74 J. Eur. Opt. Society-Rapid Publ. 21, 37( 2025)
4 Conclusion
This work presented a new tooling system and established its performance for SAG finishing of narrow cylindrical optics potentially useful in optical systems. A thin wheel type finishing tool with mounting jig for an ultra-precision 7-axis finishing machine was proposed. Fluid jet finishing was also used to polish the channel surface in order to establish the need and superiority of the proposed tooling system. Fluid jet finishing fails to generate uniform surface on tungsten carbide having a binder phase. The loose abrasives in the slurry tend to remove more amount of binder material and lesser removal from the tungsten carbide grains. The proposed wheel type SAG tools with different grades of abrasive pads could produce a fine surface having roughness Ra < 3 nm. In terms of form correction, the developed tooling system could converge the P-V error on the surface with error of 18 – 35 %. There is still scope of improvement in the design and material of the wheel and jig to make it more rigid and reduce the variations in the removal rate.
Acknowledgments
The authors acknowledge support from Zeeko Ltd. in loaning the polishing and measurement equipment.
Funding This research received no external funding.
Conflicts of interest The authors have nothing to disclose.
Data availability statement
Thedatasupportingreportedresultscanbemadeavailableonreasonable request.
Author contribution statement
Conceptualization, A. P. and A. B.; Methodology, A. P. and A. B.; Software, C. J.; Validation, A. P., C. J. and A. B.; Formal Analysis, A. P.; Investigation, A. P. and C. J.; Resources, A. B.; Data Curation, A. B. andC. J.; Writing – Original Draft Preparation, A. P.; Writing – Review & Editing, C. J., A. B.; Visualization, A. P., A. B.; Supervision, A. B.; Project Administration, A. B.; Funding Acquisition, A. B.
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