@inproceedings{d78515a00c604d8d891b004b586eaba2,
title = "Wheel wear aid surface/subsurface qualities when precision grinding optical materials",
abstract = "An ultra precision large optics grinder, which will provide a rapid and economic solution for grinding large off-axis aspherical and free-form optical components, has been developed at Cranfield University. This paper presents representative grinding experiments performed on another machine - a 5 axes Edgetek - in order to verify the proposed BoX{\textregistered} grinding cycle. The optical materials assessed included; Zerodur{\textregistered}, SIC and ULE{\textregistered}, all three being materials are candidates for extreme large telescope (ELT) mirror segments. Investigated removal rates ranged from 2mm3/s to 200mm3/s. The higher removal rate ensures that a 1 metre size optic could be ground in less than 10 hours. These experiments point out the effect of diamond grit size on the surface quality and wheel wear. The power and forces for each material type at differing removal rates are presented, together with subsurface damage.",
keywords = "Cracks, Diamonds resin bond wheel, SiC, Subsurface damages, ULE, Wheel wear, Zerodur",
author = "X. Tonnellier and P. Shore and X. Luo and P. Morantz and A. Baldwin and R. Evans and D. Walker",
year = "2006",
month = jul,
day = "6",
doi = "10.1117/12.670770",
language = "English",
isbn = "9780819463388",
volume = "6273",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Eli Atad-Ettedgui and Joseph Antebi and Dietrich Lemke",
booktitle = "Optomechanical Technologies for Astronomy",
address = "United States",
note = "SPIE Astronomical Telescopes + Instrumentation ; Conference date: 24-05-2006 Through 31-05-2006",
}