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Experimental investigation of cutting mechanism of KDP crystal

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

Abstract

The Potassium Dihydrogen Phosphate(KDP) crystal is used as key non-linear optical material in Inertial Confinement Fusion(ICF). Traditional photoprocessing methods such as grinding and polishing are not suitable and Single Point Diamond Fly Cutting is adopted because of its special physicochemical characteristics. A method of observing KDP chips to study cutting mechanics has been presented in this paper. The KDP crystal was processed by a mono diamond tool with arc-nose, and plastic deformation can be found in the inside chip by optical microscope, also apparent transition of brittle fracture to plastic deformation can be found along the width direction of chips. By this method, chips in different cutting parameters were compared to study the relationship between critical thickness of ductile removal and cutting parameters like cutting depth and feedrate. Cutting experiments along different direction on different crystal planes were operated to research anisotropic characteristic of KDP crystal.

Original languageEnglish
Title of host publication5th International Symposium on Advanced Optical Manufacturing and Testing Technologies
Subtitle of host publicationAdvanced Optical Manufacturing Technologies
EditionPART 1
DOIs
StatePublished - 2010
Externally publishedYes
Event5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies - Dalian, China
Duration: 26 Apr 201029 Apr 2010

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
NumberPART 1
Volume7655
ISSN (Print)0277-786X

Conference

Conference5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Country/TerritoryChina
CityDalian
Period26/04/1029/04/10

Keywords

  • KDP crystal
  • brittle-ductile transition; chip morphology
  • cutting mechanism

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