Minimizing burrs and defects on microstructures with laser assisted micromachining technology

Shaolin Xu, Shinsaku Osawa, Ryuichi Kobayashi, Keita Shimada, Masayoshi Mizutani, Tsunemoto Kuriyagawa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Molding technology is widely used to manufacture optical components because of its high efficiency. Along with the quick development of miniaturization in industry, the detrimental effects of previously negligible burrs and defects on mold surfaces have become significant to the performance of components, so these problems should be minimized. In this study, a laser assisted micromachining method was developed to solve this problem during the fabrication of periodic microstructures on a molding material of electroless nickel-phosphorus (NiP) plating. The transient temperature distributions of the workpiece under laser irradiation and the change in the maximum shear stress during the laser assisted micromachining process were simulated to set appropriate experimental conditions. Then, periodic micropyramid structures were fabricated by both conventional cutting and the laser assisted cutting processes. Results show that defects largely decreased on machined structures with the assistance of laser irradiation. The decrease in specific cutting force and the change of chips’morphology were also utilized to analyze the reasons for this improvement.

Original languageEnglish
Pages (from-to)891-898
Number of pages8
JournalInternational Journal of Automation Technology
Volume10
Issue number6
DOIs
Publication statusPublished - 2016 Nov

Keywords

  • Burrs and defects
  • Electroless NiP plating
  • Laser assisted micromachining
  • Microstructures

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Minimizing burrs and defects on microstructures with laser assisted micromachining technology'. Together they form a unique fingerprint.

Cite this