A method of magnetorheological polishing

Abstract

The invention discloses a method and equipment for magnetorheological polishing. Including winding the coil on the iron core; according to the shape and size of the polished workpiece, designing different shapes of magnetorheological polishing liquid containers, or placing the magnetorheological polishing liquid on the polishing side of the workpiece; The iron core is flexibly assembled on the outside of the magnetorheological polishing liquid container, or integrated into a polishing mechanism and placed on the polishing side of the workpiece, equipped with measures to adjust the magnetic field strength to generate magnetic fields of different strengths; the magnetorheological polishing liquid containing abrasives, Under the action of magnetic fields of different intensities, a flexible self-adaptive solid with adjustable magnetic saturation induction and shear yield strength is formed, which acts on the inner or outer surface of the workpiece, and causes the surface of the workpiece to be in contact with the magnetic current due to the different surface morphology of the workpiece. The distance between variable polishing solids is different, but the purpose of polishing and grinding with the same intensity.

Description

technical field [0001] The invention relates to a method for selectively, multifaceted and multidimensionally polishing the surface of a workpiece. Specifically, the present invention relates to a method of controlling the presence / absence, strength / weakness, and location of the magnetic field to correspondingly adjust the solid / liquid change of the magnetorheological polishing fluid, the magnetic saturation induction intensity and the shear yield strength. Changes, and the flexible self-adaptive solid formed by magnetorheological polishing fluid under the action of a magnetic field, a method for polishing the surface of workpieces with different shapes with the same intensity. It belongs to the technical field of polishing. Background technique [0002] Magnetorheological fluid is composed of ferromagnetic particles, carrier fluid and additives. Under the action of a magnetic field, the ferromagnetic particles are polarized and arranged, making the magnetorheological flui...

AI Technical Summary

Problems solved by technology

That is to say, the magnetorheological polishing fluid under the action of the magnetic field does not move, and its polishing is realized by the movement of the workpiece, which does not make the smart material of the magnetorheological fluid play its rheological role; relying on the workpiece to do multiple The movement of the degree of freedom has poor controllability to the polishing of the workpiece; at the same time, the mechanism for making the workpiece move with multiple degrees of freedom is relatively complicated, and the multi-dimensional movement speed is generally slow, which increases the cost of equipment manufacturing and the polishing efficiency is not high

This group of inventions only understood and applied one aspect of whether the magnetic field affects the solid / liquid change of the magnetorheological polishing fluid, and did not really understand and use the practical value of the magnetorheological polishing fluid as an intelligent material, thus limiting the application of this technology Applications

[0007] Patent CN103612162A discloses a magnetorheological fluid curved surface polishing system. This invention is a better application of magnetorheological polishing technology, but different polishing systems must be manufactured for different workpieces, especially the curved surface of the polishing shaft must be consistent with the Throwing workpiece correspondence, which limits its versatility

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