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Ultra-precision grinding and accuracy measurement of the hard-brittle thin-walled tubular optics

  • School of Mechatronics Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Hard-brittle thin-walled tubular optics are widely used in the field of high-power solid-state lasers. The 3D accuracy requirement and the clamping deformation of the hard and brittle thin-walled structure pose a great challenge for ultra-precision manufacturing. In this paper, fused silica thin-walled tubular optics with the length of 100mm, the inner diameter of 42mm and the outer diameter of 50mm were fabricated successfully through ultra-precision grinding. The profile accuracy of PV1.6μm, the surface roughness of Ra10nm, the straightness of 1.64μm, the roundness of 1.62μm and the cylindricity of 2.13μm were achieved through in-place dressing of grinding wheel, on-machine measurement, off-line measurement, and the iterative compensation machining. The technical difficulties of ultra-precision manufacturing of hard brittle thin-walled optics have been overcome.

Original languageEnglish
Title of host publication10th International Symposium on Advanced Optical Manufacturing and Testing Technologies
Subtitle of host publicationAdvanced Optical Manufacturing and Metrology Technologies
EditorsMingbo Pu, John H. Marsh, Bin Fan, Yifan Dai, Xiong Li, Xiangang Luo
PublisherSPIE
ISBN (Electronic)9781510650176
DOIs
StatePublished - 2021
Externally publishedYes
Event10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing and Metrology Technologies 2021 - Chengdu, China
Duration: 14 Jun 202117 Jun 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12071
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference10th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing and Metrology Technologies 2021
Country/TerritoryChina
CityChengdu
Period14/06/2117/06/21

Keywords

  • 3D profile accuracy
  • Hard-brittle thin-walled tubular optics
  • fused silica
  • surface roughness
  • ultra-precision grinding

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