The Jet formation in Ring-shape Laser Induced forward transfer

Yu Deng, Yujian Zhang, C. P. Tsui, Zhongning Guo, Rongli Zhao, Sujuan Wang

Research output: Journal article publicationConference articleAcademic researchpeer-review

Abstract

In this study, ring-shape laser spot was used to induce a ring-shape cavitation aiming to improve the separation accuracy in the laser induced forward transfer (LIFT) process. The roles of laser pulse energy and the size of the ring-shape laser spot on jet formation in LIFT process were theoretically analyzed with ring-shape bubble collapse model established by Lattice Boltzmann Method. The results show that the geometrical symmetry of the ring-shape cavitation blocks the interaction between the inner and outer liquids, leading to higher separation accuracy. The simulation results show that under a specific ratio of internal and external diameter of the ring-shape laser spot, a secondary produced vortex velocity flow can further promote the accuracy of the transferring.

Original languageEnglish
Pages (from-to)138-142
Number of pages5
JournalProcedia CIRP
Volume95
DOIs
Publication statusPublished - 2020
Event20th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2020 - Zurich, Online, Switzerland
Duration: 19 Jan 202121 Jan 2021

Keywords

  • Liquid transfer
  • Numerical simulation
  • Ring-shape cavitation
  • Ring-shape laser-induced

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

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