Diamond turning of freeform surfaces using non-zero rake angle tools

Zuo, Chengming; Meng, Guangwei; Zhou, Xiaoqin; Liu, Qiang; Jiang, Shan; Zhang, Xu; Xu, Pengzi; Zhang, Yunhui; Zhang, Xiuzhi; Yan, Guan

doi:10.1007/s00170-021-07890-x

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…The Archimedes spiral method is widely used to generate toolpaths for ultraprecision machining. Zuo et al proposed a toolpath planning method for ultra-precision turning of freeform surfaces using non-zero rake angle tools and constructed a morphology prediction model for the ultra-precision turning of freeform surfaces [30]. Zhou et al used the constant arc length strategy to sample an Archimedes helix to generate toolpaths and proposed a tool tip radius compensation method to improve the contour accuracy of the machined surface [31].…”

Section: Introductionmentioning

confidence: 99%

A Toolpath Planning Method for Optical Freeform Surface Ultra-Precision Turning Based on NURBS Surface Curvature

Wang,

Bai,

Gao

et al. 2023

Machines

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As the applications for freeform optical surfaces continue to grow, the need for high-precision machining methods is becoming more and more of a necessity. Different toolpath strategies for the ultra-high precision turning of freeform surfaces can have a significant impact on the quality of the machined surfaces. This paper presents a novel toolpath planning method for ultra-precision slow tool servo diamond turning based on the curvature of freeform surfaces. The method analyzes the differential geometric properties of freeform surfaces by reconstructing NURBS freeform surfaces. A mathematical model is constructed based on the parameters of different positions of the freeform surface, toolpath parameters, and tool residual height. Appropriate toolpath parameters can be calculated to generate the optical freeform ultra-precision slow tool servo diamond turning toolpath. Compared with the toolpaths generated by the traditional Archimedes spiral method, the ultra-precision slow tool servo diamond turning toolpath planning method proposed in this paper can generate more uniform toolpaths on the freeform surfaces and keep the residual tool height within a small range.

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Section: Introductionmentioning

confidence: 99%