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Electrostatic atomization milling fog drop transportation modeling and transportation effect evaluation method

An electrostatic atomization and evaluation method technology, applied in the field of milling processing, can solve the problems of slow calculation speed, difficult droplet diameter measurement, difficult to truly reflect the movement of the number of droplets, etc., and achieve the effect of simple and efficient convergence of the modeling process

Active Publication Date: 2019-08-06
JIANGSU UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the modeling of electrostatic atomized droplet transport between the nozzle and the static plate electrode has been researched, there are the following problems: (1) the two-way coupling method is used for modeling, the calculation speed is slow, and it is difficult to expand to three dimensions; (2) The droplet packaging technology used (each package is a collection of a certain number of droplets) uses the movement of the droplet package to represent the movement of all the droplets in the entire package, which is difficult to truly reflect the movement of a huge number of droplets; (3) need to carry out Difficult to implement droplet diameter measurements, making modeling inconvenient and limiting applicability
Therefore, so far, there has been no public report on the modeling and evaluation methods of droplet transport in electrostatic atomization milling.

Method used

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  • Electrostatic atomization milling fog drop transportation modeling and transportation effect evaluation method
  • Electrostatic atomization milling fog drop transportation modeling and transportation effect evaluation method
  • Electrostatic atomization milling fog drop transportation modeling and transportation effect evaluation method

Examples

Experimental program
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Embodiment

[0054] Take the electrostatic atomization milling of uncoated carbide milling cutters manufactured by SANDVIK as an example.

[0055] In the first step, establish as figure 1 In the 3D milling model shown, the solution domain is the torus-like region between the milling cutter and the nozzle. Such as figure 2 As shown, in order to facilitate analysis and calculation, the model is divided into three parts A, B, and C. Area A is a small ring close to the wall of the milling cutter, which is a rotation domain; area B is a large ring far away from the wall of the milling cutter. body, this part is the static area; area C is the target area (the area that needs to be cooled and lubricated according to the processing conditions), which can be used to count the droplets entering this area. A and B form an assembly, and C and A form a union. The modeling parameters of electrostatic atomization milling droplet transport in this embodiment are shown in Table 1.

[0056] Table 1 Mod...

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Abstract

The invention discloses an electrostatic atomization milling fog drop transportation modeling and transportation effect evaluation method. The method comprises the following steps: establishing a three-dimensional milling model, importing the model into simulation software, carrying out mesh generation, calculating an airflow field caused by high-speed rotation of a milling cutter, calculating anelectrostatic field, measuring physical parameters of lubricating oil, measuring atomization current, calculating necessary initial parameters of fog drop track simulation, calculating a fog drop track, and carrying out post-processing and evaluation on a simulation result. The influence of rotation of the milling cutter on fog drop transportation during electrostatic atomization milling is fullyconsidered, the electrified fog drop group transportation track during electrostatic atomization milling can be effectively predicted, the fog drop transportation effect is evaluated, and a basis is provided for optimization and selection of electrostatic atomization parameters.

Description

technical field [0001] The invention belongs to milling processing technology, and in particular relates to a method for modeling and evaluating transport effect of electrostatic atomization milling droplets. Background technique [0002] With the improvement of environmental protection and sustainable development awareness, green cutting technology has attracted more and more attention. Minimal Quantity Lubrication (MQL) is to mix and atomize a very small amount of lubricating oil with compressed air with a certain pressure, spray it into the processing area, and implement cooling and lubrication on it. Compared with traditional wet cutting, the advantages of minimal lubrication are mainly reflected in: 1. Lubricating oil is supplied in the form of high-speed mist particles, which enhances the permeability of lubricating oil during processing, improves cooling and lubrication effects, and reduces cutting temperature and cutting temperature. 2. The amount of lubricating oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T17/00
CPCG06T17/00G06F30/17G06F30/20
Inventor 苏宇俞童赵礼刚刘宏西刘志强
Owner JIANGSU UNIV OF SCI & TECH
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