| Issue |
J. Eur. Opt. Society-Rapid Publ.
Volume 21, Number 2, 2025
|
|
|---|---|---|
| Article Number | 37 | |
| Number of page(s) | 9 | |
| DOI | https://doi.org/10.1051/jeos/2025031 | |
| Published online | 06 August 2025 | |
Research Article
A new tooling system for corrective finishing of narrow cylindrical optics
1
Department of Mechanical Engineering, IIITDM Kurnool, Kurnool 518007, India
2
Department of System Design Engineering, Keio University, Yokohama 223-8521, Japan
3
Zeeko KK, Saitama Shi, Saitama 330-0854, Japan
4
Zeeko Ltd, Vulcan Way, Coalville LE67 3FW, United Kingdom
* Corresponding author: pratap@iiitk.ac.in
Received:
25
March
2025
Accepted:
23
June
2025
Finishing of complex surfaces needs simultaneous movement of multiple axes and precessing the tool on the surface in a desired tool path. For finishing narrow internal surfaces, the conventional spherical or flat end tools are difficult to precess inside the geometry. Therefore, this work presents a new tooling system for grinding narrow channels on tungsten carbide surface, to be used in optical applications. A thin wheel type finishing wheel and related jig is designed to use on an ultra-precision finishing machine. Finishing using the newly developed wheel type tool with different grade shape adaptive grinding pads could generate excellent surface finish within Ra = 3 nm. Form correction capability of the developed tooling system was also verified where the form error of the channel could be reduced to ~7 μm P-V from an initial error of ~42 μm P-V, in 5 h of processing time.
Key words: Finishing / Shape adaptive grinding / Surface roughness / Form correction
© The Author(s), published by EDP Sciences, 2025
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