High surface quality micro machining of monocrystalline diamond by picosecond pulsed laser

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

In micro machining of monocrystalline diamond by pulsed laser, unique processing characteristics appeared only under a few ten picosecond pulse duration and a certain overlap rate of laser shot. Cracks mostly propagate in parallel direction to top surface of workpiece, although the laser beam axis is perpendicular to the surface. This processed area can keep diamond structure, and its surface roughness is smaller than Ra = 0.2 μm. New laser micro machining method to keep diamond structure and small surface roughness is proposed. This method can contribute to reduce the polishing process in micro machining of diamond.

Original languageEnglish
Pages (from-to)197-200
Number of pages4
JournalCIRP Annals
Volume68
Issue number1
DOIs
Publication statusPublished - 2019

Keywords

  • Diamond
  • Laser beam machining (LBM)
  • Laser micro machining

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'High surface quality micro machining of monocrystalline diamond by picosecond pulsed laser'. Together they form a unique fingerprint.

Cite this