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A non-Newtonian fluid thickening polishing method and polishing system based on magnetic field assistance

A non-Newtonian fluid, magnetic field-assisted technology, applied in the field of polishing methods and polishing systems, can solve the problems of weakened thickening effect, narrow thickening area, and low polishing efficiency, and achieves improved processing efficiency, uniform magnetic field intensity distribution, and adaptability. strong effect

Active Publication Date: 2020-06-05
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because shear thickening polishing has strict requirements on motor speed and torque parameters, and at the same time, the area where severe thickening occurs is narrow, the thickening effect is weakened with the improvement of surface quality, resulting in low polishing efficiency

Method used

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  • A non-Newtonian fluid thickening polishing method and polishing system based on magnetic field assistance
  • A non-Newtonian fluid thickening polishing method and polishing system based on magnetic field assistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The polishing method based on magnetic field-assisted non-Newtonian fluid thickening of the present embodiment comprises the following steps:

[0034] S1: Fix the polishing liquid tank 1 on the workbench 14, add the non-Newtonian fluid polishing liquid with magnetorheological properties into the polishing liquid tank 1, and then use the clamping device 20 with a driving system to soak the polished workpiece 2 in the above-mentioned In the non-Newtonian fluid polishing fluid, and open the magnetic field generator 6, the viscosity of the non-Newtonian fluid polishing fluid is increased;

[0035] S2: under the action of the above-mentioned drive system, the clamping device 20 drives the polishing workpiece 2 to rotate so that the polishing workpiece 2 and the non-Newtonian fluid polishing liquid undergo relative motion, and the abrasive grains in the non-Newtonian fluid polishing liquid cut the surface of the polishing workpiece 2, That is, the polishing process is complet...

Embodiment 2

[0046] The polishing method based on magnetic field-assisted non-Newtonian fluid thickening of the present embodiment comprises the following steps:

[0047] S1: Fix the polishing liquid tank 1 on the workbench 14, add the non-Newtonian fluid polishing liquid with magnetorheological properties into the polishing liquid tank 1, and then use the clamping device 20 with a driving system to soak the polished workpiece 2 in the above-mentioned In non-Newtonian fluid polishing fluid;

[0048] S2: Turn on the polishing liquid circulation system 11 for controlling the stability of the non-Newtonian fluid polishing liquid in the polishing liquid tank 1;

[0049] S3: Turn on the magnetic field generating device 6 to increase the viscosity of the non-Newtonian fluid polishing solution;

[0050] S4: Under the action of the above-mentioned driving system, the clamping device 20 drives the polishing workpiece 2 to rotate so that the polishing workpiece 2 and the non-Newtonian fluid polishi...

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Abstract

The invention discloses a non-Newtonian fluid thickening polishing method based on a magnetic field assist. The method comprises the following steps: S1: adding non-Newtonian fluid polishing liquid with magnetorheological properties into a polishing liquid tank, and immersing a polishing workpiece in the non-Newtonian fluid polishing liquid through a holding device with a driving system, and turning on a magnetic field generating device; S2: under the action of the driving system, driving the polishing workpiece to rotate by the holding device, enabling the polishing workpiece and the non-Newtonian fluid polishing liquid to move relative to each other, and cutting the surface of the polished workpiece by abrasive grains in the non-Newtonian fluid polishing liquid, thereby completing the polishing process. The invention further correspondingly provides a non-Newtonian fluid thickening polishing system based on the magnetic field assist. The non-Newtonian fluid thickening polishing method provided by the invention is low in consumables cost, high in polishing efficiency and good in polishing effect, and can realize ultra-precision polishing of the polished workpiece.

Description

technical field [0001] The invention belongs to the field of ultra-precision machining, and in particular relates to a polishing method and a polishing system. Background technique [0002] Complex curved surfaces such as free-form surfaces and aspheric surfaces have been gradually used in the design of parts in many application fields such as aerospace, optical systems, power machinery components, and biomedical molds. High-precision surfaces are of great significance to various equipment: for example, effectively improving the life and reliability of key components of spacecraft; correcting various aberrations of high-precision aspheric lenses in optical systems, optimizing their identification capabilities, and reducing device costs; improving The surface accuracy of high-precision and complex curved surface parts for vehicles reduces mechanical wear and fully optimizes work efficiency. According to statistics, as many as 30% of mold cavities are designed with free-form ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B1/00
CPCB24B1/005
Inventor 黄向明明阳周志雄
Owner HUNAN UNIV
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