Wheel wear aid surface/subsurface qualities when precision grinding optical materials

X. Tonnellier, P. Shore, X. Luo, P. Morantz, A. Baldwin, R. Evans, D. Walker

Research output: Chapter in Book/Report/Conference proceedingConference contribution

14 Citations (Scopus)

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® grinding cycle. The optical materials assessed included; Zerodur®, SIC and ULE®, 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.

Original languageEnglish
Title of host publicationOptomechanical Technologies for Astronomy
Subtitle of host publicationSPIE Astronomical Telescopes and Instrumentation
EditorsEli Atad-Ettedgui, Joseph Antebi, Dietrich Lemke
PublisherSPIE
Number of pages9
Volume6273
ISBN (Print)9780819463388
DOIs
Publication statusPublished - 6 Jul 2006
Externally publishedYes
EventOptomechanical Technologies for Astronomy - Orlando, United States
Duration: 24 May 200631 May 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6273
ISSN (Print)0277-786X

Conference

ConferenceOptomechanical Technologies for Astronomy
CountryUnited States
CityOrlando
Period24/05/0631/05/06

Fingerprint

Optical Materials
Optical materials
Grinding
optical materials
grinding
wheels
Wheel
Wheels
Wear of materials
Optics
Subsurface Damage
structural influence coefficients
optics
grit
Grinding mills
Diamond
Surface Quality
Strombus or kite or diamond
Telescopes
Surface properties

Cite this

Tonnellier, X., Shore, P., Luo, X., Morantz, P., Baldwin, A., Evans, R., & Walker, D. (2006). Wheel wear aid surface/subsurface qualities when precision grinding optical materials. In E. Atad-Ettedgui, J. Antebi, & D. Lemke (Eds.), Optomechanical Technologies for Astronomy: SPIE Astronomical Telescopes and Instrumentation (Vol. 6273). [627308] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6273 ). SPIE. https://doi.org/10.1117/12.670770
Tonnellier, X. ; Shore, P. ; Luo, X. ; Morantz, P. ; Baldwin, A. ; Evans, R. ; Walker, D. / Wheel wear aid surface/subsurface qualities when precision grinding optical materials. Optomechanical Technologies for Astronomy: SPIE Astronomical Telescopes and Instrumentation. editor / Eli Atad-Ettedgui ; Joseph Antebi ; Dietrich Lemke. Vol. 6273 SPIE, 2006. (Proceedings of SPIE - The International Society for Optical Engineering).
@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{\circledR} grinding cycle. The optical materials assessed included; Zerodur{\circledR}, SIC and ULE{\circledR}, 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 = "7",
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",

}

Tonnellier, X, Shore, P, Luo, X, Morantz, P, Baldwin, A, Evans, R & Walker, D 2006, Wheel wear aid surface/subsurface qualities when precision grinding optical materials. in E Atad-Ettedgui, J Antebi & D Lemke (eds), Optomechanical Technologies for Astronomy: SPIE Astronomical Telescopes and Instrumentation. vol. 6273, 627308, Proceedings of SPIE - The International Society for Optical Engineering, vol. 6273 , SPIE, Optomechanical Technologies for Astronomy, Orlando, United States, 24/05/06. https://doi.org/10.1117/12.670770

Wheel wear aid surface/subsurface qualities when precision grinding optical materials. / Tonnellier, X.; Shore, P.; Luo, X.; Morantz, P.; Baldwin, A.; Evans, R.; Walker, D.

Optomechanical Technologies for Astronomy: SPIE Astronomical Telescopes and Instrumentation. ed. / Eli Atad-Ettedgui; Joseph Antebi; Dietrich Lemke. Vol. 6273 SPIE, 2006. 627308 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6273 ).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Wheel wear aid surface/subsurface qualities when precision grinding optical materials

AU - Tonnellier, X.

AU - Shore, P.

AU - Luo, X.

AU - Morantz, P.

AU - Baldwin, A.

AU - Evans, R.

AU - Walker, D.

PY - 2006/7/6

Y1 - 2006/7/6

N2 - 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® grinding cycle. The optical materials assessed included; Zerodur®, SIC and ULE®, 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.

AB - 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® grinding cycle. The optical materials assessed included; Zerodur®, SIC and ULE®, 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.

KW - Cracks

KW - Diamonds resin bond wheel

KW - SiC

KW - Subsurface damages

KW - ULE

KW - Wheel wear

KW - Zerodur

UR - http://www.scopus.com/inward/record.url?scp=33749636853&partnerID=8YFLogxK

U2 - 10.1117/12.670770

DO - 10.1117/12.670770

M3 - Conference contribution

SN - 9780819463388

VL - 6273

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Optomechanical Technologies for Astronomy

A2 - Atad-Ettedgui, Eli

A2 - Antebi, Joseph

A2 - Lemke, Dietrich

PB - SPIE

ER -

Tonnellier X, Shore P, Luo X, Morantz P, Baldwin A, Evans R et al. Wheel wear aid surface/subsurface qualities when precision grinding optical materials. In Atad-Ettedgui E, Antebi J, Lemke D, editors, Optomechanical Technologies for Astronomy: SPIE Astronomical Telescopes and Instrumentation. Vol. 6273. SPIE. 2006. 627308. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.670770