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Mechanism and techniques of mechanical lapping of nature diamond cutting tools' nose arc

  • Harbin Institute of Technology

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

Abstract

Rounded diamond cutting tools are used for ultraprecision cutting widely. The lapping qualities of the nose arc play a quite important role on the achieved accuracy of the machined surface. Therefore, it is urgent to solve the high-precision lapping problem of the nose arc. Firstly, based on the periodic bond chain (PBC) model, ratio model of material removal rate is proposed for tool nose arc, in which the {100} crystal plane is oriented as the rake face. And then, the optimal lapping direction is obtained for the nose arc of diamond cutting tools. More over, two lapping methods are proposed for tool nose arc according to the formula of material removal amount. The first is the lapping under variable pressure; the other is the lapping under variable time. After that, a new type lapping machine is designed by top-down method of Pro/Engineering. According to the requirements of the tools, a novel measuring method based on atomic force microscope (AFM) is put forward for nose roundness. A complete system is built for lapping of nature diamond cutting tools' nose arc.

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
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

  • Diamond cutting tool
  • lapping machine
  • mechanical lapping
  • mechanism of material removal
  • nose arc

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