corresponding observation equipment by reference to track line division rules; integrating related theories such as theoretical mechanics and fracture mechanics with one another, combining information acquired by trochoidal scratch track critical region equipment and analyzing correlations between experimental factors and material damage and material removal mechanisms. Divisionrules for the track line distribution regions are plane space geometric relations among 'points', 'lines' and 'planes'. The experimental factor representation information of the 'point', 'line' and 'plane' critical regions is related to the material damage and material removal mechanisms. The method has the advantage that the method is a complete and efficient method with close logic relations andaccordingly has a great scientific research value in the aspect of research on hard and brittle material removal mechanisms.

Description

technical field [0001] The invention belongs to the field of processing of hard and brittle materials, and in particular relates to a scratch analysis method for hard and brittle materials based on a trochoidal feed trajectory. Background technique [0002] Due to a series of excellent properties such as high hardness, wear resistance and corrosion resistance, hard and brittle materials are widely used in national defense, military industry, aerospace, electronic communication and other fields. In order to give full play to the excellent properties of hard and brittle materials, high-quality machined surfaces must be guaranteed. At present, the main processing methods for hard and brittle materials include: grinding method, chemical corrosion processing method and grinding processing. However, the grinding method can only cut off an extremely thin layer of material, and the processing efficiency is very low. Corrosive liquid and steam from chemical corrosion processing wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/00
CPCG01N3/00G01N2203/0032
Inventor 林彬赵菲菲隋天一张晓峰何远平王安颖
Owner TIANJIN UNIV
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