Cutting mechanism and surface formation of ultra-precision raster fly cutting

Guoqing Zhang, Suet To

Research output: Chapter in book / Conference proceedingChapter in an edited book (as author)Academic researchpeer-review

1 Citation (Scopus)

Abstract

Ultra-precision raster fly cutting (UPRFC) is a discontinuous fly cutting, whereby the diamond cutting tool flies with spindle rotation and cuts the machined surface discontinuously. Accompanying the motion of spindle with a raster tool path covering the whole machined surface, the diamond tool can cut and form complex surface structures. The cutting mechanism of UPRFC makes it widely utilized in manufacturing non-rotational symmetric structures like pyramid array, free-form surface, F-theta lens, tetrahedron array, micro-lens array etc. The form accuracy of fabricated products could be down to submicron level, and surface roughness down to non-metric level. UPRFC is potentially used to fabricate products in multiple industry fields such as aerospace, automobile, laser, communication, optics. Study of the cutting mechanism of UPRFC and the influences thereof on surface integrity is a key topic since it helps to improve the machined surface quality. The intermittent cutting mechanism of UPRFC is quite different from other ultra-precision machining processes, e.g., single-point diamond turning, micro-milling; correspondingly, it may cause different effects on surface finish. This chapter will talk about the cutting mechanism and surface formation of UPRFC in five parts. Part 1 gives an overview to UPRFC technology and the application thereof on fabrication of optical products. Part 2 delivers a comprehensive knowledge on the material removal mechanism of UPRFC both in theoretical and experimental aspects. Part 3 talks about material sliding during chip formation, and it caused surface microwaves in UPRFC process; in this part, the appearance and influence factors of microwaves will be presented. Finally, tool wear features and their influences on the quality of machined surface were investigated in Part 4, and a short conclusion is summarized in Part 5. This chapter will give reader a comprehensive understanding of the cutting mechanism and surface generation in UPRFC.

Original languageEnglish
Title of host publicationSimulation and Experiments of Material-Oriented Ultra-Precision Machining
PublisherSpringer International Publishing
Pages103-127
Number of pages25
DOIs
Publication statusPublished - 2019

Publication series

NameSpringer Tracts in Mechanical Engineering
ISSN (Print)2195-9862
ISSN (Electronic)2195-9870

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Civil and Structural Engineering
  • Automotive Engineering
  • Instrumentation
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Industrial and Manufacturing Engineering

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