Liquid float polishing method taking non Newtonian power law fluid as polishing medium

A power-law fluid and polishing medium technology, applied in the field of ultra-smooth surface polishing of optical components, can solve the problems of large equipment investment, low polishing efficiency, low removal efficiency, etc. Efficient effect
CN108907906AInactive Publication Date: 2018-11-30XIAN TECHNOLOGICAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XIAN TECHNOLOGICAL UNIV
Publication Date
2018-11-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of polishing of super smooth surfaces of optical elements, in particular to a liquid float polishing method taking a non Newtonian power law fluid as a polishing medium. Optical glass is processed with high efficiency, high quality and low cost. According to the technical scheme, the device comprises a pipeline, a polishing head which supplies a liquidin the middle and a worktable. The pipeline conveys a polishing liquid to the center of the polishing head, the polishing liquid is guided into the polishing head through a hydraulic pump and flows through a polishing area between the polishing head polishing surface and a processed workpiece on the worktable, a liquid film formed by the fluid in the polishing area supports the polishing head, thepolishing head achieves a self-balanced state under the action of the liquid, the liquid flows at a certain speed in the polishing area, the fluid has a shear thickening phenomenon under the action of the shearing force, solid particles wrap the polishing particles therein to form a flexible solid abrasive material so as to form a solid-like shape to shear a protruding peak on the processed workpiece, so that the surface of the workpiece is removed.
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Description

Technical field:

[0001] The invention relates to the technical field of ultra-smooth surface polishing of optical elements, in particular to a liquid floating polishing method using a non-Newtonian power-law fluid as a polishing medium. Background technique:

[0002] With the rapid development of the global economy and the advancement and breakthrough of science and technology, the processing and manufacturing of optical components has also achieved good results, especially for today's aerospace manufacturing, national defense and military industry, astronomical exploration, and civilian enterprises. All indicators have put forward higher and higher requirements. How to achieve high-efficiency, high-quality, and low-cost processing of optical components is the goal pursued in the field of ultra-precision processing.

[0003] At present, based on the traditional processing foundation, relatively mature ultra-precision processing technologies have emerged, such as magnetorheo...

Claims

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