Modelling Powder Concentration Distribution From a Coaxial Deposition Nozzle for Laser-Based Rapid Tooling

[+] Author and Article Information
Andrew J. Pinkerton, Lin Li

Laser Processing Research Centre, Department of Mechanical, Aerospace and Manufacturing Engineering, UMIST, Manchester M60 1QD, United Kingdom

J. Manuf. Sci. Eng 126(1), 33-41 (Mar 18, 2004) (9 pages) doi:10.1115/1.1643748 History: Received June 01, 2003; Online March 18, 2004
Copyright © 2004 by ASME
Your Session has timed out. Please sign back in to continue.



Grahic Jump Location
Modelled variations in axial powder concentrations with different coaxial powder injection angles. (a) constant powder outlet passage diameter, (b) constant maximum powder concentration point, (c) as (b) and also maintaining a constant powder outlet area.
Grahic Jump Location
Modelled changes in (a) attenuation factor and (b) laser beam intensity along the axis of at coaxial deposition head with different powder injection angles
Grahic Jump Location
Diagram of the model formulation in the axial plane
Grahic Jump Location
Schematic diagram of the experimental apparatus used for flow visualization and measurement
Grahic Jump Location
Schematic diagram of the conventional coaxial laser deposition nozzle used
Grahic Jump Location
The normalized luminence in the radial (transverse) direction across (a) initial and (b) consolidated powder streams from a coaxial nozzle
Grahic Jump Location
The normalized luminence along the central axis below a coaxial nozzle with substrate displacement of (a) 20.5 mm, (b) 25.5 mm, (c) 30.5 mm and (d) 35.5 mm
Grahic Jump Location
A comparison of (a) modelled powder concentration distributions in different transverse planes and (b) images of the powder flow, below a coaxial nozzle
Grahic Jump Location
Modelled and experimental axial powder concentrations




Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In