Characteristics of thick film deposition in powder jet machining

Chihiro Nishikawa, Naohide Mizukuchi, Akihiko Tomie, Keita Shimada, Masayoshi Mizutani, Tsunemoto Kuriyagawa

Research output: Contribution to journalArticlepeer-review

Abstract

Powder jet machining can be used for both material removal (abrasive jet machining) and material deposition processes (powder jet deposition) by changing the powder spray conditions. The transition from the removal to the deposition is investigated. The transition between these two phenomena, removal and deposition, is studied through simulating the impact phenomena of two alumina particles with a glass substrate using the Smoothed Particle Hydrodynamics (SPH) method in this study. Crystalline structures of an alumina film created were observed with a Transmission Electron Microscope (TEM). Observation indicates that a thick multicrystalline film is created when the blasted particles are monocrystalline alumina. It is also concluded that fractures within the particle material are necessary for the deposition process, and that fragments less than 100 nm in size contribute to the deposition of the thick films.

Original languageEnglish
Pages (from-to)630-637
Number of pages8
JournalInternational Journal of Automation Technology
Volume7
Issue number6
DOIs
Publication statusPublished - 2013 Nov

Keywords

  • Abrasive jet machining
  • Micro-particle
  • Powder jet deposition
  • Powder jet machining
  • Smoothed particle hydrodynamics

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

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