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Form and Texture Control of Free-Form Surface Polishing

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Abstract:

In this paper, a new type of flexible sub-size polishing tool, and an advanced polishing technique for free-form surface based on the new type of tool will be researched. The configuration of the flexible polishing tool and the method of controlling the multi-DOF precessions of the flexible polishing tool will be introduced. The rectilineal movement along X,Y, Z axis and flirts on two polar coordinates rotational axis of the polishing tool are used to control the form precision and the surface texture of polished surface. This polishing technique is enable to change continuously the polishing pressure and contact area and makes the flexible polishing tool well suited both to control the texture of work-piece surface and to control the form of work-piece surface. The influence functions the flexible polishing tool is near-Gaussian, symmetrical, and lacks the high spatial frequencies and center-zero of removal. The example of multi-DOF precessions polishing for optic spherical and aspherical will be introduced. The results show that the form, the size and the movement mode of the polishing tool will have important effect to polishing quality and multi-DOF precessions polishing can obtain better surface texture quality, form precision and higher polishing efficiency than traditional pole-down polishing for free-form surface.

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Periodical:

Key Engineering Materials (Volumes 304-305)

Pages:

113-117

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.304-305.113

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Online since:

February 2006

Authors:

Shi Ming Ji, Xian Zhang, Li Zhang, Qiao Ling Yuan, Y.H. Wan, Ju Long Yuan

Keywords:

Flexible Polishing Tool, Free-Form Surface Polishing, Surface Form, Surface Texture

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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