Investigation of an Influence Function Model as a Self-Rotating Wheel Polishing Tool and Its Application in High-Precision Optical Fabrication

A new and patented polishing tool (ZL2020102387137) called a Self-rotating Wheel Polishing Tool (SWPT) was built, and its tool influence function (TIF) was investigated in this study. The polishing wheel is an innovative two-layer structure: a rigid hub inside and a flexible polishing pad outside. B...

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Bibliographic Details
Published in:Applied sciences 2022-04, Vol.12 (7), p.3296
Main Authors: Yao, Yongsheng, Li, Qixin, Ding, Jiaoteng, Wang, Yongjie, Ma, Zhen, Fan, Xuewu
Format: Article
Language:English
Subjects:
Accuracy
Aluminum alloys
Fabrication
Finite element analysis
Form accuracy
Friction resistance
high precision
Influence functions
optical fabrication
Polishing
Pressure distribution
Robots
Rotation
Sliding friction
tool influence function
Velocity
wheel polishing tool
Workpieces
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Summary:A new and patented polishing tool (ZL2020102387137) called a Self-rotating Wheel Polishing Tool (SWPT) was built, and its tool influence function (TIF) was investigated in this study. The polishing wheel is an innovative two-layer structure: a rigid hub inside and a flexible polishing pad outside. By using finite element analysis, the dynamic contact characteristics between the polishing wheel and the workpiece were studied, and the theoretical TIF was modeled. Due to the influence of friction resistance, the TIF is not circular, but oval. We then ran material removal experiment, and it was found that the experimental TIF and the theoretical TIF are very close and both are close to the Gaussian shape. Finally, optical fabrication was performed. After four times of about 3 h fabrication, the form error converged from PV-1.434λ (λ = 632 nm), RMS-0.308λ to PV-0.144λ, RMS-0.009λ, and PV and RMS converged by 90% and 97%, respectively. The form accuracy achieved the expected target of RMS-0.02λ, which proves that the SWPT has the characteristics of high convergence rate and high fabrication accuracy. The SWPT has a broad application prospect in the field of high-precision optical fabrication.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12073296