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Abrasive particle cutting thickness distribution solution method and application method of abrasive particle cutting thickness distribution solution in grinding process design

A technology of grinding amount and abrasive particles, applied in the field of grinding, can solve the problems of difficult optimization and difficult to achieve results, etc.

Active Publication Date: 2018-07-06
HUAQIAO UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] On the other hand, the optimization of the traditional grinding process is carried out according to the given grinding wheel, which is very difficult to optimize the grinding process, and it is difficult to achieve the desired effect

Method used

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  • Abrasive particle cutting thickness distribution solution method and application method of abrasive particle cutting thickness distribution solution in grinding process design
  • Abrasive particle cutting thickness distribution solution method and application method of abrasive particle cutting thickness distribution solution in grinding process design
  • Abrasive particle cutting thickness distribution solution method and application method of abrasive particle cutting thickness distribution solution in grinding process design

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Embodiment 1

[0053] The following describes in detail the method for solving the abrasive particle cutting thickness distribution in conjunction with the accompanying drawings:

[0054] Adopt grinding wheel parameters: grinding wheel diameter ds=300cm, width 10cm, abrasive grain parameters are expressed by a distribution function, particle size, position and height of the cutting edge are all normal distribution, the distribution parameters are: particle size N (550, 0.25), position N (0.1 , 0.4) and the blade height N (67, 0.15), the grinding amount is: grinding speed vs=78m / s, feed speed vw=15m / min, and grinding depth is 8um.

[0055] Step A. Build a digital grinding wheel: express the abrasive parameters on the surface of the grinding wheel as a matrix {G jk } p×q , P×q means that the matrix {Φ} is a matrix of p rows and q columns, that is, the outer circle of the grinding wheel has p rows and q columns of abrasive grain distribution. In this embodiment, p=9000, q=20; element G jk Represents...

Embodiment 2

[0073] This embodiment details the specific implementation method of applying a method for solving the distribution of abrasive grain cut thickness to the design of the grinding process:

[0074] In this embodiment, the grinding tool is a grinding wheel, and the grinding process is designed with the goal of obtaining a good processed surface quality. The workpiece is 45# steel, and the surface roughness Ra of the machining result is expected to be less than 0.4um. The user has given a wheel diameter of 400mm and a width of 15m. The estimated grinding quantity is: grinding speed vs=100m / s, feed speed vw=10m / min, and grinding depth is 5um. The standard value is set to be less than 10% in the cut thickness distribution error of the two abrasive grains.

[0075] Step 1: Set the target abrasive grain cutting thickness distribution according to the processing result, such as Figure 5 As shown in distribution A.

[0076] Step 2: According to the method for solving the abrasive grain cut...

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Abstract

The invention discloses an application method of abrasive particle cutting thickness distribution solution in grinding process design. A solution method comprises the steps that A, a digitized grinding wheel is established; B, an abrasive particle track outline is calculated; C, a workpiece is dispersed; and D, abrasive particle cutting thickness distribution is calculated. The application methodof the method applied to the grinding process design specially comprises the steps that the target abrasive particle cutting thickness distribution is set according to a machining result; next, optimal grinding wheel abrasive particle parameters are obtained according to the target cutting thickness distribution constraint; then, by means of the optimal grinding wheel abrasive particle parameters,an actual grinding wheel is prepared and measured, and abrasive particle parameters of the actual grinding wheel are obtained; and finally, the actual grinding wheel abrasive particle parameters areinput and combined with a machining result, and grinding amount optimization is carried out. Grinding machining is carried out by matching the actual grinding wheel manufactured through the optimal parameters and the optimal grinding amount, and an expected machining result can be efficiently achieved with high quality and low cost.

Description

Technical field [0001] The invention relates to the field of grinding. Background technique [0002] Grinding is the main processing method for parts with high dimensional accuracy and high surface quality, and is an important part of advanced manufacturing technology. The control of the grinding process and the accurate prediction of the machining results are very important to high-efficiency precision grinding technology. Grinding is a processing method in which a large number of abrasive particles are controlled by a binder to realize micro-cutting, and then remove the workpiece material from the macroscopic view. In other words, the grinding process is the removal of the material on the tool at the macro level. At the micro level, each abrasive grain is actually cut. Therefore, the cutting thickness value of each abrasive grain has always been the key control quantity for the grinding process and grinding result. [0003] At present, the industry mainly uses the maximum unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B1/00
CPCB24B1/00
Inventor 徐西鹏黄国钦方从富崔长彩黄辉张玉周
Owner HUAQIAO UNIVERSITY
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